Database Users

a500 stuck on booting kernel

first thanks to all
friend gave me a a500 to unbrick- have no history on it.
been reading and searching for days with no luck.
the only thing i can get done is loading boot loaders in apx mode, but recovery's never get on(maby they do).
i can change the boot loader to anyone i try.
the device will not boot past the acer screen.
when trying to boot or boot into recovery from skrilax_cz bootloader it gets stuck at "booting recovery kernel image" and their she stays.
i am assuming that the kernel is toast. i have tried to search to replace the kernel but have no idea what rom is on, or a guide to help me thru in apx mode.
in apx mode i have watch it successfully watch it write all the images in root-3.2.1-V4.7z
now i am just confused! lol
anyways anyone got some ideas for me?
and thanks again

If you have no issue getting the bootloader to load, and you are on ver 3 or 4, or higher, have you tried "Fastboot" to load a recovery image?
Holding Vol+ and PWR should put you into fastboot mode.
The you can start fastboot from the SDK. Should be able to do it that way to flash a recovery image.
If you install a recovery, and you reboot, and then find the recovery is not there, it's probably because you didn't delete the boot-recovery file from the stock rom after installing. Every time you boot, your recovery gets replaced by a stock acer recovery, which is useless.

Moscow Desire said:
If you have no issue getting the bootloader to load, and you are on ver 3 or 4, or higher, have you tried "Fastboot" to load a recovery image?
Holding Vol+ and PWR should put you into fastboot mode.
The you can start fastboot from the SDK. Should be able to do it that way to flash a recovery image.
If you install a recovery, and you reboot, and then find the recovery is not there, it's probably because you didn't delete the boot-recovery file from the stock rom after installing. Every time you boot, your recovery gets replaced by a stock acer recovery, which is useless.
Click to expand...
Click to collapse
the tab while booting gets stuck at "booting primary kernel image" never goes further on normal boot.
i can change the bootloader but it gets stuck on the acer loader never goes.
if i run nvflash on root-3.2.1 this is the output:
C:\Users\larry\Downloads\root-3.2.1\Image>nvflash --bct flash.bct --setbct --odm
data 0x100c0105 --configfile flash.cfg --create --bl bootloader.bin --sbk 0x2F4
26E00 0xEB3DF106 0xAB771504 0x9EE32003 --go
Nvflash started
rcm version 0X20001
System Information:
chip name: t20
chip id: 0x20 major: 1 minor: 3
chip sku: 0x8
chip uid: 0x0380700140ffd397
macrovision: disabled
hdcp: enabled
sbk burned: true
dk burned: true
boot device: emmc
operating mode: 4
device config strap: 0
device config fuse: 0
sdram config strap: 0
sending file: flash.bct
- 4080/4080 bytes sent
flash.bct sent successfully
odm data: 0x100c0105
downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: bootloader.bin
| 714385/714385 bytes sent
bootloader.bin sent successfully
waiting for bootloader to initialize
bootloader downloaded successfully
setting device: 2 3
creating partition: BCT
creating partition: PT
creating partition: EBT
creating partition: GP1
creating partition: SOS
creating partition: LNX
creating partition: APP
creating partition: CAC
creating partition: MSC
creating partition: FLX
creating partition: AKB
creating partition: UDA
creating partition: GPT
Formatting partition 2 BCT please wait.. done!
Formatting partition 3 PT please wait.. done!
Formatting partition 4 EBT please wait.. done!
Formatting partition 5 GP1 please wait.. done!
Formatting partition 6 SOS please wait.. done!
Formatting partition 7 LNX please wait.. done!
Formatting partition 8 APP please wait.. done!
Formatting partition 9 CAC please wait.. done!
Formatting partition 10 MSC please wait.. done!
Formatting partition 11 FLX please wait.. done!
Formatting partition 12 AKB please wait.. done!
Formatting partition 13 UDA please wait.. done!
Formatting partition 14 GPT please wait.. done!
done!
sending file: bootloader.bin
| 714385/714385 bytes sent
bootloader.bin sent successfully
sending file: recovery.img
| 5171200/5171200 bytes sent
recovery.img sent successfully
sending file: boot.img
/ 3125248/3125248 bytes sent
boot.img sent successfully
sending file: system.img
/ 629145600/629145600 bytes sent
system.img sent successfully
sending file: flexrom.img
/ 104857600/104857600 bytes sent
flexrom.img sent successfully
sending file: checksum.img
/ 10485760/10485760 bytes sent
checksum.img sent successfully
everything said successful, but then it sits on the acer screen 4ever.
is that not everything that needs to be flashed?
also i put a freshly formatted sdcard in it(didnt have one) is their any files that should be on it?<<<(sorry for the newbie question)
i glad i can get in apx mode and sill talk to it, the xooms dont have that option if **** goes bad, but no problems their
thanks again for the help.

ok i have been able to get into recovery after fixing some partions ( found a thread.
i have skrilax bootload v8 on.
in recovery i tried installing these 3 roms:
Lightspeed_4.8.zip
Acer_AV041_A500_1.054.00_WW_GEN1-DEODEXED-FULLROOT.zip
and a jelly bean rom.
i still get stuck at "booting primary kernel image.
anyone have any thoughts for me?

pleading for some direction

which recovery did you push

thanks for responding
cwm recovery v5.5.0.x(thor2002ro/digetx rev1.7.3 icconia a500x

liftman- said:
thanks for responding
cwm recovery v5.5.0.x(thor2002ro/digetx rev1.7.3 icconia a500x
Click to expand...
Click to collapse
That's the good one. My "gut" says that you may have an issue with the ICS bootloader. If it were me, I'd start over and ensure that you have the correct SBK...make double sure. Flash the recovery again in fastboot. Test that you can get into recovery through fastboot or the Power+voldown method. Once in recovery, format/wipe everything...except the sdcard of course. Flash a rom that will work with the unlocked ics bootloader.
Another thing to try is to flash twrp 2.0. as your recovery. But I've read that recovery is causing some issues with some folks. Still worth a shot though.
If you still can get it to boot. Start the process over again with a honeycomb bootloader.
Good luck.

i double check my sbk and it was ok, tried a few recoverys all went on fine except the touch screen versions.
does wm recovery v5.5.0.x(thor2002ro/digetx rev1.7.3 icconia a500x touch buttons supposed to work? this might be the reason if the touch screen is fooked. when it starts the kernel on boot i see a quick screen flick then it gets stuck, same reactions on touch screen versions of the recoverys.
little different learning curve then my xoom, bit still enjoying learning a diffent device.

Yes, the buttons in the lower right should work. You can also use swipe gesture...swipe up and down in the menu, swipe right to "enter".
Have you tried going back to a HC BL yet? Maybe the repartitioning of the ICS BL just didn't take.

thanks thanks your your help the the touch screen is broke and is the cause.
it was fun learning another tablet
love my xoom

liftman- said:
thanks thanks your your help the the touch screen is broke and is the cause.
it was fun learning another tablet
love my xoom
Click to expand...
Click to collapse
Instead of using NVFlash to install recoveries, you have some options. Fastboot
Boot V8 Bootloader to Fastboot Mode, plug into PC. Go to the Android SDK on your PC, open a command window in the folder with fastboot.exe (copy your recovery.img file there also) Then type;
Fastboot Flash Recovery nameofyourrecovery.img
The "touchscreen recoveries" are indeed a bit wonky. Sometimes you have to go slow when selecting them.
MD

Similar issue
So i recently tried to update to ics bootloader, and i ended up with skrilax_cz's bootloader V6 (0.03.14-mul).
CWM worked at first and i flashed a rom which i despise, after which point recovery ceased working.
The rom still boots.
Now when i boot into recovery either by holding the up arrow, or the down arrow and selecting recovery from menu it just gets stuck at "booting recovery image"
I can get into fastboot, but i cannot get into apx. I read somewhere that in skrilax_cz it's called debug mode, but debug mode is enabled and i'm not really sure how to tell the bootloader to go to apx mode (i've tried the reset button power button thing).
Does anyone know how to put this thing into apx mode, or how to flash a bootloader through the rom or through fastboot? Any other solutions are welcome, my end goal is to have a functioning recovery.
Thanks

soulbandaid said:
So i recently tried to update to ics bootloader, and i ended up with skrilax_cz's bootloader V6 (0.03.14-mul).
CWM worked at first and i flashed a rom which i despise, after which point recovery ceased working.
The rom still boots.
Now when i boot into recovery either by holding the up arrow, or the down arrow and selecting recovery from menu it just gets stuck at "booting recovery image"
I can get into fastboot, but i cannot get into apx. I read somewhere that in skrilax_cz it's called debug mode, but debug mode is enabled and i'm not really sure how to tell the bootloader to go to apx mode (i've tried the reset button power button thing).
Does anyone know how to put this thing into apx mode, or how to flash a bootloader through the rom or through fastboot? Any other solutions are welcome, my end goal is to have a functioning recovery.
Thanks
Click to expand...
Click to collapse
Since you have a working rom the easiest way might be to try Gersma's AfterOta tool http://forum.xda-developers.com/showthread.php?t=1675939&highlight=afterota.
Be sure to save your SBK if you don't already have it.
Also you could try Blackthund3r's APXtool. It should boot your tablet into APX mode while the rom is running. Either one should get you back on track.

JdgM3NT4L said:
Since you have a working rom the easiest way might be to try Gersma's AfterOta tool http://forum.xda-developers.com/showthread.php?t=1675939&highlight=afterota.
Be sure to save your SBK if you don't already have it.
Also you could try Blackthund3r's APXtool. It should boot your tablet into APX mode while the rom is running. Either one should get you back on track.
Click to expand...
Click to collapse
Thanks for the fast reply. I probably should have mentioned that i had tried both those tool and neither could get into apx. Blackthund3rs 'doesn't detect an apx device' and afterota chuggs along as if it is working, but it doesn't do anything other than cause my rom to optomize the programs again (i suspect it is unable to get the device into apx as neither i or blackthund3r's tool can).

soulbandaid said:
Thanks for the fast reply. I probably should have mentioned that i had tried both those tool and neither could get into apx. Blackthund3rs 'doesn't detect an apx device' and afterota chuggs along as if it is working, but it doesn't do anything other than cause my rom to optomize the programs again (i suspect it is unable to get the device into apx as neither i or blackthund3r's tool can).
Click to expand...
Click to collapse
You've got usb debugging checked I imagine... right? If you do and can use ADB you might consider installing recovery that way.
Also have you tried Acer Recovery Installer by Euclid's Brother? It is in the play store. You should be able to get a custom recovery that way.
If neither of those work I think that you might want to read timmydean's EUU thread and see if that might help you out.

soulbandaid said:
Thanks for the fast reply. I probably should have mentioned that i had tried both those tool and neither could get into apx. Blackthund3rs 'doesn't detect an apx device' and afterota chuggs along as if it is working, but it doesn't do anything other than cause my rom to optomize the programs again (i suspect it is unable to get the device into apx as neither i or blackthund3r's tool can).
Click to expand...
Click to collapse
Ok, have you tried this? Seems you're wasting your time trying all the one click tools.
Boot your tab Vol+ and PWR. If you have the skrilax_cz bootloader installed, it should boot into the boot menu. Select "Fastboot". You probably aren't going to see a bunch of bells and whistles, just at the top it says "fastboot mode".
Copy the CWM 1.7.2 or 1.7.3 image file you downloaded into your Android SDK Platform tools folder where fastboot.exe is located. (you should already have the Android SDK installed) Open a CMD window in the same folder as fastboot.exe (this should be in your platform tools folder. Plug your tab in (make sure windows recognizes it) Then type in the CMD window:
fastboot flash recovery nameofrecovery.img (where nameofrecovery is the recovery image file you are flashing)
Should work. This is why Skrilax_cz gave the bootloader fastboot capability a long time ago around version 3 or 4. Sometimes these 1 click tools just don't co-operate. Using fastboot is by far the easiest. As long as your Acer drivers are installed properly.
Also for your info:
Note that you can only install ICS roms. Forget HC. Also, you must do wipes. Most of the "animation-loop" issues are either because;
a. Wrong Bootloader-Kernel combination. (HC bootloader and ICS kernel, or, ICS bootloader and HC kernel)
b. Data was not fully wiped before installing a rom.
c. Other issues could be incompatible Recovery program. (see b)
Having the wrong or a buggy Recovery can also hang at "loading recovery image" This has happened in the past, and should be easy to fix by doing the initial steps. "should be".
Also, a corrupted file/files on the EXT SD Card may also play a factor. I advise backing up those files, format the card, then try fresh. You can always copy the files back later. Except for old recovery files. Some are not compatible with other Recovery systems.
MD

well i had to know for sure it was the touch screen, so i opened it up and unpluged the atmel board and she booted every time.
anybody have a link or price for the touch screen?
using a tablet with a usb keyboard and mouse seems silly lol

liftman- said:
well i had to know for sure it was the touch screen, so i opened it up and unpluged the atmel board and she booted every time.
anybody have a link or price for the touch screen?
using a tablet with a usb keyboard and mouse seems silly lol
Click to expand...
Click to collapse
As a matter of fact, yes...
Send a PM to Dincdoes.me
He had a cracked touch a month or so ago, and I think he found a replacement for about $70.
If it's not him, then search the forums, because somebody was replacing one not too long ago.
Link for parts breakdown;
http://forum.xda-developers.com/showpost.php?p=15326127&postcount=8
MD

thanks
i found one for about 70 also, not worth it for the price.

[GUIDE][nvFlash]The Chickens Guide to Flashing the bootloader manually

here is a guide and some pix so you can see what 'should' happen when using civato's nvFlash manual method.
Get yr 15 digit CPUID - not your 11/13 digit ICS serial no.
the correct uid is VITAL, using the wrong one can cause you problems.
all righty you've made the decision to flash the patched bootloader and install a custom recovery and one of the many custom ICS/JB roms -
1. Ensure both Acer and adb drivers are installed
2. Retrieve HC CPUID
3. Generate your SBK from Blackthund3rs site: http://a500bootloaderflash.tk/sbkcalc/
4. Download yr ROM of choice and put it on yr external sd card
5. Put your tab in APX Mode manually or with apxFlashTool
6. Flash the Bootloader/Custom Recovery
7. Reboot to Custom recovery and do a full data wipe/format
8. Flash your chosen ICS/JB ROM
9. For good measure reboot to recovery and do another full wipe
10. Reboot and enjoy ICS/Jellybean
nb: I know it sounds overkill for all these data wipes/formats but in my experiences and alot of others on here multiple wipes ensure a smooth
running rom
Prep Work
To enter APX mode - Turn your tab off then press and hold in the Reset button(with paper clip).
Do not release it.
Press and hold power for 3 secs and then release it.
After another second, release the reset button.
Download V8-UNL-ICS-HC-bootloader-MULTI-cwm and extract the files for the manual nvFlash
If you are coming from HC then d/l your ICS/JB rom of choice to yr ext sdcard
WARNING: at Step 7. Do not "press any key to continue..." UNLESS yr tab is in bootloader mode, doing so causes alot more issues and
necessitates a rollback to HC if you continue....
*****************************************************
ok here we go:
Step 1. You must enter APXMode FIRST
Your Windows PC should then detect your device and install the APX driver. You should then have an APX USB device installed.
If you do not have an APX USB device listed in your system tray, you cannot proceed.
The screen of your tablet is black and the Power Light is ON
Step 2. Once yr tabs screen has turned black and the power lite is on then
Step 3. Right click on the v8.bat file from civs package and choose "Edit"
Go thru the file and remove any "Cls" lines if there are any - this allows you to see what the flash is doing.
Save the changes thenRun the bat file - i'm using V6-3.bat in this example but if you are using v8 it will be named v8.bat
NOTE: You will see an instruction on the opening screen to "delete recovery from boot.p file"
On a reboot, this file overwrites your newly flashed custom recovery with the Acer Stock Recovery, not what we want!!
Please check /system for the boot.p file - if its there then delete or rename it b4 going on
Step 4. Enter your SBK
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Step 5. Your tab will display this - "System Information" Screen
Here you can see clearly your one and only cpuid!!!! Or 'chip uid' as it is named here.
Warning: If this system info is not displayed you run the risk of getting stuck in apx mode....
Close out of the command window and disconnect your USB and check yr SBK and/or the Acer USB Driver is showing in your "Safely remove hardware" icon
if it isnt reinstall the Acer Drivers
Step 6. All systems are go!! Go ahead and press any key...when your tab is in bootloader mode
7. WAIT for your tab to display "Acer Iconiaa500 APX Mode"
this is 'bootloader mode' where the flash needs to take place,
then press any key...
if you carry on without yr tab showing this message...
then you will softbrick and to fix that you will need to downgrade to HC and
you will lose all your data
There are 'usually' only 3 reasons you will not see the "Acer Iconia a500 APX Mode" message
1. The Drivers are failing to install correctly
2. Incorrect cpuid
3. Getting stuck at Formatting/partition errors is the ".bct issue" apxFlashTool 0.4 fixes this
Step 8 the flash begins!!!
the flash will take about 30 secs at most
on your tab you will see in big white letters the word PASS
in smaller red letters "Reboot the Device"
So power down yr tab and reboot into your new recovery and backup your system then flash your ICS/Jellybean Rom.
Congratulations you are no longer a chicken
EDIT: I've tried not to put too much info in here to keep things relatively easy to read - if you think there is info that should be in here just let me know and I'll add it

:good::good:
Nice guide. Should help out anyone who is still unsure. The only thing is, where's Daisy?

JdgM3NT4L said:
:good::good:
...The only thing is, where's Daisy?
Click to expand...
Click to collapse
hahaha, funnee J:laugh::laugh::laugh: good ol' Daisy
and for those wondering what else you can do with your unlocked bootloader...
you too can enjoy the 'Daisy' boot logo hehehe!!

dibb_nz said:
hahaha, funnee J:laugh::laugh::laugh: good ol' Daisy
and for those wondering what else you can do with your unlocked bootloader...
you too can enjoy the 'Daisy' boot logo hehehe!!
Click to expand...
Click to collapse
lmao.
this guide should be stickied eh?

can you get a bit more detailed for these?
Ensure both Acer and adb drivers are installed
2. Retrieve HC CPUID
3. Generate your SBK using the CPUID from vaches site

lbhocky19 said:
can you get a bit more detailed for these?
Ensure both Acer and adb drivers are installed
2. Retrieve HC CPUID
3. Generate your SBK using the CPUID from vaches site
Click to expand...
Click to collapse
For info on the drivers and retrieving yr cpuid see this guide here but basically you'll need the acer drivers from acer support page and the android usb/adb drivers, these drivers ensure yr tab can communicate with yr pc and can be d/l in a zip file from post in the link above.
The SBK (Secure Boot Key) is generated from the cpuid. Go to vaches site (the link is provided in the nvflash as u can see in the first pic above) Its as simple as entering yr cpuid in the box and it will give you a number formatted like this:
0x000D0000 0x00000001 0x0AAACCCC 0x0000000 - this is your SBK

chismay said:
lmao.
this guide should be stickied eh?
Click to expand...
Click to collapse
hey dude!! good to see u, pls tell me you;ve taken daisy for a spin m8????????
or r u still in that henhouse:laugh::laugh::laugh::laugh:

<Deleted by user>

Stuck on Step 8
First of all thank-you so much for writing this it has been very helpful so far.
Got stuck on Step 8, I did everything exactly as stated, go to the green Acer logo, with "Acer Iconia APX Made" at the top left, but command prompt returned with the following:
Nvflash started
[resume mode]
Formatting partition 4 please wait.. Command Execution failed cmd 13, error 0x120002
FAILED!
command failure: format partition failed <bad command>
Bootloader status: unknown operation <code: 1> message: flags: 0
Before that in step 7 I also got an error, but the it allowed press an key to continue anyway:
sending file: bct.bct
- 4080/4080 bytes sent
bct.bct sent successfully
odm data: 0x300d88011
downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: bootloader_apx.bin
| 714980/714981 bytes sent
bootloader_apx.bit sent successfully
waiting for bootloader to initialize
bootloader downloaded successfully
failed executing command 25 NvError 0x120002
command failure: sync failed <bad data>
bootloader status: partition table is invalid, missing required information <code: 14> message nverror:0x4 (0x4) flags: 0
I realize that I have probably given too much information and I apologize for that. Any help at all would be much appreciated!
Also: This was done using option 3, but I tried it with option 4 as well and got the same error. In step 5 it did not show System Information, but I checked the acer divers, the safely remove hardware and my SBK using different generators and it all checks out.
PLEASE HELP ME!!!!

Luke00123 said:
First of all thank-you so much for writing this it has been very helpful so far.
Got stuck on Step 8, I did everything exactly as stated, go to the green Acer logo, with "Acer Iconia APX Made" at the top left, but command prompt returned with the following:
Nvflash started
[resume mode]
Formatting partition 4 please wait.. Command Execution failed cmd 13, error 0x120002
FAILED!
command failure: format partition failed <bad command>
Bootloader status: unknown operation <code: 1> message: flags: 0
Before that in step 7 I also got an error, but the it allowed press an key to continue anyway:
sending file: bct.bct
- 4080/4080 bytes sent
bct.bct sent successfully
odm data: 0x300d88011
downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: bootloader_apx.bin
| 714980/714981 bytes sent
bootloader_apx.bit sent successfully
waiting for bootloader to initialize
bootloader downloaded successfully
failed executing command 25 NvError 0x120002
command failure: sync failed <bad data>
bootloader status: partition table is invalid, missing required information <code: 14> message nverror:0x4 (0x4) flags: 0
I realize that I have probably given too much information and I apologize for that. Any help at all would be much appreciated!
Also: This was done using option 3, but I tried it with option 4 as well and got the same error. In step 5 it did not show System Information, but I checked the acer divers, the safely remove hardware and my SBK using different generators and it all checks out.
PLEASE HELP ME!!!!
Click to expand...
Click to collapse
you dont say what rom you were on or whether your tab was running ok before you tried the flash??
Normally if you don't see the system info window things dont go well after that!
But in saying that it seems you've made sure everything else is right, and as long as when you put your tab in apx mode you saw the "acer download mode" displayed you should be good!!
partitioning errors such as yours are "normally" easy to fix by running timmydeans root tool - there is a link to it in the root guide in my sig.
Download it and put your tab in apx mode, connect your usb cable and then run the pbj20.exe ??
you should get asked to enter your CPUID(not the sbk!!) take off the 0x at the beginning if its there
also: in the cpuid guide (in my sig)theres a link to a short guide by "lcd047" how to use timmydeans to repartition and flash the bootloader all in one go - might wanna take a look at that while you're waiting for the download....
Originally Posted by lcd047 wrote:
"I downloaded timmyDean's root-3.2.1-V4.7z
I booted the tablet (in APX mode) and I connected the USB cable to it
in the directory root-3.2.1/Image I run the command
nvflash --bct flash.bct --setbct --odmdata 0x100c0105 --configfile flash.cfg --create --bl bootloader.bin --sbk (your sbk number after converting your UID number) 0xXXXXXXXX 0xXXXXXXXX 0xXXXXXXXX 0xXXXXXXXX --go
without rebooting, I flashed the v7 bootloader and recovery as per the bootloader thread; since the partition table was restored at the previous step, the operation now succeeded;
I rebooted the tablet in recovery, and proceeded to wipe the data and flash a ROM the usual way.
Click to expand...
Click to collapse
let us know how you go
rgds dibb

Still Stuck
Right sorry. I am sunning the stock Acer ICS 4.0.3 rom, with the stock ICS 4.0.3 recovery image and ICS bootloader 3.12-ICS.
I tried running the file PBJ20upgrade.exe with my tablet pluged in in APX mode, but it told me to make sure my tablet was unpluged and that if a new hardware window opened to close it (as if it was going to install drivers or something). I did this and clicked continue but a window poped up sating EUUs had stopped. I traied it also leaving my tablet plugped in, same results.
If it is of significance I am using the Acer drivers verson: USB Driver_Acer_1.06.1500_A30H_A500. The other version: USB_Acer_1.00.0524_A30HA31HA32H_A (the one that blackthunder has you download) would not install saying that no previous version was found.

Myt have put u a bit wrong there. There's 2 ways to run it...if via .exe don't connect yr cable and wait for steps to run via apex mode.
If running lcd047 steps... Put in apx mode and run the bat file in the image folder
Is that bit clearer??
Sent from my GT-I9300 using Tapatalk 2

THANK-YOU!!!
Luke00123 said:
Right sorry. I am sunning the stock Acer ICS 4.0.3 rom, with the stock ICS 4.0.3 recovery image and ICS bootloader 3.12-ICS.
I tried running the file PBJ20upgrade.exe with my tablet pluged in in APX mode, but it told me to make sure my tablet was unpluged and that if a new hardware window opened to close it (as if it was going to install drivers or something). I did this and clicked continue but a window poped up sating EUUs had stopped. I traied it also leaving my tablet plugped in, same results.
If it is of significance I am using the Acer drivers verson: USB Driver_Acer_1.06.1500_A30H_A500. The other version: USB_Acer_1.00.0524_A30HA31HA32H_A (the one that blackthunder has you download) would not install saying that no previous version was found.
Click to expand...
Click to collapse
It work! Thank-you all SOOOOOOOO MUCH!
I missed the second half of your post! I flashed everything back to HC and then installed the new Bootloader and Reovery!

haha....you are sooooo welcome, pleased you got it, happy flashing!!!
rgds
dibb
Sent from my GT-I9300 using Tapatalk 2

Luke00123 said:
It work! Thank-you all SOOOOOOOO MUCH!
I missed the second half of your post! I flashed everything back to HC and then installed the new Bootloader and Reovery!
Click to expand...
Click to collapse
Hey can u please tell me how did it work for u ... cause i have a similar problem and i cant figure it out ..here what i get:
bootloader downloaded successfulyy
setting device: 2 3
creating partition: BCT
failed executing command 16 NvError 0x120002
bootloader status: failed to create the partition <code : 10> message: nverror:0x5
<0x1000005> flags: 0
What is the problem here ?

moizsami said:
Hey can u please tell me how did it work for u ... cause i have a similar problem and i cant figure it out ..here what i get:
bootloader downloaded successfulyy
setting device: 2 3
creating partition: BCT
failed executing command 16 NvError 0x120002
bootloader status: failed to create the partition <code : 10> message: nverror:0x5
<0x1000005> flags: 0
What is the problem here ?
Click to expand...
Click to collapse
Hardware fault probably, especially so if none of the re-partitioning tools work i.e tdv4/babsector and you're positive you're following instructions correctly

moizsami said:
Hey can u please tell me how did it work for u ... cause i have a similar problem and i cant figure it out ..here what i get:
Click to expand...
Click to collapse
Sure I followed these instructions:
"I downloaded timmyDean's root-3.2.1-V4.7z
I booted the tablet (in APX mode) and I connected the USB cable to it
in the directory root-3.2.1/Image I run the command
nvflash --bct flash.bct --setbct --odmdata 0x100c0105 --configfile flash.cfg --create --bl bootloader.bin --sbk (your sbk number after converting your UID number) 0xXXXXXXXX 0xXXXXXXXX 0xXXXXXXXX 0xXXXXXXXX --go
without rebooting, I flashed the v7 bootloader and recovery as per the bootloader thread; since the partition table was restored at the previous step, the operation now succeeded;
I rebooted the tablet in recovery, and proceeded to wipe the data and flash a ROM the usual way.
Click to expand...
Click to collapse
This will reset your tablet to the HC ROM, HC bootloader and (I believe) Flash a custom recovery. If you are wanting to flash 4.2 or 4.1 though, you are going to want your ICS boot loader back, so just follow the instructions in this post to get an unlocker version and it should work. Also I was having trouble getting my CPUID after I reset my tablet back to HC, but I went ahead and tried the method in the post using the same SKB and it worked.
Good luck

Thanks for the tips man, its awesome

Great guide, worked perfectly to install this rom http://forum.xda-developers.com/showthread.php?t=2239476 :good:
Thanks

dibb_nz said:
here is a guide and some pix so you can see what 'should' happen when using civato's nvFlash manual method.
Get yr 15 digit CPUID - not your 11/13 digit ICS serial no.
the correct uid is VITAL, using the wrong one can cause you problems.
all righty you've made the decision to flash the patched bootloader and install a custom recovery and one of the many custom ICS/JB roms -
1. Ensure both Acer and adb drivers are installed
2. Retrieve HC CPUID
3. Generate your SBK from Blackthund3rs site: http://a500bootloaderflash.tk/sbkcalc/
4. Download yr ROM of choice and put it on yr external sd card
5. Put your tab in APX Mode manually or with apxFlashTool
6. Flash the Bootloader/Custom Recovery
7. Reboot to Custom recovery and do a full data wipe/format
8. Flash your chosen ICS/JB ROM
9. For good measure reboot to recovery and do another full wipe
10. Reboot and enjoy ICS/Jellybean
nb: I know it sounds overkill for all these data wipes/formats but in my experiences and alot of others on here multiple wipes ensure a smooth
running rom
Prep Work
To enter APX mode - Turn your tab off then press and hold in the Reset button(with paper clip).
Do not release it.
Press and hold power for 3 secs and then release it.
After another second, release the reset button.
Download V8-UNL-ICS-HC-bootloader-MULTI-cwm and extract the files for the manual nvFlash
If you are coming from HC then d/l your ICS/JB rom of choice to yr ext sdcard
WARNING: at Step 7. Do not "press any key to continue..." UNLESS yr tab is in bootloader mode, doing so causes alot more issues and
necessitates a rollback to HC if you continue....
*****************************************************
ok here we go:
Step 1. You must enter APXMode FIRST
Your Windows PC should then detect your device and install the APX driver. You should then have an APX USB device installed.
If you do not have an APX USB device listed in your system tray, you cannot proceed.
The screen of your tablet is black and the Power Light is ON
Step 2. Once yr tabs screen has turned black and the power lite is on then
Step 3. Right click on the v8.bat file from civs package and choose "Edit"
Go thru the file and remove any "Cls" lines if there are any - this allows you to see what the flash is doing.
Save the changes thenRun the bat file - i'm using V6-3.bat in this example but if you are using v8 it will be named v8.bat
NOTE: You will see an instruction on the opening screen to "delete recovery from boot.p file"
On a reboot, this file overwrites your newly flashed custom recovery with the Acer Stock Recovery, not what we want!!
Please check /system for the boot.p file - if its there then delete or rename it b4 going on
Step 4. Enter your SBK
Step 5. Your tab will display this - "System Information" Screen
Here you can see clearly your one and only cpuid!!!! Or 'chip uid' as it is named here.
Warning: If this system info is not displayed you run the risk of getting stuck in apx mode....
Close out of the command window and disconnect your USB and check yr SBK and/or the Acer USB Driver is showing in your "Safely remove hardware" icon
if it isnt reinstall the Acer Drivers
Step 6. All systems are go!! Go ahead and press any key...when your tab is in bootloader mode
7. WAIT for your tab to display "Acer Iconiaa500 APX Mode"
this is 'bootloader mode' where the flash needs to take place,
then press any key...
if you carry on without yr tab showing this message...
then you will softbrick and to fix that you will need to downgrade to HC and
you will lose all your data
There are 'usually' only 3 reasons you will not see the "Acer Iconia a500 APX Mode" message
1. The Drivers are failing to install correctly
2. Incorrect cpuid
3. Getting stuck at Formatting/partition errors is the ".bct issue" apxFlashTool 0.4 fixes this
Step 8 the flash begins!!!
the flash will take about 30 secs at most
on your tab you will see in big white letters the word PASS
in smaller red letters "Reboot the Device"
So power down yr tab and reboot into your new recovery and backup your system then flash your ICS/Jellybean Rom.
Congratulations you are no longer a chicken
EDIT: I've tried not to put too much info in here to keep things relatively easy to read - if you think there is info that should be in here just let me know and I'll add it
Click to expand...
Click to collapse
Is there any cure for being "stuck in APX mode"?

[Q] Problem loading custom ROM to A501

Hi,
So I thought I'd explore the world of custom ROMs on my Acer Iconia A501, which was previously on ICS. I used the A500APXFlash application to flash the tablet and managed to install CWM. Stupidly, I downloaded the Evil Alex II patch instead of the full ROM (just didn't realise), and wondered why it wouldn't boot. Finally when I realised what I'd done, re-did all the wipes, reformatted system & flexrom, and tried to install the full ROM, it did work briefly, but the Wifi crashed out (wouldn't respond) and I was getting a bunch of errors on google apps and google play, so I decided to reboot and ended up back stuck on the "Booting primary kernel image" screen. I've since made a few attempts to reinstall the ROM and even re-flash, but couldn't get anything different to happen.
I finally decided to roll back to a stock ROM, in case my initial mistake of trying to install the patch only had corrupted something. I could only get this working via the EUU packag, but this managed to get me back to Honeycomb and all seemed ok. So I thought perhaps I'd try I flashing again and then installed the root package which seemed to go fine. Then I tried the custom ROM again - no luck. Constantly stuck on that damn "Booting primary kernel image" screen.
I've watched a couple of video tutorials on flashing and installing a custom ROM to the A501 and I'm certain I've followed all the steps correctly. I've checked the forums and mostly this seems to be solved by reflashing and/or reinstalling the ROM, which I've done more times than I can count. Short of going back to the Honeycomb stock ROM (or maybe getting to an ICS ROM somehow), I've no idea what else to try. Can anyone help?

I think you should try to wipe the tab properly. Boot into cwm.
Under backup and restore activate toggle... of internal memory or similar
Go under Wipe menu and wipe cache, dalvik and battery stats, and wipe userdata.
Under Mounts and storage format system three!!! times and then format flexrom.
Flash your rom.
Gesendet von meinem A501 mit Tapatalk 2

OK, so I have tried toggling the wipe of internal memory a few times before, and it never made a difference. I'd never tried formatting system multiple times (I assume that's the only bit that I needed to do three times). In any case, I followed your steps and no luck. Still "booting primary kernel image". Thanks for trying. Happy to try almost anything at this point, as long as it doesn't brick it.
I don't need to mount system or flexrom before or after formatting right? I'm assuming not, cause nothing has ever said to, and I don't think doing it before would make a difference. After maybe...

nik592 said:
......Happy to try almost anything at this point, as long as it doesn't brick it/QUOTE]
Lets hope u haven't already......
Honeycomb stock is unrootable and therefore unflashable.....d/l timmydeans v4 euu
http://www.mediafire.com/download.php?fo4wqjeald4s3rj ...run it as per instructions in the PDF....
You won't have 3g for the moment but u will get cwm and root. From there u should be able to reflash the unlocked bootloader if u wish...
You may have some luck with the update.zip method check out
JdgM3NT4L.s easy way to stock thread in General for d/l links.....I think tho u best go with tdv4.....to reset yr system....
Sent from my A500 using Tapatalk 2
Edit: replaced link to tdv4
Click to expand...
Click to collapse

So that file you linked didn't have any PDF, just looked like a ROM, so I tried the update.zip method with a stock ROM I already had instead (which I had tried once before without success). The first time, still stuck on booting primary kernel. So I tried a different ROM. That one came to the Skrilax_CZ Bootloader screen, told me it was applying the update, which then failed, and then everything went wrong. Now nothing works. I can get into APX mode, but no longer have CWM. My googling finally brought me to another thread where I found the zip for timmydean's v4 euu but it won't complete. I had used another EUU package last night (possibly the same one), but it similarly won't complete.
So now I'm beginning to worry that it really is bricked. Thanks for your help, but I'm guessing I might be out of options.

nik592 said:
So that file you linked didn't have any PDF,
Click to expand...
Click to collapse
I'm so sorry bout that, I've edited the post with the correct link...
so I tried the update.zip method with a stock ROM I already had instead (which I had tried once before without success).
Click to expand...
Click to collapse
I'm not sure I understand wot u have done Here.....more info please
U cannot run the update.zip with a rom??? Could u explain.....unless u mean u ran a "stock update.zip"
The first time, still stuck on booting primary kernel. So I tried a different ROM.
Click to expand...
Click to collapse
His did u "try a different rom "?
If the update.zip worked u would have stock recovery and be unable to 'flash ' a rom unless
the update.zip didn't work and u still had yr original custom recovery???
That one came to the Skrilax_CZ Bootloader screen,
Click to expand...
Click to collapse
Again, to get this screen u must have flashed the unlocked bootloader somehow....more confused?
told me it was applying the update, which then failed, and then everything went wrong.
Click to expand...
Click to collapse
Yr tab said this??
Yes this would be where everything went even more haywire.....if u did have the patched bootloader with an incompatible rom and then flashed an update.zip as Wells.
then yr poor tab wouldn't know whether it was Arthur or martha
nothing works. I can get into APX mode, but no longer have CWM. My googling finally brought me to another thread where I found the zip for timmydean's v4 euu but it won't complete. I had used another EUU package last night (possibly the same one), but it similarly won't complete.
Click to expand...
Click to collapse
OK when u day it won't complete. What error are u seeing??
If u press pwr and volume down do u see the dead android with yellow exclamation point
What about pwr and volume up....anything with that combo???, if nothing, then do a complete hard reset with the rocker switch method....then come back and tell me if it worked, tab should say erasing userdata/cache...don't do anything else in the meantime....
when u first applied the update.zip how did u do it?
Turn yr tab off....u need to save as much battery as possible...unless u can recharge, can u?? If you're stuck in apx mode u won't be able to.
now I'm beginning to worry that it really is bricked. Thanks for your help, but I'm guessing I might be out of options.
Click to expand...
Click to collapse
No not yet you're not, but it's not gonna be a kwik fix either....u need to be methodical and go thru things one step at a time
To be clear wot is the state of yr tab atm?
no cwm
won't boot
Black screen with power led on
Is this correct??
Sent from my A500 using Tapatalk 2

dibb_nz said:
I'm not sure I understand wot u have done Here.....more info please
U cannot run the update.zip with a rom??? Could u explain.....unless u mean u ran a "stock update.zip"
Click to expand...
Click to collapse
Yes, sorry. A stock update.zip. The first one didn't take, and I ended up back at the Scrilax_CZ bootloader screen, stuck on booting primary kernel (the same screen I've found myself at everytime I've tried to install a ROM).
dibb_nz said:
His did u "try a different rom "?
If the update.zip worked u would have stock recovery and be unable to 'flash ' a rom unless
the update.zip didn't work and u still had yr original custom recovery???
Again, to get this screen u must have flashed the unlocked bootloader somehow....more confused?
Yr tab said this??
Yes this would be where everything went even more haywire.....if u did have the patched bootloader with an incompatible rom and then flashed an update.zip as Wells.
then yr poor tab wouldn't know whether it was Arthur or martha
Click to expand...
Click to collapse
I went back into recovery mode and tried a different update.zip version, since the first one didn't seem to have worked. However, this time, instead of getting stuck on the booting primary kernel screen, it came to a screen which still had the bootloader message at the top, and then something about updating. My assumption was this is what happens after you correctly install a stock update.zip - that it may need to get out of the bootloader to wipe it fully, install the update.zip and then reboot again. What happened instead was the update told me it failed, at which point, I couldn't get back to the bootloader and it's stuck in APX mode.
dibb_nz said:
OK when u day it won't complete. What error are u seeing??
Click to expand...
Click to collapse
No error, it just sits there for over half an hour without the progress bar moving. I know it's supposed to take a while, but that seems too long.
dibb_nz said:
If u press pwr and volume down do u see the dead android with yellow exclamation point
What about pwr and volume up....anything with that combo???, if nothing, then do a complete hard reset with the rocker switch method....then come back and tell me if it worked, tab should say erasing userdata/cache...don't do anything else in the meantime....
Click to expand...
Click to collapse
Power and anything leads to nothing on screen. The power LED will come on, and it can detect APX mode so the EUU package can try and do it's thing, but it just hangs at the same point (judging by where the progress bar stops). What is the rocker switch method, I can't seem to find anything on it?
dibb_nz said:
when u first applied the update.zip how did u do it?
Click to expand...
Click to collapse
Put update.zip on an sd, go into recovery menu, wipe, install zip from sd, select update.zip, wait til it says complete, then reboot.
dibb_nz said:
Turn yr tab off....u need to save as much battery as possible...unless u can recharge, can u?? If you're stuck in apx mode u won't be able to.
Click to expand...
Click to collapse
Well, the tab has been off since I gave up on it last night, but also plugged into power. If I unplug it from power, I can power it down fully so the power LED goes off, but if I plug the cable back in the power LED comes back on. Which suggests it may be charging?
dibb_nz said:
No not yet you're not, but it's not gonna be a kwik fix either....u need to be methodical and go thru things one step at a time
To be clear wot is the state of yr tab atm?
no cwm
won't boot
Black screen with power led on
Is this correct??
Click to expand...
Click to collapse
Yes, no CWM, won't boot. Power on (with or without volume buttons) seems to bring it to APX mode - power LED on, black screen, detectable by the EUU package.

nik592 said:
Yes, no CWM, won't boot. Power on (with or without volume buttons) seems to bring it to APX mode - power LED on, black screen, detectable by the EUU package.
Click to expand...
Click to collapse
ok this is from another current thread....save me alot of typing
this is based on nvFlash and if windows detects it as u say, then u should be all good...then go to here and thank Danny2 for a great post..
btw when entering your sbk - no spaces and uppper case letters -
Danny2 said:
I had what looks like the exact problem, used BABSECTOR from here http://narod.ru/disk/53919831001.a235ea2225f319015f30c009629d2075/BabSector.rar.html and fixed my tab easily.
I edited the batch files by entering my sbk directly into them, (so I wouldn't have to retype & possibly make an error) but they worked for me. (To fix the same problem you have.)
Once you are able to write & format partitions again, you can follow various paths. The usually recommended path is TimmyDeans, or the HoneyComb 3.01 EUU from http://forum.xda-developers.com/showthread.php?t=1816560.
Both use the EUU method, both should work, Both take you back to HC, where you can follow the upgrade path on google play to get you back to stock 4.03. (It's a little more involved to get back to 4.03 with TimmyDeans.)
However, I found that I prefered to install this ROM http://forum.xda-developers.com/showthread.php?t=1969887 directly after running Babsector. Follow the directions exactly (including installing the correct bootloader) and you should be able to go from where you are now, (Only APX available) to a very nicely functionin ROM, in a lot!!!! less time than following the Stock upgrade path. (You
might make mistakes along the way, just start again, it will almost certainly work out.)
Coincidentally, this ROM will also give you OC, along with many other options, & is highly customizable, is still an ICS Rom, so doesn't suffer from the memory leak probs I believe affect all current versions of the hacked JB ROMS.
Click to expand...
Click to collapse

dibb_nz said:
ok this is from another current thread....save me alot of typing
this is based on nvFlash and if windows detects it as u say, then u should be all good...then go to here and thank Danny2 for a great post..
btw when entering your sbk - no spaces and uppper case letters -
Click to expand...
Click to collapse
No spaces? It wouldn't work when I tried with no spaces, and when I check the nvflash help, it shows the SBK argument as 4 separate blocks.
When I run the a501 A.bat with the normal spaces in my SBK I get this:
Code:
Enter your SBK:0x34F51E00 0xE4C3DB01 0x0B8A3F03 0xC0782103
Nvflash started
rcm version 0X20001
System Information:
chip name: t20
chip id: 0x20 major: 1 minor: 4
chip sku: 0x8
chip uid: 0x037c61c844406197
macrovision: disabled
hdcp: enabled
sbk burned: true
dk burned: true
boot device: emmc
operating mode: 4
device config strap: 0
device config fuse: 0
sdram config strap: 3
sending file: flash.bct
- 4080/4080 bytes sent
flash.bct sent successfully
odm data: 0xb00d8011
downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: bootloader.bin
| 714409/714409 bytes sent
bootloader.bin sent successfully
waiting for bootloader to initialize
bootloader downloaded successfully
setting device: 2 3
creating partition: BCT
creating partition: PT
creating partition: APP
creating partition: EBT
creating partition: GP1
creating partition: SOS
creating partition: LNX
creating partition: CAC
creating partition: MSC
creating partition: FLX
creating partition: AKB
creating partition: UDA
creating partition: GPT
failed executing command 12 NvError 0x120002
command failure: create failed (bad data)
bootloader status: fatal failure to read / write to mass storage (code: 9) message: nverror:0x8 (0x19000008) flags: 0
Press any key to continue . . .
I tried it a couple of times, same every time. From what I can find on forums about this error, this pretty much is bricked and needs to be sent back to Acer for repair?

nik592 said:
No spaces? It wouldn't work when I tried with no spaces, and when I check the nvflash help, it shows the SBK argument as 4 separate blocks.
When I run the a501 A.bat with the normal spaces in my SBK I get this:
Code:
Enter your SBK:0x34F51E00 0xE4C3DB01 0x0B8A3F03 0xC0782103
Nvflash started
rcm version 0X20001
System Information:
chip name: t20
chip id: 0x20 major: 1 minor: 4
chip sku: 0x8
chip uid: 0x037c61c844406197
macrovision: disabled
hdcp: enabled
sbk burned: true
dk burned: true
boot device: emmc
operating mode: 4
device config strap: 0
device config fuse: 0
sdram config strap: 3
sending file: flash.bct
- 4080/4080 bytes sent
flash.bct sent successfully
odm data: 0xb00d8011
downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: bootloader.bin
| 714409/714409 bytes sent
bootloader.bin sent successfully
waiting for bootloader to initialize
bootloader downloaded successfully
setting device: 2 3
creating partition: BCT
creating partition: PT
creating partition: APP
creating partition: EBT
creating partition: GP1
creating partition: SOS
creating partition: LNX
creating partition: CAC
creating partition: MSC
creating partition: FLX
creating partition: AKB
creating partition: UDA
creating partition: GPT
failed executing command 12 NvError 0x120002
command failure: create failed (bad data)
bootloader status: fatal failure to read / write to mass storage (code: 9) message: nverror:0x8 (0x19000008) flags: 0
Press any key to continue . . .
I tried it a couple of times, same every time. From what I can find on forums about this error, this pretty much is bricked and needs to be sent back to Acer for repair?
Click to expand...
Click to collapse
yup its looking that way I'm sorry to say
sorry didnt expklain the no-spaces very well at all
some folk have had issues entering their cpuid into the sbk generator - they have by mistake copy/pasted an empty space with their cpuid which the generator recognises as a "character"
the format for your sbk is 4 sets of hex values that should look like this "0x22222222 0x11111111 0x000AAZZZ 0x00000AAA"
apologies for the ambiguity
Sent from my GT-I9300 using Tapatalk 2

So, a few weeks later and with a friend who had successfully rooted his phone, we tried one last time to fix it. For some reason, the tablet decided to boot into a Honeycomb (3.2) A501 ROM (without us doing much to it), so clearly something took, possibly from a few weeks back (not sure why it chose not to work then, but whatever).
So, I followed steps to downgrade to 3.0.1 and root, then ran blackthund3r's APX flasher to reinstall Clockwork Mod, which also took nicely. Then I carefully followed the steps to install the Evil Alex ROM (and made sure I downloaded the actual ROM this time and not the patch). Again, this all went fine, until I rebooted. At this point, it got to the ANDROID logo screen, but got stuck there. After about 10-15 minutes, I decided to reboot again - same behaviour. So I went back in to CWM, followed the steps above to perform all wipes, format system 3 times, then format flexrom again, reinstall the ROM. Now it gets stuck on the Skrilax_CZ's bootloader screen with "Booting primary kernel image" screen. I can still happily get into CWM, but I'm at a loss what else to try.
The only difference in what I did between the first install of the ROM (where it got to the ANDROID logo screen but no further) and the second was to remove the SD card after installing the ROM (before rebooting). Well, apart from also formatting system 3 times as mentioned above. I'm assuming removing the SD card or not shouldn't make a difference since the ROM should be installed by that point anyway.
Any thoughts?

[GUIDE][ICS] Beginners Guide - Rooting, Flashing, Unbricking

Post 1: Rooting, Flashing:
- To install an ICS or JB rom you NEED skrilax_cz unlocked bootloader
- Flashing the skrilax_cz bootloader and custom recovery
- Updating or Flashing a different recovery
- ics root methods
Post 2: How to use an update.zip Method
- Fix "Stuck on Acer Logo"
- Revert to stock
Post 3:How to unbrick your Tab...nvFlash Method
- Fix "nvFlash partition errors" with "babsector.rar"
- timmydeans EUU root tool- Repairing "Stuck in apx mode"
- Running nvFlash from the command line
- Archived nvFlash files and original threads
- How to use fastboot
Please read carefully and thoroughly all the steps before you start...if something is not clear then feel free to ask...its easy to softbrick your tab and not as easy to unbrick it...
You will need your CPUID - this cannot be said enough!!! Please do not attempt any flashing until you have a copy of it stored safely!!!
Bear in mind - installing custom roms and a recovery IS NOT DONE the same way as on your phone or other android device!!!
You must install the "skrilax_cz unlocked v8 bootloader" to install a custom rom/recovery
There is alot that can go wrong and you will need to follow the directions to the letter.
If you are stuck with the acer logo on boot or faced with a dead android or a recovery verified failed, when booting to recovery
then you have not followed the correct procedure and at the very best will need to do this all over again.
Before you go any further and while you can still boot into your tab - please retrieve your CPUID - see my guide here
Summary of Steps to flashing the skrilax_cz unlocked bootloader and custom recovery using nvFlash
Step 1. Install the Acer Drivers here and the USB drivers from the Android SDK here
Step 2. Retrieve your CPUID
then head to blackthund3rs site to generate your sbk
dibb_nz said:
How To Retrieve Your CPUID
Gersma's AfterOTA Lite retrieves all your ID's and saves them to a text file get it here
From a working system in /sys/firmware/fuse/acer_cpuid
Click to expand...
Click to collapse
Step 3. If you are running factory stock - you will need to rename or delete "the boot.p file" in /system to prevent your custom recovery being overwritten
- Use blackthund3rs ICSRoot here which will rename "the boot.p file" for you
- Have your Custom Rom downloaded and copied to your External SD Card ready to install immediatelyafter flashing skrilax's patched bootloader
- You are now ready to proceed with the "installation" you will also be asked to choose a Custom Recovery (CWM, TWRP,or Public)
Step 4. There are a couple of ways of doing this, manually or with one of the Auto Tools
- civato's manual nvFlash download and Guide and a walkthrough here
- Download gersma's afterOTA Tool if you have OTA'ed to ICS
- Download blackthund3rs apxFlash Tool and a walkthrough here
Step 5.To Manually Enter APX Mode
To get into APX mode, power off the tab.
Then, press the reset button (use a paper clip).
While still holding reset, hold power for 3 seconds.
Then, release power. Release reset after 1 more second.
The screen will be blank, but you are in APX mode (the power light should be on).
Click to expand...
Click to collapse
Once the flash is complete, boot directly to Recovery, Do a Wipe and Format and install your Rom!!
Moscow Desire said:
When you boot to CWM Recovery, you have a menu item "Wipes"
In Wipes;
1. Data/Factory Reset (don't worry, it skips your photos and such)
2. Cache
3. Dalvik Cache
Wait, you're not finished.
Go back to the previous menu, and select "Mounts and Storage".
1. Format System
2. Format Flexrom
Click to expand...
Click to collapse
NOTE: You may need to do a FULL WIPE AND FORMAT - to do this, enter recovery
Click to expand...
Click to collapse
In CWM select "Backup and Restore"
click on "Toggle backup and restore of internal storage (/data/media)"
should say enabled....
from the main menu select "Mounts and Storage" and "format /data"
this will REALLY format data and all your data and settings will be lost.
Click to expand...
Click to collapse
I have the unlocked bootloader: how do I update or change my recovery?
Only a few custom recovery's are compatable with ICS Custom roms, I've attached these to this post and they need to flashed via fastboot
Via Recovery:
There are some flashable zips around so copy the zip to your external sd or flash drive
boot to recovery and choose:
Install from zip option
Navigate to the zip and flash!!
Via fastboot see Post 3 for using fastboot
Use Acer Recovery Installer from the playstore
Please note again this is only possible with the unlocked bootloader
I'm on a stock rom, How do I root, I don't want a custom rom or recovery?
If you're happy with Acers Stock Rom?? and just want root, there are a couple of options:
blackthund3rs icsRoot.zip in Step 3 above - extract and run the .exe...Done
Original thread [ROOT] Stock ICS Leak One-Click Root Tool
For those wanting to root manually ZeroNull's method Full root for A50x ICS 4.0.3[LEAK]. Simple method.
_______________________________________________________________________________________________
if links arent working or you think something needs to be added or changed
please pm me...
if you're having troubles feel free to ask, I'll do my best to help
...thanx all

When Things Go Bad....How to unbrick
Download Links to Unbrick your Tab
1. update.zip method using HC 3.1_Full_Update.zip
Notes on use:
- rename the zip to "update.zip" and flash either using cwm or "pwr/volume down"
- you can flash the v8 bootloader from HC 3.1 if you want to ---
- You can restore a nandroid backup or flash an HC rom from here too, first you need to rootby installing iconiaroot then flash a custom recovery using Acer Recovery Installer
- oh how easy it all was on HC 3.1
- es File Explorer download here
Use this update.zip for any of the following:
- You do not have your cpuid
- You are stuck on the "Acer" Logo
- Your tab boots past the Acer Logo but then boot loops at the boot animation
- You are on the old HC bootloader /ICS Rom combination
- You wish to return to factory stock, and OTA all the way to Stock ICS
You CANNOT use the update.zip method if:
- You are stuck in apx mode
- You have unsuccessfully nvflashed skrilax_cz unlocked bootloader or timmydeans root tool-tdv4
- You have boot verified failed error
(Please see the EUU/nvFlash Method below to repair these issues)
HC 3.1 FULL_update.zip
************************************************************
2. nvFlash/apx/EUU method
you MUST use this if:
- the update.zip has not worked for you
- you do not have an external sd_card
- flashing the unlocked bootloader has failed
- your partitions are screwed up
timmydeans root tool -tdv4- will reset partitions, and downgrades you to a pre-rooted HC3.2.1 with cwm 1.7
To Downgrade using tdv4:
1. Do not connect your tab to your pc
2. Run the tool till you see the window telling you to put yr tab in apxmode
3. Put your tab in MANUAL apx mode using the button combo
4. Connect your tab to your pc now
5. Let the tool continue - you should see the big white PASS when its done!
***********************
BABSECTOR.RAR
***********************
***********************
babsector.rar download here - will reset partitions when tdv4 will not work for some reason
How to use babsector -
Turn your tab off and put it in apx mode manually. Press and hold reset button, hold power for 3 secs after the light comes on and release it, after another second release the reset button. Your screen is black and the power light is on.
On your PC:
Download and extract the .rar to a folder on your PC
Connect your tab to your PC
Navigate to the babsector folder and click on 501 A.bat
On your tab:
Reboot into recovery power/volume DOWN - (closest end to the power button)
Go to Mounts and Storage Menu and
Format - System, Data, Flexrom, Cache
Then flash your ICS/JB rom, power off.
Go back into apx mode and run 501 B.bat
Reboot into recovery and do the wipes
Reboot!!!
Click to expand...
Click to collapse
Official Acer a500 EUU 3.0.1 EUUs_SBK_Acer_A500_1.016.05_COM_GEN1.rar
3. Stuck with Black Screen and Power LED Light is on
This can happen "just like that" for no particular reason or after an OTA - if this is the case, its more than likely caused by a faulty memory chip on the motherboard - the ONLY fix for this is a replacement m/b from Acer..
Most likely though it happens by trying to flash a recovery or bootloader via Custom Recovery or a Rom Manager or Acer Recovery Installer - the first time bootloader flash must be done using nvFlash - OR if you've tried to flash BEFORE your tab has entered "Acer Download Mode" as displayed on your tabs screen
If you are using one of the auto flash tools and the tool seems to get somewhere - do not carry on -
1. use "safely remove hardware" icon in the PC system tray to eject the "APX Device"
1a. if there is no apx device listed here - then you need to install the drivers correctly then try the flash again...
2. next close the tool down and disconnect the usb cable
3. reboot both tab and PC
4. Once you;re back in windows connect your usb cable to your tab
5 Check the Acer-Picasso boot/recovery driver has installed
6. Proceed with the flash again

Getting out of APX Mode
If worse comes to worse and you are definitely stuck in APX Mode then download the archived file nvFlash.zip which will only flash the v2 unlocked bootloader - to flash a recovery image you'll need to download one and copy it to the nvflash folder.
1) extract "nvFlash" to C:\nvflash
2) pwr your tab OFF and ensure the Pwr LED lite is off
3) Manually put your tab in APX Mode
4) Connect your micro usb cable to your PC
5) Ensure your PC lists an "apx device"
6) Open a command prompt on C:\nvflash
7) Follow the steps below from vache:
vache said:
launch this to load bootloader :
Code:
nvflash --bct bct.bct --setbct --bl bootloader.bin --configfile flash.cfg --odmdata 0x300d8011 --sbk [B]MYSKB[/B] --sync
Of course, change MYSBK with yours.
Next, flash the bootloader :
Code:
nvflash -r --format_partition 4
nvflash -r --download 4 bootloader.bin
If you want to flash a recovery :
Code:
nvflash -r --format_partition 6
nvflash -r --download 6 myrecovery.img
or a new boot :
Code:
nvflash -r --format_partition 7
nvflash -r --download 6 myboot.img
To leave APX mode :
Code:
nvflash -r --go
Click to expand...
Click to collapse
Archived Files:
These files are the ones civato packaged for the "v8 unlocked bootlader.zip"
Original nvFlash zip files from "vache" and
"strra's" original batch file with the v2 bootloader from "skrilax_cz" & cwm 1.7.2 -
and the original nvFlash guide from jm77 from this thread
How to use fastboot
Fastboot works the same as adb by issuing commands from your PC
1. Put your tab in Fastboot Mode - Hold down the Volume UP button and press power button until your tab vibrates
2. Choose fastboot mode from the menu
3. Hook your tab to your PC
4. On your PC navigate to the folder where fastboot.exe/adb.exe are located
5. Open a command prompt on this folder
Run the following commands
Code:
fastboot devices
it should return a ?
To perform a Hard Reset or FULL WIPE your device
then type in:
Code:
fastboot erase userdata
fastboot erase cache
fastboot reboot
To flash a "recovery.img"
You'll need an actual recovery.img for this one, I've attached a couple to this post
These can be found in the unlocked bootloader packages
Copy "name_of_your_new_recovery.img" to your fastboot/adb folder
Hook up your PC and on your tab enter fastboot mode
Issue these commands"
Code:
fastboot devices
it should return a ?
Code:
fastboot flash recovery name_of_your_new_recovery.img
should say Done
Code:
fastboot reboot
quickly hold in the volume down button while it reboots - if you time it right it should boot to recovery...otherwise just power it down then try again
Thanks go to civato, blackthund3r, skrilax_cz, gersma, vache, strra, sp3dev

Hi
I have my A500 rooted. I DO have my CPUID and SBK
When I tried to flash unlocked bootloader with Blackthund3rs' program, it stucked on Stage 2.
I think I did the Babsector
Run a501 A.bat, but unable to Run a501 B. (unable to get in to APX mode for some reason)
then I used afterOTA (standard method)
Somehow I got the CWM Recovery 1.7.3 on the tab, some Error message when I am in the Recovery.
When I do the wipe and format following this: (from TegraOwner site)
"here's how to:
go to in recovery enter "Backup and Restore" and click on "Toggle backup and restore of internal storage (/data/media)"
should say enabled....
then go into "Mounts and Storage" and "format /data"
I get this:
Backup and Restore /data/media: Enabled
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:Can't mount /cache/recovery/last_log
E:Can't open /cache/recovery/last_log
Formatting /data...
E:format_volume: make_extf4fs failed on /dev/block/mmcblk0p8
Error formating /data!
I am unable to flash the V170, or any other ICS ROM (encryption unsuccessful...)
Able to flash the JB V20, but only with about 60 MB left on the internal storage (I have the 8GB unit), unable to install any apps, only thing I can do is surfing internet.
The Storage under Setting shows:
Internal Storage: total space 0.00B
Micro SD CARD: total space 29.71GB
But when I press the Gallery or camera, it says No Storage, No external storage available.
Do you have any idea about what's going on with my tab? What should I do next?
Thanks
---------- Post added at 02:23 PM ---------- Previous post was at 01:50 PM ----------
Hi
I have my A500 rooted. I DO have my CPUID and SBK
When I tried to flash unlocked bootloader with Blackthund3rs' program, it stucked on Stage 2.
I think I did the Babsector
Run a501 A.bat, but unable to Run a501 B.bat (unable to get in to APX mode for some reason)
then I used afterOTA (standard method)
Somehow I got the CWM Recovery 1.7.3 on the tab, some Error message when I am in the Recovery.
When I do the wipe and format following this: (from TegraOwner site)
"here's how to:
go to in recovery enter "Backup and Restore" and click on "Toggle backup and restore of internal storage (/data/media)"
should say enabled....
then go into "Mounts and Storage" and "format /data"
I get this:
Backup and Restore /data/media: Enabled
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:Can't mount /cache/recovery/last_log
E:Can't open /cache/recovery/last_log
Formatting /data...
E:format_volume: make_extf4fs failed on /dev/block/mmcblk0p8
Error formating /data!
I am unable to flash the V170, or any other ICS ROM (encryption unsuccessful...)
Able to flash the JB V20, but only with about 60 MB left on the internal storage (I have the 8GB unit), unable to install any apps, only thing I can do is surfing internet.
The Storage under Setting shows:
Internal Storage: total space 0.00B
Micro SD CARD: total space 29.71GB
But when I press the Gallery or camera, it says No Storage, No external storage available.
Do you have any idea about what's going on with my tab? What should I do next?
Thanks

appple said:
Hi
I have my A500 rooted. I DO have my CPUID and SBK
Click to expand...
Click to collapse
good:good::good:
When I tried to flash unlocked bootloader with Blackthund3rs' program, it stucked on Stage 2.
Click to expand...
Click to collapse
theres a couple of different errors you can get at "stage 2" uploading image, ebt, bct or partitioning - did u see which one?
I think I did the Babsector Run a501 A.bat, but unable to Run a501 B. (unable to get in to APX mode for some reason)
Click to expand...
Click to collapse
you could have tried putting yr tab in apx mode manually and to check an "apx device" is listed...if its not its a driver issue
then I used afterOTA (standard method)
Click to expand...
Click to collapse
I assume you were running stock OTA ICS??
Somehow I got the CWM Recovery 1.7.3 on the tab, some Error message when I am in the Recovery
Click to expand...
Click to collapse
thats weird - didnt think afterOTA came with 1.7.3 - i may be wrong tho'
When I do the wipe and format following this: (from TegraOwner site)
"here's how to:
go to in recovery enter "Backup and Restore" and click on "Toggle backup and restore of internal storage (/data/media)"
should say enabled....
then go into "Mounts and Storage" and "format /data"
I get this:
Backup and Restore /data/media: Enabled
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:Can't mount /cache/recovery/last_log
E:Can't open /cache/recovery/last_log
Formatting /data...
E:format_volume: make_extf4fs failed on /dev/block/mmcblk0p8
Error formating /data!
Click to expand...
Click to collapse
eewwww thats ugly!!!
Do you still have the unlocked bootloader???
You may need to boot into fastboot mode (pwr-vol+) and
Code:
fastboot erase /cache
fastboot erase /userdata
fastboot reboot
I am unable to flash the V170, or any other ICS ROM (encryption unsuccessful...)Able to flash the JB V20, but only with about 60 MB left on the internal storage (I have the 8GB unit), unable to install any apps, only thing I can do is surfing internet.
Click to expand...
Click to collapse
Not sure I can help with tegra-owners JB rom - I know it doesnt require the unlocked BL - but there've been a few folks on here that have had issues with it (myself included) not sure why and didn't spend alot of time trying to figure it out - I just reflashed the CM10 JB rom of civato's
The Storage under Setting shows:
Internal Storage: total space 0.00B
Micro SD CARD: total space 29.71GB
But when I press the Gallery or camera, it says No Storage, No external storage available.
Do you have any idea about what's going on with my tab? What should I do next?
Thanks
Click to expand...
Click to collapse
The main thing is to get everything fastboot erased first and see how that goes...its looking like a partitioning error at this point....
and be helpful to know what rom etc you had on there in the first place!
rgds
dibb

theres a couple of different errors you can get at "stage 2" uploading image, ebt, bct or partitioning - did u see which one?
Click to expand...
Click to collapse
Here is what I wrote a while ago on the TO site:
I am trying to use you APX Flash tool to patch the Bootloader. (using Civato's guide on the Xda forum)
It hung at "Flashing Bootloader (EBT) stage two - uploading image..." and the other black command prompt window shows : Nvflash started [resume mode]
I, then, re-booted the A500, re-installed the Acer USB driver (used Acer link from A500 Manager)
Same as above.
Now I tried use the manual flash following Civato's guide, I got:
Nvflash started
[resume mode]
Formatting partition 4 please wait.. Command execution failed cmd 13, error 0x120002 Failed!
Command failure: format partition failed <bad command>
bootloader status: unknown operation <code: 1> message: flags: 0
Nvflash started
[resume mode]
you could have tried putting yr tab in apx mode manually and to check an "apx device" is listed...if its not its a driver issue
Click to expand...
Click to collapse
I was using apxFlash tool, could not get it into the apex mode when I tried to run a501 B. Should I try to run it with the manual method now?
I assume you were running stock OTA ICS?
Click to expand...
Click to collapse
?
Yes, rooted, was trying to get unlocked boot loader, thought I need that to flash custom ROM
theres a couple of different errors you can get at "stage 2" uploading image, ebt, bct or partitioning - did u see which one
thats weird - didnt think afterOTA came with 1.7.3 - i may be wrong tho
Click to expand...
Click to collapse
'
I probably got it after I ran the a501 A.
eewwww thats ugly!!!
Do you still have the unlocked bootloader???
You may need to boot into fastboot mode (pwr-vol+) and
Code:
fastboot erase /cache
fastboot erase /userdata
fastboot reboot
Click to expand...
Click to collapse
Yes, I was wondering what is that fast boot mode does
The main thing is to get everything fastboot erased first and see how that goes...its looking like a partitioning error at this point....
and be helpful to know what rom etc you had on there in the first place!
Click to expand...
Click to collapse
Any step guide on how to do this (used the adb thing before to get the SDK, I think, but forgot how now)
I had ICS OTA before, started messing with the tab few months ago, on and off, sorry I could not remember exactly how I got here.
I am not newbie totally, just know enough to be dangerous
Dibb, thank very much for your help

What I have done so far:
Step 1: Did this and my computer can detect my Acer
Step 2: I installed AfterOTA from the link provided and extracted CPUID and SBK (my question: will I be using this anywhere in my flashing process as I dont see it, if so why did I take this?)
Step 3: Since I was nervous to delete that boot.p file right away I moved that into my SD card as backup and used blackthund3rs ICSRoot to root the tablet and succeeded.
- I haven't downloaded the ROM yet as I was looking for the best in the forum, so left this step for last
- I used afterOTA to "install the unlocked bootloader" which will also "flash a Custom Recovery" as advised by you in the email (Bootloader ICS v3.14.8 + Recover Thor v1.7.3)
My big question now is on flashing the custom ROM - am I going straight away from here to recovery mode and do the below as in your thread?
------------------------------------------------------------------------------------------------
When you boot to CWM Recovery, you have a menu item "Wipes"
In Wipes;
1. Data/Factory Reset (don't worry, it skips your photos and such)
2. Cache
3. Dalvik Cache
Wait, you're not finished.
Go back to the previous menu, and select "Mounts and Storage".
1. Format System
2. Format Flexrom
------------------------------------------------------------------------------------------------
thanks and cheers
Sany

How to use fastboot
@appple
1. K go up to Step 1 and d/l the android sdk drivers - (its not the whole sdk just the adb and fastboot drivers) and extract them to your C:\ drive...
2. With your tab powered off - hold the vol+ button down and press down pwr
2a. If you have the v8 bootloader your tab should display the fastboot menu
2b. Enter Fastboot Mode
3. Connect your tab to your pc with the micro usb cable
4. Open a command prompt from the folder that contains "fastboot.exe"
5. Type fastboot devices
6. It should return a "?" this is fine!
Now just enter the commands I posted earlier
7. fastboot erase userdate
8. fastboot erase cache
After you enter each command - the prompt should say 'Done'
9. fastboot reboot

sany said:
What I have done so far:
Step 1: Did this and my computer can detect my Acer
Step 2: I installed AfterOTA from the link provided and extracted CPUID and SBK (my question: will I be using this anywhere in my flashing process as I dont see it, if so why did I take this?)
Click to expand...
Click to collapse
afterOTA will do this behind the scenes
if u use apxFlash or nvFlash then yes you will need to enter yr sbk manually
if u need to use a rollback rom or official EUU Tool - you will need to enter your cpuid
Step 3: Since I was nervous to delete that boot.p file right away I moved that into my SD card as backup and used blackthund3rs ICSRoot to root the tablet and succeeded.
Click to expand...
Click to collapse
being nervous is ok - you normally need root before you move it as its a system file...so just go back and check /system again...you can rename it "....boot.p.old" if that makes u less nervous
- I haven't downloaded the ROM yet as I was looking for the best in the forum, so left this step for last
- I used afterOTA to "install the unlocked bootloader" which will also "flash a Custom Recovery" as advised by you in the email (Bootloader ICS v3.14.8 + Recover Thor v1.7.3)
My big question now is on flashing the custom ROM - am I going straight away from here to recovery mode and do the below as in your thread?
Click to expand...
Click to collapse
yes but I advise a Backup before you do....if anything goes awry at least you'll have that!!!
then flash your rom and reboot
As far as roms go - I've only ever used civato's ones so I'm not much help there, sorry - and I spend so much time 'bricking and unbricking' (research purposes of course!!) I don't really get alot of time just 'playing', lol...but I will say this - most of the custom roms on here are pretty damn good, they're well supported and stable....just check the last couple of pages of the rom thread itself...if theres any user issues at all, you'll find them there....oh and in the OP itself
best of luck m8!!!

dibb_nz said:
being nervous is ok - you normally need root before you move it as its a system file...so just go back and check /system again...you can rename it "....boot.p.old" if that makes u less nervous
Click to expand...
Click to collapse
Do you think I need to go and do this, as I have already rooted, and completed unlocked bootloader and recover via afterOTA, I might be renaming the one that came with the modified bootloader?
dibb_nz said:
yes but I advise a Backup before you do....if anything goes awry at least you'll have that!!!
Click to expand...
Click to collapse
How will I do this? sorry for pestering

sany said:
Do you think I need to go and do this, as I have already rooted, and completed unlocked bootloader and recover via afterOTA, I might be renaming the one that came with the modified bootloader?
Click to expand...
Click to collapse
its only required if you are flashing a Stock Rom - all of the custom roms are pr-rooted and this file has already been deleted...
If the file is in /system it will remove your newly flashed custom recovery and put back the Acer Stock Recovery {i.e. dead android on its back} if this happens you just need to flash the recovery again
How will I do this? sorry for pesteringhttp://forum.xda-developers.com/showthread.php?p=35675823#post35675823
Click to expand...
Click to collapse
thats ok, we were all new to this stuff at some stage
in the recovery menu you will see an option "backup and restore"
select it and then you will see another menu - select "Full Backup" and let it do its thing...
once its done go back to the main menu and select "Flash Zip from SD Card" then choose the zip of the rom.
Just a note:
In recovery menu your SD Card refers to your external sd card
Your Internal Memory of the Tab itself is called Internal Storage
dibb
heres a pic - its an older version of cwm but gives the general layout
I gotta get some sleep - will check back in the morning...dibb

dibb_nz said:
1. K go up to Step 1 and d/l the android sdk drivers - (its not the whole sdk just the adb and fastboot drivers) and extract them to your C:\ drive...
2. With your tab powered off - hold the vol+ button down and press down pwr
2a. If you have the v8 bootloader your tab should display the fastboot menu
2b. Enter Fastboot Mode
3. Connect your tab to your pc with the micro usb cable
4. Open a command prompt from the folder that contains "fastboot.exe"
5. Type fastboot devices
6. It should return a "?" this is fine!
Now just enter the commands I posted earlier
7. fastboot erase userdate
8. fastboot erase cache
After you enter each command - the prompt should say 'Done'
9. fastboot reboot
Click to expand...
Click to collapse
Hope you had good rest yesterday.
I will try to do this in next few days.
Do you know what the a500 B of Babsector do? Just wondering

appple said:
Do you know what the a500 B of Babsector do? Just wondering
Click to expand...
Click to collapse
sorry i'm not too familiar with this tool - I've never had to use it as timmydeans v4 has always worked for me...
From what I can gather, running the 1st bat files uses a different partition to flash cwm 1.7.3 so you can enter recovery and perform a format of /system.
In other words it seems 'resetting the partitions' (like timmydeans tool does) is not enough - you must then do a format of the system partition thru cwm and then run the b.bat to put the original partition table back on yr tab....
You will need to flash a rom directly after using it....formatting system will leave you without an OS but this is not mentioned in anything I've read - you can read more about it here
EDIT: found a good thread for you to read here explains how to use babsector
BTW i'm working the next 3 days so may not be around as much as i'd like....
will check in when i can
rgds dibb

Merry Christmas dibb
From what I can gather, running the 1st bat files uses a different partition to flash cwm 1.7.3 so you can enter recovery and perform a format of /system.
In other words it seems 'resetting the partitions' (like timmydeans tool does) is not enough - you must then do a format of the system partition thru cwm and then run the b.bat to put the original partition table back on yr tab....
You will need to flash a rom directly after using it....formatting system will leave you without an OS but this is not mentioned in anything I've read - you can read more about it here
Click to expand...
Click to collapse
You are right about this little tool, (I was the last poster in that thread when I got stuck before the A500 B zip)
EDIT: found a good thread for you to read here explains how to use babsector
Click to expand...
Click to collapse
I was almost ready to try the Fastboot thing you showed me earlier, then after I read this thread, I decided to give the Babsector one more try, using the manual method to get in APX mode per your guide (last time I used the blackthund3's tool), VOILA, it WORKED!! I flashed Civato's Flex-Resurrection_Rev1
and it's rocking (I stayed with 4.0.4 because I want to swap my internal(8GB) with an external (32GB)
h??p://forum.xda-developers.com/showthread.php?t=1445720 ), now going to do this, hope it will go smoothly.
BTW i'm working the next 3 days so may not be around as much as i'd like....
will check in when i can
Click to expand...
Click to collapse
Hope you did not have to work too hard, and enjoying your Christmas now.
Thanks again for your help.

@appple great news glad it worked
Sent from my GT-I9300 using Tapatalk 2

N00b trying to upgrade to ICS.
I have a acer iconia a501, There is no ics update here in Canada I believe. It currently has unrooted HC 3.2 kernal 2.6.36.3+ with a build number of Acer_A501_4.452.01_PA_ROG. some of the guides seem pretty long to me. I have tried to install android sdk, however it does not seem to function under windows 8. is there another way to do this?

Go to the bottom of this post and download adb_fast.zip - this is a mini sdk kit with just the drivers - you do have the acer drivers as well, yes?
there have been a couple of issues reported using win8, so try a different micro usb cable and a different usb port on your pc...the acer is very picky when it comes to cables...
If you have access to a linux machine you'll have no probs at all flashing the v8 bootloader

Thank you

Thank you Dibb for responding to me in the other thread. I've got the update downloaded from your post 2 and I have an external SD card to load it onto. Am I correct in thinking there's no connection required between my computer and tablet? I rename the file to update.zip, load it onto the SD card, put that in the tablet and use the power/volume- buttons correct?

Yeh u got it....I think the update.zip is good to go just copy it to yr ext sd. Best to do full wipe too m8 via Android settings...you'll be back to full stock so no custom anything....If it's the 3.1 zip u can take the ota to ics or flash the v8 unlocked bootloader from there, to get cwm...and a custom rom
Sent from my GT-I9300 using Tapatalk 2

[Q] Bricked a500- stuck on boot menu.

Yes I am a noob, but a noob in need of help.
I recently decided to root my Acer Iconia a500 16gb WIFI version, running on stock ICS. I realised i had to unlock my bootloader to install CWM etc. So I followed a tutorial, and used blackthund3rs A500 APX Flash Utility v0.4. I used the flash package "Skrilax_CZ's bootloader V8".
So I thought all was going well, however when rebooting it, it just sits on "Skrilax_CZ's bootloader V8: Booting primary kernel image". I'm assuming its bricked, as it doesn't go beyond this point. I can get a few other options by doing the "PWR+VOL" combination and it opens boot-menu mode with the options:
-Reboot
-Fastboot Mode
-Boot Primary Kernel Image
-Boot Secondary Kernel Image
-Boot Recovery
-Set Boot secondary Kernel Image
-Set debug mode off/on
-Wipe Cache
The only option that does the slytest thing is putting it in fastboot mode. When putting it in this mode, it registers in "A500MANAGER" (when connected to my pc via USB) as the device being in fastboot mode. But I dont know what to do from there.
I've looked at multiple threads and cant find anything to fix this problem.
Please Help! Thanks!

boxyJ said:
Yes I am a noob, but a noob in need of help.
I recently decided to root my Acer Iconia a500 16gb WIFI version, running on stock ICS. I realised i had to unlock my bootloader to install CWM etc. So I followed a tutorial, and used blackthund3rs A500 APX Flash Utility v0.4. I used the flash package "Skrilax_CZ's bootloader V8".
So I thought all was going well, however when rebooting it, it just sits on "Skrilax_CZ's bootloader V8: Booting primary kernel image". I'm assuming its bricked, as it doesn't go beyond this point. I can get a few other options by doing the "PWR+VOL" combination and it opens boot-menu mode with the options:
-Reboot
-Fastboot Mode
-Boot Primary Kernel Image
-Boot Secondary Kernel Image
-Boot Recovery
-Set Boot secondary Kernel Image
-Set debug mode off/on
-Wipe Cache
The only option that does the slytest thing is putting it in fastboot mode. When putting it in this mode, it registers in "A500MANAGER" (when connected to my pc via USB) as the device being in fastboot mode. But I dont know what to do from there.
I've looked at multiple threads and cant find anything to fix this problem.
Please Help! Thanks!
Click to expand...
Click to collapse
Sounds like the A500 manager didn't do something right. Happens sometimes.
Here is what I would do. I assume you don't have the Android SDK installed. No need to, as some of the bootloader/CWM packages have the necessary files needed.
1. Boot to the bootloader, select the option "Fastboot Mode"
2. Make sure you have downloaded to PC a CWM package for ICS/JB. Usually the manual packages have the necessary files, such as the CWM image, fastboot.exe, adb, and some dll files. Unzip them to your PC. (Also helps to download a custom ICS or CM10 rom to your sd card first)
3. Open a command window in the same folder you have the files.
4. type "fastboot flash recovery xxxxxxxx.img" (xxxxxxxx is name of cwm recovery img file, do not put the " in) then hit enter.
5. After completion, immediately boot tablet into recovery. I believe holding Vol- and PWR does this. Or, Vol+ and PWR boots to the bootloader menu. Either way.
In recovery, do your wipes and or formats as per ROM installation instructions.
Install ROM
Enjoy. If you have problems locating one of those packages, give a shout back.
MD

Thanks for the fast reply,
I am a noob, so could you perhaps link me a CWM package for ics to download?
Thanks

boxyJ said:
Thanks for the fast reply,
I am a noob, so could you perhaps link me a CWM package for ics to download?
Thanks
Click to expand...
Click to collapse
No problem. I'll post a link in awhile.
MD

Files
Ok, so here are your files.
Unzip the contents of the zip file to a folder on your PC
Boot your tab to the bootloader menu, select Fastboot.
Connect tab to PC, then wait 30 seconds or so (windows has to recognize it)
Then, go to that folder. Hold "Shift" + "Right Mouse Click".
Select "Open Command Window"
Type in the following;
fastboot flash recovery recovery_thor17_403.img
and hit enter. Should transfer good.
When finished, boot tablet to recovery like I mentioned earlier. DO NOT boot to the system. Or you'll be doing this all over again.
Install ICS or CM10 rom following the instructions on the ROM post. I suggest starting out with Civato's ICS Flex****** rom first, or one of the stock rooted ones.
Should be good...... I hope.
MD

Thanks again.
I did the fastboot recovery thing. But when I go to reboot, I have to turn it on and select "Boot Recovery", when I do its stuck on the screen "Skrilax_CZ's bootloader v8: Booting recovery kernel image"
Is this whats supposed to happen or am I supposed to see a different screen?

boxyJ said:
Thanks again.
I did the fastboot recovery thing. But when I go to reboot, I have to turn it on and select "Boot Recovery", when I do its stuck on the screen "Skrilax_CZ's bootloader v8: Booting recovery kernel image"
Is this whats supposed to happen or am I supposed to see a different screen?
Click to expand...
Click to collapse
Shut down the tab. Reboot holding V- and PWR release when you see the text. Should reboot to recovery.

If not, your partitions are probably hosed.
Then it's Timmy Deans Rollback tool time. Will have to turn you over to dibs_nz for that one.
MD

Moscow Desire said:
Shut down the tab. Reboot holding V- and PWR release when you see the text. Should reboot to recovery.
Click to expand...
Click to collapse
That brings me to the screen "Skrilax_Cz's bootloader V8: Booting recovery kernel image." But it doesn't go any further?

Well crap.
Sounds like some partitions are messed.
Try this NVFlash package;
http://d-h.st/32X
It's a version 3 bootloader using NVFlash. Might work.
Put your tab in APX mode (I believe you press and hold the pinhole reset, then PWR. After 3 seconds, release PWR, 2 seconds later release pinhole. Might have to reverse it, don't remember)
Plug tab in. PC should recognize.
Unzip to a folder, open a command window, and run the batch file (type it into the command window, xxxxxxxx.bat then hit enter)
If there's an error, it should show in the command window.
Here is a link to Timmy Deans roll back package;
http://d-h.st/0x7
The issue here, is you need a UID number, which I HOPE you wrote down when you did the V8 bootloader!
MD

Well I cant manually put it into APX mode, tried a few times. Also there is no bat file in that download... as for Timmy Deans roll back package, is it a simple method taht should work? At this point I just want to get my tab working again . And yes I do have my UID number.

Ok,ok.
So this morning I tried to fix it again. And I think i managed to put it in APX mode. Also, I started up APX flash tool and all, did that. Suddenly a cmd window opened and started doing stuff. And now the tablet says in the top right corner "Acer Iconia APX mode", and a yellow glowing 'acer' title in the middle (which is different from what I've been seeing). Another cmd window opened by itself saying "Nvflash started [resume mode]. Where do i go from here??
Thanks!

So I think I've gotten a better understanding of how this all works today. I've tried multiple ways of flashing recovery imgs ect, flashing the bootloader and all that stuff. And all the times I've done this, it always stops at "Nvflash started [resume mode]" and doesn't go any further.
So I'm not really sure what else there is to do.
Please, I need guidance. (below is my last attempt, and what It said in the cmd window).
Flashing bootloader: bootloader_v8.bin ...
Nvflash started
[resume mode]
Formatting partition 4 please wait.. Command Execution failed cmd 13, error 0x12
0002
FAILED!
command failure: format partition failed (bad command)
bootloader status: unknown operation (code: 1) message: flags: 0
Nvflash started
[resume mode]

Please let us know if/how you fixed this problem! Some of us are in the same boat.

timmytutone said:
Please let us know if/how you fixed this problem! Some of us are in the same boat.
Click to expand...
Click to collapse
U guys need to run the babsector.rar file to reset yr tabs partitions and you must have yr cpuid/sbk.
The file and instructions to use it are in post 2 of the root guide in my sig.
If u get any errors you must post the output. You may have a faulty memory chip. If that's the case, a new motherboard is the only fix.
dibb
Sent from my GT-I9300 using Tapatalk 4
EDIT: Link to post2 (babsector.rar file)
http://forum.xda-developers.com/showthread.php?p=35500589

dibb_nz said:
U guys need to run the babsector.rar file to reset yr tabs partitions and you must have yr cpuid/sbk.
The file and instructions to use it are in post 2 of the root guide in my sig.
If u get any errors you must post the output. You may have a faulty memory chip. If that's the case, a new motherboard is the only fix.
dibb
Sent from my GT-I9300 using Tapatalk 4
EDIT: Link to post2 (babsector.rar file)
http://forum.xda-developers.com/showthread.php?p=35500589
Click to expand...
Click to collapse
Thank you so much for the reply. I gave up this afternoon and just flashed the ota 4.0.3 version from Acer and it seems to be running really good. The only reason I was looking to flash something new is because the update from honeycomb to ics didn't take very well and I've always been dealing with problems from it. If the flashed version is still running well I might not try a different Rom again. I'll be putting your tip in my notes in case I do. Thanks again.

dibb_nz said:
U guys need to run the babsector.rar file to reset yr tabs partitions and you must have yr cpuid/sbk.
The file and instructions to use it are in post 2 of the root guide in my sig.
If u get any errors you must post the output. You may have a faulty memory chip. If that's the case, a new motherboard is the only fix.
dibb
Sent from my GT-I9300 using Tapatalk 4
EDIT: Link to post2 (babsector.rar file)
http://forum.xda-developers.com/showthread.php?p=35500589
Click to expand...
Click to collapse
So I rooted and then flashed a Custom Recovery Image. Then I followed the instructions under the babsector portion of your post. I got to this part: Go back into apx mode and run 501 B.bat, Reboot into recovery and do the wipes, Reboot!!!
I wasn't sure what "do the wipes" referred to so I did ALL the wipes. Cache/Dalvik/Battery/ and Data(?) When I rebooted it went back to the green screen and says in yellow: "Invalid primary (LNX) image." and has the same menu as when I rebooted after 501 A.bat
Now what?
EDIT:
So I was sitting there with the green screen/yellow error and decided to boot into recovery again. I then reflashed my custom rom, and did a normal reboot. Everything is working now! My FIRST custom rom after owning android devices since the ancient Motorola i1 way back in the day. I'd still like to know if what I did was right or what happened, so I can detail it in my instructions for my next custom rom project.

timmytutone said:
So I rooted and then flashed a Custom Recovery Image. Then I followed the instructions under the babsector portion of your post. I got to this part: Go back into apx mode and run 501 B.bat, Reboot into recovery and do the wipes, Reboot!!!
I wasn't sure what "do the wipes" referred to so I did ALL the wipes. Cache/Dalvik/Battery/ and Data(?) When I rebooted it went back to the green screen and says in yellow: "Invalid primary (LNX) image." and has the same menu as when I rebooted after 501 A.bat
Now what?
EDIT:
So I was sitting there with the green screen/yellow error and decided to boot into recovery again. I then reflashed my custom rom, and did a normal reboot. Everything is working now! My FIRST custom rom after owning android devices since the ancient Motorola i1 way back in the day. I'd still like to know if what I did was right or what happened, so I can detail it in my instructions for my next custom rom project.
Click to expand...
Click to collapse
Dude I know it's been 4 years since you wrote that but I just wanted to say you really saved my life, THANK YOU!!!
About 2 months ago I tried to unlock my tablet's bootloader but I gave up after reading different articles and obviously ended up with a really bad headache. Last night I realized Android 3 is really old and I almost can't install anything on it. So basically I gave it another shot and been reading and downloading different files for almost 3 hours. Today I managed to unlock bootloader and use your short instruction (more likely a walk-thru that how you fixed your problem) and it worked!!! I owe you man... I owe you
I even took it to so many different mobile centers about 3 weeks ago but they said its files are not anywhere/we can't do it/it's too risky/it's not possible deal with it

Happy to help!