Database Users

[Q] Nexus 4 Accidentally Formated (Not able to boot)

Hey,
For starters, xda has been VERY VERY helpful to me over the past few months and I thank everyone who has ever contributed to a question or a discussion I have read.
I have a google nexus 4, and i managed to format the whole phone while i was installing a new rom. Now i can boot into bootloader and CWM but there is no files on the /sdcard/ there so that i can flash the phone
I tried to use the feature "adb push", but it´s not permited as i cannot enable the USB debugging...
I tried these guidelines: http://forum.xda-developers.com/showthread.php?t=1754018 but they didn´t help.
My phone info is:
Fastboot Mode
Product_Name: mako
HW Version: rev_11
Bootloader_version: makoz101
Signing - Production
Secure boot - enabled
Look state: Unlocked
Any ideas or suggestions are welcome.
Thank You

Boot it to fastboot and flash factory image and you're good to go. You can find instructions in the General section.

andr0idfreak said:
Boot it to fastboot and flash factory image and you're good to go. You can find instructions in the General section.
Click to expand...
Click to collapse
Fastboot = Bootloader?
Flash Recovery image, this is what i´m unable to do.
I have tried many methods from the general section, any particular thread do you think is most helpful?
I really appreciate your answer.

You could connect the phone to a PC and use CWM to mount the SD card. Copy a CWM flashable rom (99% of custom roms) to the SD card, disconnect from the PC and use CWM to flash. Job done

madgibbon said:
You could connect the phone to a PC and use CWM to mount the SD card. Copy a CWM flashable rom (99% of custom roms) to the SD card, disconnect from the PC and use CWM to flash. Job done
Click to expand...
Click to collapse
In CWM i go to "Mounts and Storage" i see the list:
mount /system
unmount /data
mount /sdcard
format.....
If i press mount /sdcard the screen flashes and nothing happens still says the same "mount /sdcard/"
Any thoughts?

arifagic said:
In CWM i go to "Mounts and Storage" i see the list:
mount /system
unmount /data
mount /sdcard
format.....
If i press mount /sdcard the screen flashes and nothing happens still says the same "mount /sdcard/"
Any thoughts?
Click to expand...
Click to collapse
You cannot currently mount SD from recovery. Use adb to push the files you want to flash to your SD, then flash them in recovery.
adb push romname.zip /sdcard/

arifagic said:
Fastboot = Bootloader?
Flash Recovery image, this is what i´m unable to do.
I have tried many methods from the general section, any particular thread do you think is most helpful?
I really appreciate your answer.
Click to expand...
Click to collapse
Fatboot = Bootloader, yup! I would read this thread for detailed information.
http://forum.xda-developers.com/showthread.php?t=2010312
If you are not so comfortable with about, you can try out Wug's Nexus Root Toolkit (a bit riskier though) that I have used a couple of times to restore factory images, works fine.
madgibbon said:
You could connect the phone to a PC and use CWM to mount the SD card. Copy a CWM flashable rom (99% of custom roms) to the SD card, disconnect from the PC and use CWM to flash. Job done
Click to expand...
Click to collapse
This is the most simple way if you have CWM recovery.

Fixed!
Had the same problem just now and it scared the heck out of me.
Solved it by doing the following (Did this using ClockWorkMod Recovery 6.0.2.3 so some steps may be different from yours)
Boot to recovery
Connect your device to PC
Download and extract this - http://forum.xda-developers.com/showthread.php?t=1996051
Go to device manager and see that your device has the ! sign
Install the drivers you just downloaded to your device
Rename your rom to update.zip and copy it to where your adb is located
Your device should now be detected by adb so type this - adb push update.zip /sdcard/
In your device, go to install from SD card > apply /sdcard/update.zip
DONE!

Thanks man
I just tried this in boot loader, then i got this error:
http://awesomescreenshot.com/0a3ydrw8d
(Device not found)
---
Then i booted into CWM v6.0.1.9 and then the device was found, and it seems like it successfully transfered the file.
http://awesomescreenshot.com/03cydsr1c < which is great, but when i go to "install zip from sdcard" -> "choose zip from sdcard" the screen blinks and at the bottom it says:
- No files found
----
I then formated the sdcard from the advanced menu and retried transfering the files and it worked
Fantastic!!! Jusdavis i can´t thank you enough.

[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!

Cannot install custom ROMS or unlock bootloader [SOLVED]

I have been trying with every guide and every video I've found to install a custom ROM (CM10 FLEX). Youtube videos generally tend to leave out the fact that you need to unlock the bootloader first. So I go to bootloader guides and follow those and nothing seems to work.
I have attempted to use Blackthunder's Manager and Flasher tools to get it working and something always hangs or gets stuck. With Blackthunder's app it was stuck at the "uploading image" phase. Same goes for AfterOTA.
I'm sorry I'm being vague, but it'll be hard for me to type out every scenario and every program I've tried since I literally just spent 3 evenings and about 6 hours trying with this. My google results are all red because I've looked at every thread already and every guide.
So I'd like some fresh advice and opinions. Where should I start? It's a rooted A500 running ICS (from the standadrd acer update) and is pretty much stock

If a500 manager hangs u will need to flash manually using nvflash.
Civato has a guide stickied in dev forum.
Basically download the v8 bootloader.zip file, extact it, put yr tab in apx mode and run the .bat file.
You will have the option to flash a custom recovery along with the v8. After the flash boot directly to cwm and flash yr rom! Done...
Sent from my GT-I9300 using Tapatalk 4

dibb_nz said:
If a500 manager hangs u will need to flash manually using nvflash.
Civato has a guide stickied in dev forum.
Basically download the v8 bootloader.zip file, extact it, put yr tab in apx mode and run the .bat file.
You will have the option to flash a custom recovery along with the v8. After the flash boot directly to cwm and flash yr rom! Done...
Sent from my GT-I9300 using Tapatalk 4
Click to expand...
Click to collapse
NVflash fails too. It gets stuck on:
Nvflash started
[resume mode]
and after 30 minutes....nothing.

TurnNBurn said:
NVflash fails too. It gets stuck on:
Nvflash started
[resume mode]
and after 30 minutes....nothing.
Click to expand...
Click to collapse
And you're running the bat file from apx mode and yr tab is displaying
Acer iconia downloadmode??
The flash should takeno longer than 5mins total.
If its stalling here check apx device is showing in device manager or under safely remove
Hardware icon in the system tray. Do u have adb/fastboot installed. They come with
the android sdk or u can d/l them from the rootguide in my sig.
Do u see the system info window at all does it stall after/before this:
{
"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"
}

dibb_nz said:
And you're running the bat file from apx mode and yr tab is displaying
Acer iconia downloadmode??
The flash should takeno longer than 5mins total.
If its stalling here check apx device is showing in device manager or under safely remove
Hardware icon in the system tray. Do u have adb/fastboot installed. They come with
the android sdk or u can d/l them from the rootguide in my sig.
Do u see the system info window at all does it stall after/before this:
Click to expand...
Click to collapse
It was running in APX mode and the A500 was showing that it was in APX mode. How would you recommend I get into APX mode? I ask because I've seen various guides that have different ways. The only way I was able to get into APX mode was using Blackthunder's flashing tool and when the A500 was in APX mode I used the other tool (while abandoning blackthunder's tool) to try and flash it.

dibb_nz said:
If its stalling here check apx device is showing in device manager or under safely remove
Hardware icon in the system tray. Do u have adb/fastboot installed. They come with
the android sdk or u can d/l them from the rootguide in my sig.
Click to expand...
Click to collapse
Sent from my GT-I9300 using Tapatalk 4

dibb_nz said:
Sent from my GT-I9300 using Tapatalk 4
Click to expand...
Click to collapse
The device manager wasn't showing an APX device and neither was the "safely remove hardware" tool, but the tablet was still showing it was in APX mode.
I just now tried the "AfterOTA" tool and the tablet says it's in APX mode, but the tool has been stuck on "3/5 Flashing kernel" for about 5 minutes now.
While it was in APX mode again I tried starting the Blackthunder tool. After it failed to start the first process, I closed the command prompt window and it appeard to continue through the process. It got to the "Flashing Bootloader (EBT) stage one - formatting partition..." stage, and in the command prompt it said, "Formatting partition 4, please wait..." but after about 10 minutes....nothing.
Upon a reboot nothing has changed. My tablet isn't bricked and the SD card contents are fine. While it said it was formatting the partition and throughout this process I didn't see anything about "APX" devices in the "safely remove hardware" tool or in the device manager. Though I think I do require a reboot, as now my flash drives arent even showing up in the "remove hardware" tool.
I tried the blackthunder tool again, and I still don't see an APX device in "Device manager". Before it enters APX mode I see an ADB device. But when the blackthunder app says it's in APX mode (Acer screen is completely black) I don't see an APX device in device manager.
However, when I proceed to the next step using blackthunder's tool, I get a green "Acer" logo and in the upper left corner it says, "acer iconia apx mode." And this is where it gets stuck. The black command prompt says, "NVflash started [resume mode]" and the blackthunder program says, "flashing bootloader (EBT)- stage two - uploading image.
I do have the entire android SDK (latest as of 14 Sep 2013.) So I do have adb/fastboot.

K m8 - something is defo amiss -download babsector.rar in the root guide. This will reset yr partitions and flash bootloader and recovery. It will also detect and display any errors.
When u r having probs like yrs it is best to put ye tab inapx mode via the button combo and flash manually, pls post the output of commands....but I have to say its sounding suspiciously like yr memory chip is faulty...we will know for sure once you've run babsector!
Sent from my GT-I9300 using Tapatalk 4

dibb_nz said:
K m8 - something is defo amiss -download babsector.rar in the root guide. This will reset yr partitions and flash bootloader and recovery. It will also detect and display any errors.
When u r having probs like yrs it is best to put ye tab inapx mode via the button combo and flash manually, pls post the output of commands....but I have to say its sounding suspiciously like yr memory chip is faulty...we will know for sure once you've run babsector!
Sent from my GT-I9300 using Tapatalk 4
Click to expand...
Click to collapse
I downloaded babsector, but it looks just like nvflash. Are they the same tool?
Also, I have never once gotten the tablet into APX mode using the manual method (power + reset button, right?). Every time I hold the power and reset button, wait for it to reboot (3 seconds) and release the buttons (power button first) it just powers up like normal.
-edit-
Also, I've been searching for a while now and I can't seem to find a guide showing how to use babsector. Do you have a link handy? What guides I did find said to run "A501 A.bat" first, and when I do that it asks for my SBK and then says "nvflash started. No usb devices found. Press any key to continue..."

My question will sound odd, but from what I've read above, it looks like your computer doesn't see your tab in APX mode:
TurnNBurn said:
The device manager wasn't showing an APX device and neither was the "safely remove hardware" tool, but the tablet was still showing it was in APX mode.
Click to expand...
Click to collapse
I remember mine seeing it when I was under APX mode, are you sure you have the right drivers installed ? I would not proceed any further until the comp sees the tab under APX.

mouhii said:
My question will sound odd, but from what I've read above, it looks like your computer doesn't see your tab in APX mode:
I remember mine seeing it when I was under APX mode, are you sure you have the right drivers installed ? I would not proceed any further until the comp sees the tab under APX.
Click to expand...
Click to collapse
yes, the proper drivers are installed. I believe the issue isn't related to the tablet, but something in windows (a service, maybe) that I disabled.
I got the tablet into APX mode using blackthund3rs A500 manager, ran babsector, and here's the output:
Code:
Nvflash started
rcm version 0X20001
System Information:
chip name: t20
chip id: 0x20 major: 1 minor: 4
chip sku: 0x8
chip uid: 0x037c620742bfa4d7
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: 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
Formatting partition 2 BCT please wait.. done!
Formatting partition 3 PT please wait.. done!
Formatting partition 8 APP 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 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_v8_green.bin
| 1191932/1191932 bytes sent
bootloader_v8_green.bin sent successfully
sending file: recovery.img
/ 5242880/5242880 bytes sent
recovery.img sent successfully
Press any key to continue . . .
and now my tablet says, "entering acer download mode"
and "PASS" in big letters.
-edit-
upon rebooting the tablet it came up with a skrilax bootloader. I entered recovery mode since the primary and secondary kernels failed. I was able to follow the usual guides and install the ROM. However, now it wont boot. It just gets stuck at the bootloader since there's no valid kernel image. What now?
-edit-
Looks like it was messed up partitions. The fix was to put the tablet into APX mode, run babsector, and then proceed as normal.
I tried installing the ROM again and it worked fine this time. It's loading up now. But it's stuck on the "android" screen with the flashing animated "android" text. It's been doing this for about 5+ minutes now. How should I continue?
-edit-
I tried another ROM since I am able to get to the recovery console. I tried CM-10 unofficial (before it was CM-10 FLEX). I get the animated cyanogenmod loading screen and then nothing. It just sits here loading.

Well from what I remember, when I encountered that kind of problem on my devices, I made a total wipe and reprocessed the installation.
Just to be sure I would under fastboot do:
fastboot erase userdata
fastboot reboot
then under recovery, wipe factory and format flexrom. then re install.
Hope this helps.

mouhii said:
Well from what I remember, when I encountered that kind of problem on my devices, I made a total wipe and reprocessed the installation.
Just to be sure I would under fastboot do:
fastboot erase userdata
fastboot reboot
then under recovery, wipe factory and format flexrom. then re install.
Hope this helps.
Click to expand...
Click to collapse
I did do total wipes before each install. I wiped the cache, did factory resets, and wiped the delvik cache.
When I try "fastboot erase userdata" it just says "waiting for device". I am at the CWM Recovery v5.5.0 main menu. Which mode should the tablet be in?

TurnNBurn said:
I did do total wipes before each install. I wiped the cache, did factory resets, and wiped the delvik cache.
When I try "fastboot erase userdata" it just says "waiting for device". I am at the CWM Recovery v5.5.0 main menu. Which mode should the tablet be in?
Click to expand...
Click to collapse
First you need to be in fastboot mode, instead of going into CWM by pressing "volume down" while it's booting, press "volume up" and choose fastboot mode.
Also if you have an error message while doing that, maybe you'd like to take a look here: http://forum.xda-developers.com/showthread.php?t=1431907

mouhii said:
You need to be in fastboot mode first, instead of going into CWM by pressing "volume down" while it's booting, press "volume up" and choose fastboot mode.
Also if you an error message while doing that, maybe you'd like to take a look here: forum.xda-developers.com/showthread.php?t=1431907
Click to expand...
Click to collapse
That did it. I didn't know about the volume up option. I did the fastboot stuff, cleared the cache and did a factory wipe, re-installed CM-10 unofficial, and I just rebooted 8 minutes ago (I'm timing it.) still nothing. Just the cyanogenmod logo with the animated swirl going around in circles.

TurnNBurn said:
I did do total wipes before each install. I wiped the cache, did factory resets, and wiped the delvik cache.
When I try "fastboot erase userdata" it just says "waiting for device". I am at the CWM Recovery v5.5.0 main menu. Which mode should the tablet be in?
Click to expand...
Click to collapse
there are 2 bat files with babsector.
after running the first one, you reboot to recovery and do a full wipe.
there is an option to "enable data/media" do that and it will fully wipe your device. I think its in the mounts and storage menu.
Once you do that flash your rom.
On reboot you must see "skrilqx_cz unlocked bootloader" displayed on-screen
If you don't have this then fastboot will not be available.
Rerun either babsector or the v8/v9.
To enter apx mode manually - You must be sure you are holding in the reset button...otherwise your tab will boot normally as you have found - using a paper clip ( or anything "non-pointy ended ) you will feel the button push in.
(Try holding the tab on its edge on your lap with the power button on your left and the reset button on top)
Press in and hold the reset button
Then press and hold the power button for about 3 seconds.
Then after a second or so release the reset button.
The time part isnt critical, its the delay between releasing the buttons thats important AND having the reset button puched in.
Once skrilax_cz is installed, you can enter "fastboot" by pressing power/vol up
Choose fastboot from the menu ( there may even be an option on the menu to wipe)
Connect your tab to yr pc and open a command prompt on the fastboot folder.
Enter your erase commands and then "fastboot reboot".
Oh and also - u said you were running stock ICS - if you lose your custom recovery and end up with the dead android screen, you will have to delete the .boot.p file as stated in the guides.

I don't know if I'll be able to help you much more than that as I never faced that problem (well that one persisting never happened to me on the Iconia, it did on the SGS i9100 but it was because of a faulty kernel)
You could try to flash first a rom like the one from civato, RE-FLEXxx-ShellSHOCK, see how it goes, also are you formating flexrom ? (from advanced in CWM), it helped sometimes.
Btw I'm using CWM public recovery v0.2 (based on CWM 5.5.0.4, there's a thread in dev section), along with bootloader V8. Never had a problem using any rom with this one.
--edit
My bad, I said flexrom format was in advanced, it's in mount/storage menu.

TurnNBurn said:
That did it. I didn't know about the volume up option. I did the fastboot stuff, cleared the cache and did a factory wipe, re-installed CM-10 unofficial, and I just rebooted 8 minutes ago (I'm timing it.) still nothing. Just the cyanogenmod logo with the animated swirl going around in circles.
Click to expand...
Click to collapse
Power off and reboot...it can take awhile to boot up,
go make a coffee
Sent from my GT-I9300 using Tapatalk 4
---------- Post added at 09:13 AM ---------- Previous post was at 09:02 AM ----------
@TurnNBurn....howzit going????
Sent from my GT-I9300 using Tapatalk 4

dibb_nz said:
there are 2 bat files with babsector.
after running the first one, you reboot to recovery and do a full wipe.
there is an option to "enable data/media" do that and it will fully wipe your device. I think its in the mounts and storage menu.
Once you do that flash your rom.
Click to expand...
Click to collapse
I've only run the first batch file, batch file A.
I finally got it into APX mode, ran batch file A, and reset everything. However, there is no "enable data/media" option under the mounts and storage menu. I have:
mount /system
mount /data
mount /cache
mount /flexrom
mount /sdcard
and then for each mount option I have a format (format /system, format /data, etc...)
If I do have to delete the boot.p file, how is that done?
-edit-
This post was made 30 mintues ago and the cyanogenmod logo is still on the screen swirling after the new flash and reboot.
-edit 2-
45 +/- minutes now. I'm shutting it off again.
-third notoriously annoying edit-
I repeated the steps and tried a different ROM, CM 10 flex again. Still no joy. Been sitting at the animated boot screen for a few minutes now...and coffee is already made since the last ROM reboot.

TurnNBurn said:
I've only run the first batch file, batch file A.
I finally got it into APX mode, ran batch file A, and reset everything. However, there is no "enable data/media" option under the mounts and storage menu. I have:
mount /system
mount /data
mount /cache
mount /flexrom
mount /sdcard
and then for each mount option I have a format (format /system, format /data, etc...)
If I do have to delete the boot.p file, how is that done?
-edit-
This post was made 30 mintues ago and the cyanogenmod logo is still on the screen swirling after the new flash and reboot.
-edit 2-
45 +/- minutes now. I'm shutting it off again.
-third notoriously annoying edit-
I repeated the steps and tried a different ROM, CM 10 flex again. Still no joy. Been sitting at the animated boot screen for a few minutes now...and coffee is already made since the last ROM reboot.
Click to expand...
Click to collapse
ok here we go...grab yr beverage of choice
boot.p file is a file on stock roms that overwrites your newly flashed custom recovery..if you still have cwm you dont need to worry bout it!
The reboot shouldnt take that long - maybe 10mins at most.
You will need to go in and wipe EVERYTHING twice! Yes twice!!
this means System, flexrom, Data and cache. After erasing/formatting System you will not have an OS so be sure to flash a rom before rebooting.
Either fastboot erase or cwm format - (choice is yours but I find fastboot just as easy but its unforgiving..you do not want to muck up in here!!!)
You may want to update to the latest cwm - heres a recovery.img http://forum.xda-developers.com/attachment.php?attachmentid=2238701&d=1378452510
Put it in the folder where you have fastboot. Then boot to fastboot andenter
fastboot flash recovery cwm_1.7.3_recovery.img
EDIT: did u run the 2nd bat file from babsector??

Windows A500 NVfash Bootloader Script

Hi Everyone
A while back I was having all sorts of problems trying to flash a patched bootloader to my Acer A500 So that I could install a custom recovery, Custom ROMS , etc...
Well thanks to some help from this awesome site, and a member here that pointed me to an NVFlash archive (Bab-Sector) with a script in it and it worked perfect. The Script however was using the V8 bootloader instead of V9, and I wanted to go with the V9 Bootloader 03.14-EXT So I updated the scripts to install the bootloader to SkrilaxCZ v9 Patched for Acer A500, and I also added Thor2002ro CWM 1.7.3 touch, instead of 1.7. 1.7.3 works a whole lot better
*****************************IMPORTANT**************************
Before using these tools make sure to back up your tablet first, and have a good ROM ready to install once you have your patched bootloader installed. Using this tool to Install the patched bootloader will render your current ROM unusable. You will have to install a new ROM as soon as your finished. This will also fix all the partitions on your tablet, so that they are all correct, but in doing it destroys your current install.
So any way here is a quick guide to flash the patched V9 bootloader file on your Acer A500:
Before you Continue:
You will need to know your SBK
And you need to have all the proper Acer USB drivers installed.
Plus you will need this file: A500-Bootloader-V9_Babsector
Extract the contents to some folder, and open the folder.
Now power off the tablet, and while it is connected to your PC via USB take a paperclip and press the reset button (located on the side next to the full size USB port, a small hole) and the power button, slowly count to 3 then release the power button, count one more to 4 and then release the reset button. Now your tablet is in APX download mode.
Open the folder where you extracted the bootloader and tools. Double click the file a501 A.bat. Enter your SBK.
The bootloader will be flashed, and Thor2002ro CWM 1.7.3 Custom Recovery will be installed, upon completion the screen will say PASS.
Now hold down the power button until the tab turns off, then hold the vol down button along with the power button to boot into CWM. Once in CWM navigate to the mounts and storage menu, then format system partition twice. Now go back to the power menu, and power off the tablet.
Now you need to boot APX download mode again, take a paperclip and press the reset button and the power button, slowly count to 3 then release the power button, count one more to 4 and release the reset button. Now your tablet is in APX download mode again.
Back to the folder where you extracted the bootloader and tools again. Now double click the file a501 B.bat.
The bootloader will be flashed again, and Thor2002ro CWM 1.7.3 Custom Recovery will be reinstalled, upon completion the screen will once again display PASS. You are finished, and you have a good custom recovery, along with the best patched bootloader for the A500.
Now you are ready to install custom ROMS from Thor2002ro CWM Touch.
If you decide that you no longer want to have the patched bootloader you can restore your A500 to complete stock ICS4.0.3 with this ROM: Stock ROM Acer_AV041_A500_1.033.00_PA_CUS1
You can flash this ROM with CWM or rename it to update.zip and place on root of external SD and the stock recovery will install it also. after the ROM has installed the tablet needs to reboot and the bootloader will be installed, then the tab will reboot, and you are back to 100% stock Acer_AV041_A500_1.033.00_PA_CUS1. You will not have root, and the bootloader will also be stock. This is the file you need if for some reason you should ever need to have your tablet sent to Acer, to be worked on. under warranty for example, or if you just want to have the tablet returned to stock.
I really hope this little guide helps someone, I know that a few months ago this would have helped me out when I could not flash my bootloader from windows with either the Black Thund3rAPX tool or AfterOTA, both of which are excellent tools, but for some reason they just would not work with my tab until after I had flashed my bootloader with NVFlash the way I explain here.
Also I need to point out that the scripts and tools included in the bootloader archive are originally the Bab-Sector tools. I just updated the bootloader files to SkrilaxCZ V9 Bootloader, with the green Acer logo, and the Custom Recovery to Thor2002ro CWM Touch 1.7.3
Thanks
- Kaiji

Omg! Thank you!
Thank you, thank you, thank you. I've been trying for two days to get a custom recovery to install. I too used Blackthund3r's tools, but nothing was working. I think my partition table was screwed. It took me forever just to get the drivers to recognize APX mode. Google's generic driver's > Acers! Again thank you so much.

KaijiKun said:
Hi Everyone
A while back I was having all sorts of problems trying to flash a patched bootloader to my Acer A500 So that I could install a custom recovery, Custom ROMS , etc...
Well thanks to some help from this awesome site, and a member here that pointed me to an NVFlash archive (Bab-Sector) with a script in it and it worked perfect. The Script however was using the V8 bootloader instead of V9, and I wanted to go with the V9 Bootloader 03.14-EXT So I updated the scripts to install the bootloader to SkrilaxCZ v9 Patched for Acer A500, and I also added Thor2002ro CWM 1.7.3 touch, instead of 1.7. 1.7.3 works a whole lot better
*****************************IMPORTANT**************************
Before using these tools make sure to back up your tablet first, and have a good ROM ready to install once you have your patched bootloader installed. Using this tool to Install the patched bootloader will render your current ROM unusable. You will have to install a new ROM as soon as your finished. This will also fix all the partitions on your tablet, so that they are all correct, but in doing it destroys your current install.
So any way here is a quick guide to flash the patched V9 bootloader file on your Acer A500:
Code:
Before you Continue:
You will need to know your SBK
And you need to have all the proper Acer USB drivers installed.
Plus you will need this file: http://www.4shared.com/zip/dbt1DsjT/A500-Bootloader-V9-Nvflash.html
Extract the contents to some folder, and open the folder.
Now power off the tablet, and while it is connected to your PC via USB take a paperclip and press the reset button (located on the side next to the full size USB port, a small hole) and the power button, slowly count to 3 then release the power button, count one more to 4 and then release the reset button. Now your tablet is in APX download mode.
Open the folder where you extracted the bootloader and tools. Double click the file a501 A.bat. Enter your SBK.
The bootloader will be flashed, and Thor2002ro CWM 1.7.3 Custom Recovery will be installed, upon completion the screen will say PASS.
Now hold down the power button until the tab turns off, then hold the vol down button along with the power button to boot into CWM. Once in CWM navigate to the mounts and storage menu, then format system partition twice. Now go back to the power menu, and power off the tablet.
Now you need to boot APX download mode again, take a paperclip and press the reset button and the power button, slowly count to 3 then release the power button, count one more to 4 and release the reset button. Now your tablet is in APX download mode again.
Back to the folder where you extracted the bootloader and tools again. Now double click the file a501 B.bat.
The bootloader will be flashed again, and Thor2002ro CWM 1.7.3 Custom Recovery will be reinstalled, upon completion the screen will once again display PASS. You are finished, and you have a good custom recovery, along with the best patched bootloader for the A500.
Now you are ready to install custom ROMS from Thor2002ro CWM Touch.
If you decide that you no longer want to have the patched bootloader you can restore your A500 to complete stock ICS4.0.3 with this ROM
Code:
Stock ROM Acer_AV041_A500_1.033.00_PA_CUS1
http://www.4shared.com/zip/R6Wn2rFJ/A500-Stock.html
You can flash this ROM with CWM or rename it to update.zip and place on root of external SD and the stock recovery will install it also. after the ROM has installed the tablet needs to reboot and the bootloader will be installed, then the tab will reboot, and you are back to 100% stock Acer_AV041_A500_1.033.00_PA_CUS1. You will not have root, and the bootloader will also be stock. This is the file you need if for some reason you should ever need to have your tablet sent to Acer, to be worked on. under warranty for example, or if you just want to have the tablet returned to stock.
I really hope this little guide helps someone, I know that a few months ago this would have helped me out when I could not flash my bootloader from windows with either the Black Thund3rAPX tool or AfterOTA, both of which are excellent tools, but for some reason they just would not work with my tab until after I had flashed my bootloader with NVFlash the way I explain here.
Also I need to point out that the scripts and tools included in the bootloader archive are originally the Bab-Sector tools. I just updated the bootloader files to SkrilaxCZ V9 Bootloader, with the green Acer logo, and the Custom Recovery to Thor2002ro CWM Touch 1.7.3
Thanks
- Kaiji
Click to expand...
Click to collapse
Nice guide Kaiji...a quick question. Do u know why babsector requires u to run both bat files. A few folks have just run the first one, done the formats then flashed their rom. Seems no one had any problems. Could u explain ( to a noob like me how babsector actually works? ??
rgds dibb
Sent from my GT-I9300 using Tapatalk 4

dibb_nz said:
Nice guide Kaiji...a quick question. Do u know why babsector requires u to run both bat files. A few folks have just run the first one, done the formats then flashed their rom. Seems no one had any problems. Could u explain ( to a noob like me how babsector actually works? ??
rgds dibb
Sent from my GT-I9300 using Tapatalk 4
Click to expand...
Click to collapse
Thanks
Actually both of those batch files are identical, I believe that the original writer wanted to be sure that any corrupted data, and or partitions were repaired. And that is exactly what they do.What happens is after the tab is in apx mode a temporary rw bootloader image is uploaded, and then the file correctly maps out and create the partitions needed for you tablet, then it uploads the bootloader, and recovery images. now with your new patched bootloader you can boot to custom recovery, install custom ROM's, and you could even install a second OS and set up a dual boot scenario, Skrilax_CZ has some really great tutorials on this here. You will also find that Blackthund3r's tools will also work now too.
- Kaiji

dibb_nz said:
; Nice guide Kaiji...a quick question....... Could u explain ( to a noob like me how babsector actually works? ??
rgds dibb
Sent from my GT-I9300 using Tapatalk 4
Click to expand...
Click to collapse
Thank you
I am very happy that you, a senior member, actually thinks the guide is good. It really does mean a lot ( to a noob like me
I have actually just been poking around, and learning alI I can. I have always been a big fan of the Linux system, and the fact that it is now, in its Android form so huge world wide, on smartphones, and tablets everywhere is awesome!!
Any way I do really love that Android is based on the open source Linux code, and since it is, it's 100% customizable, hackable, & rewritable, sweet!!.
Oh yeah, To continue on a bit more about babsector, from my last post. The way that babsector actually works is this, while the tablet is is the NVidia APX download mode, the program NVFlash can then upload the special temporary APX mode bootloader image with rw abilities so that NVFlash can then set the partitions, and upload you patched bootloader. At least I believe that is how it all works. As I said I am just poking around, hehehe, an old linux user trying to learn all I can and then pass it on so everyone can enjoy the full potential of their devices.
- Kaiji

Not Working
KaijiKun said:
Hi Everyone
A while back I was having all sorts of problems trying to flash a patched bootloader to my Acer A500 So that I could install a custom recovery, Custom ROMS , etc...
Well thanks to some help from this awesome site, and a member here that pointed me to an NVFlash archive (Bab-Sector) with a script in it and it worked perfect. The Script however was using the V8 bootloader instead of V9, and I wanted to go with the V9 Bootloader 03.14-EXT So I updated the scripts to install the bootloader to SkrilaxCZ v9 Patched for Acer A500, and I also added Thor2002ro CWM 1.7.3 touch, instead of 1.7. 1.7.3 works a whole lot better
*****************************IMPORTANT**************************
Before using these tools make sure to back up your tablet first, and have a good ROM ready to install once you have your patched bootloader installed. Using this tool to Install the patched bootloader will render your current ROM unusable. You will have to install a new ROM as soon as your finished. This will also fix all the partitions on your tablet, so that they are all correct, but in doing it destroys your current install.
So any way here is a quick guide to flash the patched V9 bootloader file on your Acer A500:
Before you Continue:
You will need to know your SBK
And you need to have all the proper Acer USB drivers installed.
Plus you will need this file: A500-Bootloader-V9_Babsector
Extract the contents to some folder, and open the folder.
Now power off the tablet, and while it is connected to your PC via USB take a paperclip and press the reset button (located on the side next to the full size USB port, a small hole) and the power button, slowly count to 3 then release the power button, count one more to 4 and then release the reset button. Now your tablet is in APX download mode.
Open the folder where you extracted the bootloader and tools. Double click the file a501 A.bat. Enter your SBK.
The bootloader will be flashed, and Thor2002ro CWM 1.7.3 Custom Recovery will be installed, upon completion the screen will say PASS.
Now hold down the power button until the tab turns off, then hold the vol down button along with the power button to boot into CWM. Once in CWM navigate to the mounts and storage menu, then format system partition twice. Now go back to the power menu, and power off the tablet.
Now you need to boot APX download mode again, take a paperclip and press the reset button and the power button, slowly count to 3 then release the power button, count one more to 4 and release the reset button. Now your tablet is in APX download mode again.
Back to the folder where you extracted the bootloader and tools again. Now double click the file a501 B.bat.
The bootloader will be flashed again, and Thor2002ro CWM 1.7.3 Custom Recovery will be reinstalled, upon completion the screen will once again display PASS. You are finished, and you have a good custom recovery, along with the best patched bootloader for the A500.
Now you are ready to install custom ROMS from Thor2002ro CWM Touch.
If you decide that you no longer want to have the patched bootloader you can restore your A500 to complete stock ICS4.0.3 with this ROM: Stock ROM Acer_AV041_A500_1.033.00_PA_CUS1
You can flash this ROM with CWM or rename it to update.zip and place on root of external SD and the stock recovery will install it also. after the ROM has installed the tablet needs to reboot and the bootloader will be installed, then the tab will reboot, and you are back to 100% stock Acer_AV041_A500_1.033.00_PA_CUS1. You will not have root, and the bootloader will also be stock. This is the file you need if for some reason you should ever need to have your tablet sent to Acer, to be worked on. under warranty for example, or if you just want to have the tablet returned to stock.
I really hope this little guide helps someone, I know that a few months ago this would have helped me out when I could not flash my bootloader from windows with either the Black Thund3rAPX tool or AfterOTA, both of which are excellent tools, but for some reason they just would not work with my tab until after I had flashed my bootloader with NVFlash the way I explain here.
Also I need to point out that the scripts and tools included in the bootloader archive are originally the Bab-Sector tools. I just updated the bootloader files to SkrilaxCZ V9 Bootloader, with the green Acer logo, and the Custom Recovery to Thor2002ro CWM Touch 1.7.3
Thanks
- Kaiji
Click to expand...
Click to collapse
Hi Kaiji,
I tried your trick but it is not working for me. Could you please help me to solve this issue?
When i run first a501A file my tablet vibrate and went to download mode. I have attached file what exactly i get (file no. 1) and when i try to run the batch file again while tablet in download mode i get result (file no. 2). Please direct me what exactly i need to do?
Thanks

jd4r said:
Hi Kaiji,
I tried your trick but it is not working for me. Could you please help me to solve this issue?
When i run first a501A file my tablet vibrate and went to download mode. I have attached file what exactly i get (file no. 1) and when i try to run the batch file again while tablet in download mode i get result (file no. 2). Please direct me what exactly i need to do?
Thanks
Click to expand...
Click to collapse
Hmm, I wonder what the problem could be.... I would say for starters, try reinstalling the drivers, reboot, and try the script again. making sure to runit as Administrator. Also do you have AfterOTA? send me a PM after you try reinstalling your drivers, and if you are still having trouble tomorow, I will PM you my phone # and I will do my best to help you solve this over the phone.
I will be online tomorow around 12:00 noon EDT and will look for your PM and/or a reply
- Kaiji

Thanks.
KaijiKun said:
Hmm, I wonder what the problem could be.... I would say for starters, try reinstalling the drivers, reboot, and try the script again. making sure to runit as Administrator. Also do you have AfterOTA? send me a PM after you try reinstalling your drivers, and if you are still having trouble tomorow, I will PM you my phone # and I will do my best to help you solve this over the phone.
I will be online tomorow around 12:00 noon EDT and will look for your PM and/or a reply
- Kaiji
Click to expand...
Click to collapse
Thanks for your response. I appreciate it. My problem got resolved after running Acera500 flash tool.
Thanks again for your help.

jd4r said:
Thanks for your response. I appreciate it. My problem got resolved after running Acera500 flash tool.
Thanks again for your help.
Click to expand...
Click to collapse
No problem , I am very glad your problems were resolved. And, if you don't mind, I have a few questions for you.
1. What exactly went wrong in your situation?
2. Which tablet are you using?
3. And, how did you solve your problems exactly?
The reason I ask is that each tablet/software combination may each be a little unique, and the details of your experience can be very helpful to others as they encounter their own situation, and most of all we can always learn more from everyones different case, and apply that knowledge to improving the ability to help in the next case. Also, please try to be as detailed as possible, if you decide to answer the questionsI asked.
Thank you very much for your input
- Kaiji

KaijiKun said:
Hi Everyone
I really hope this little guide helps someone, I know that a few months ago this would have helped me out when I could not flash my bootloader from windows with either the Black Thund3rAPX tool or AfterOTA, both of which are excellent tools, but for some reason they just would not work with my tab until after I had flashed my bootloader with NVFlash the way I explain here.
Also I need to point out that the scripts and tools included in the bootloader archive are originally the Bab-Sector tools. I just updated the bootloader files to SkrilaxCZ V9 Bootloader, with the green Acer logo, and the Custom Recovery to Thor2002ro CWM Touch 1.7.3
Thanks
- Kaiji
Click to expand...
Click to collapse
Well it got me from only booting to APX mode to having a bootloader, but I'm still having problems. I ran the script and got the PASS screen. Now it boots to the bootloader but I'm no longer able to use the reset button to get to the APX mode. Even when I hold the reset button while powering on, it just goes to the bootloader. It also does this just powering on without press the -vol button. I'm assuming this was because I was also getting an error message say the Lnx kernel was invalid.
So I went ahead and flashed the A500-stock.zip and no longer get the invalid kernel message but it still boots to the loader menu with the options Primary (LNX), Recovery and Fastboot. But when I choose the first option it hangs on the first screen saying "Booting Android Image from LNX partition..." Revovery takes me to the recovery menu and Fastboot connect me to my PC in ADB mode.
Any suggestion about where I go from here?

4929york said:
Well it got me from only booting to APX mode to having a bootloader, but I'm still having problems. I ran the script and got the PASS screen. Now it boots to the bootloader but I'm no longer able to use the reset button to get to the APX mode. Even when I hold the reset button while powering on, it just goes to the bootloader. It also does this just powering on without press the -vol button. I'm assuming this was because I was also getting an error message say the Lnx kernel was invalid.
So I went ahead and flashed the A500-stock.zip and no longer get the invalid kernel message but it still boots to the loader menu with the options Primary (LNX), Recovery and Fastboot. But when I choose the first option it hangs on the first screen saying "Booting Android Image from LNX partition..." Revovery takes me to the recovery menu and Fastboot connect me to my PC in ADB mode.
Any suggestion about where I go from here?
Click to expand...
Click to collapse
I got APX mode working again. I had to fall back to Win 7. In Win 8 it couldn't find tthe APX driver.
So, I started from scratch and ran the A501.A bat, then formatted the /system twice. Then rebooted into APX and ran the a501.B script and got this error. "Formatting partition 2 BCT please wait... FAILED!" What now????? PLEASE HELP!!!!!

jd4r said:
Hi Kaiji,
I tried your trick but it is not working for me. Could you please help me to solve this issue?
When i run first a501A file my tablet vibrate and went to download mode. I have attached file what exactly i get (file no. 1) and when i try to run the batch file again while tablet in download mode i get result (file no. 2). Please direct me what exactly i need to do?
Thanks
Click to expand...
Click to collapse
im having the same problem as u were having with the attachments on the error codes u got can u share some light to me on the solution u was told to use

Im about at my wits end and gonna make a paper weight out of this thing I guess. I had recovered it with the Timmy Dean tool once already, and was on HC for about a week. I wanted to upgrade to ICS. So I tried to flash to bootloader but somehow got to where I can only boot into APX mode. I keep hanging on every tool I use. Here is a screen shot of the error when using the babsector in this thread. As far as I know I have the correct drivers from Acers site, but not sure about the adb drivers. I have them, but they don't "install" like the acer drivers did. How do I know they are correct? See my error attached photo. Is it possible to have something so messed up that even though apx mode works, it still wont flash itself out of the problem?

Need help with running A501 A.bat
Hi there. I put my tablet into APX mode by following the instructions above. However, when I run the A501 A.bat script, it reports that "USB device not found"
I have my tablet connected to my desktop via a USB-miniUSB cable. The connection works fine when the tablet is on, but it doesn't register it when the tablet is in APX mode
Any suggestions? Thanks!

romUser1365 said:
Hi there. I put my tablet into APX mode by following the instructions above. However, when I run the A501 A.bat script, it reports that "USB device not found"
I have my tablet connected to my desktop via a USB-miniUSB cable. The connection works fine when the tablet is on, but it doesn't register it when the tablet is in APX mode
Any suggestions? Thanks!
Click to expand...
Click to collapse
Just a couple suggestions, I would start by making sure you have a known good micro USB cable, make sure it's plugged into a USB 2.0 port directly connected to you motherboard and not a USB hub or a USB 3.0 port as those can cause problems. The last thing I would recommend is to use Windows 7. Windows 10 may or may not work with this method as this tablet is pretty old. You can use a virtual machine to run Windows 7 and it should work fine. Hopefully this helps a bit.

turnert said:
Just a couple suggestions, I would start by making sure you have a known good micro USB cable, make sure it's plugged into a USB 2.0 port directly connected to you motherboard and not a USB hub or a USB 3.0 port as those can cause problems. The last thing I would recommend is to use Windows 7. Windows 10 may or may not work with this method as this tablet is pretty old. You can use a virtual machine to run Windows 7 and it should work fine. Hopefully this helps a bit.
Click to expand...
Click to collapse
I am unable to connect directly to the motherboard, as my PC is actually a laptop, and I don't really want to try and open it up. I did manage to use a vm and try this on Windows 7 with no luck . If anyone has any other suggestions I'm all ears. The only thing that I think might be causing these issues is that I'm using a USB 3.0 port (My laptop doesn't have 2.0 ports), so I'll update this reply once I find a computer that has usb 2.0 ports.
Also, do I need to install a custom recovery before running the A500 A and A500 B scripts? Are there tutorials on how to do that? I think I ran into issues last time I tried because I hadn't unlocked my bootloader (tablet wouldn't enter recovery mode). But, if I understand it correctly, the instructions for this thread tell you how to unlock the bootloader, but it also requires the custom recovery or else you lose your stock rom. It's quite a catch 22

romUser1365 said:
I am unable to connect directly to the motherboard, as my PC is actually a laptop, and I don't really want to try and open it up. I did manage to use a vm and try this on Windows 7 with no luck . If anyone has any other suggestions I'm all ears. The only thing that I think might be causing these issues is that I'm using a USB 3.0 port (My laptop doesn't have 2.0 ports), so I'll update this reply once I find a computer that has usb 2.0 ports.
Also, do I need to install a custom recovery before running the A500 A and A500 B scripts? Are there tutorials on how to do that? I think I ran into issues last time I tried because I hadn't unlocked my bootloader (tablet wouldn't enter recovery mode). But, if I understand it correctly, the instructions for this thread tell you how to unlock the bootloader, but it also requires the custom recovery or else you lose your stock rom. It's quite a catch 22
Click to expand...
Click to collapse
Yes you need to unlock your bootloader before you can get a custom rom or a custom recovery. But to do that you need root first. Also when I said connect your USB cable directly to your mother board I meant just any USB port on your motherboard.

turnert said:
Yes you need to unlock your bootloader before you can get a custom rom or a custom recovery. But to do that you need root first. Also when I said connect your USB cable directly to your mother board I meant just any USB port on your motherboard.
Click to expand...
Click to collapse
That would still involve opening up my laptop, no? Also, I don't think that the USB cable is the issue, as I am able to connect just fine when the tablet is powered on, but not in APX mode. Also, I have tried rooting it before with a couple methods, both of which failed in one way or another. I'm open to trying out some other method(s) if you have a suggestion

Hi!
I have a similar problem like other users. Ive try many metods and I cant unbrik my A500. I dont know witch BL etc it has. Ive tried many update.zips but always without result. I can enter in apx mode but no more...
When I run A501A the I have this problem.
* Reboot your tablet into APX mode *
Generate your SBK with your CPUID from here :
Enter your SBK:0x58244C00 0x6309C006 0x2B432404 0xB0512103
Nvflash started
rcm version 0X20001
System Information:
chip name: t20
chip id: 0x20 major: 1 minor: 3
chip sku: 0x8
chip uid: 0x038892484340e057
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: 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
Presione una tecla para continuar . . .
-------------------------------------------------------
I cant solve it. Can you help me please.

Real fix for thinkpad tablet boot loop!

Introduction
OK. the story is I was on Thinkpad Tablet A 400-03-0070-0132-ROW, I decided to taste CM10 by Koshu, Thank you Koshu!), I accessed Root by RootDebugfs script! (Folow this instruction: http://forum.xda-developers.com/showthread.php?t=1706588)
Then I installed CWM and backup my tablet, then after install CM10. (Folow this instruction: http://forum.xda-developers.com/showthread.php?t=1846044 , Thanks Koshu again)
Everything was fine. thanks Koshu again !
Then I decided to back to my stock ROM, My backup was corrupted!!!!!! YES! and Thinkpad tablet went to BOOT LOOP.
Finally I solve it after 3 day's experiments! I repeated my experiment and I was successful as many times as I repeated. Then I decide to share my solution to anyone.
It works for any Thnkpad Tablet (US,ROW,WE,...) but at the end you will have A 400-03-0070-0132-ROW, but you can repeat to ROOT, CWM and CM10 again
Before Start
1) your tablet is Thinkpad Tablet and stocked in the boot loop.
2) your tablet partition 4EBT is not lock by factory (you will learn if it is!)
3) after this instruction your tablet cure completely and you will have A 400-03-0070-0132-ROW version, not Rooted but you can access root later (RootDebugfs) and also you can do anything, also you can brick it again and this will solve it again !!!!
4) at each step, if you don't know the meanings, just search this forum.
Instruction:
1) download nvFlash + driver + CMW files + my script (included at the end).
2) put your tablet in the APX mode:
yes, you are at boot loop, but you can push the power button for 10sec. you will be off for a while, instantly push rotation lock key then add power button, wait for 2 second and release both buttons, you are at APX mode now, at the device manager of your control panel you can see APX installed.
3) install APX drivers:
if device start to loop before installing driver go to 2.
install driver from downloded files, drivers folder. windows say something! ignore it! and install driver
4)now we start to put recovery image to your SOS partition, it can help the device come back from loop!
(learn how to go into APX mode)
run my scrip from downloded files (alikghp.bat)
choose install CWM5.0,
go to APX mode and wait.
you will see big PASS on your device.
5) copy
a. clockworkmod folder and it's content
b. ThinkPadTablet_A310_02_0039_0089_ROW.zip
c. ThinkPadTablet_A310_03_0069_0121_ROW.zip
d. ThinkPadTablet_A400_03_0070_0132_ROW.zip
from downloaded files to a SDcard and insert SDcard to your tablet.
6) turn off your device, go to recovery mode (power (after vibration release power, push Vol.up 2 or 3 times), you will see the CWM recovery.
YES you break the DEVIL's LOOP!
7) use Vol.up, Vil.down and power to choose -backup and restore, then
-restore from external sdcard.
the -yes.
be patient and wait until to end.
8) at CWM's main menu choose -install zip from sdcard. then
-choose zip from external sdcard.
-choose ThinkPadTablet_A310_02_0039_0089_ROW.zip
9) again run alikghp.bat but this time
choose install OriginalRecovey
after see the big PASS...
10) turn off, and turn on to recovery mode again.
choose wipe data/factory reset. wait until finish.
choose reboot system now.
11) your tablet back to life. with A310_02_0039_0089_ROW !!! wait until it it's jobs done!
12) turn off and turn on to recovery mode again. choose apply update from external storage.
choose ThinkPadTablet_A310_03_0069_0121_ROW. after finishing reboot and wait wait until it it's jobs done!
repeate this step and
choose ThinkPadTablet_A400_03_0070_0132_ROW after finishing reboot and wait wait until it it's jobs done!
it's done.
now you can root and install CM10 again, (refer to Introduction above) BUT this time make sure your Nandroid backup is healthy and pull it on your hard disk to safety.
==============================================================================
Download files here:
https://drive.google.com/file/d/0B5cPsgBIMN0JLWdlM00wLUlYZEE/edit?usp=sharing
==============================================================================
ENJOY!!! By:Ali Ghodratipour

when using nvflash and type "sync" i got this
error: rcm version 0X4 Command send failed (usb write failed)
is this mean that my tablet partition 4EBT is lock by factory and i can't use this method

m7mdrda said:
when using nvflash and type "sync" i got this
error: rcm version 0X4 Command send failed (usb write failed)
is this mean that my tablet partition 4EBT is lock by factory and i can't use this method
Click to expand...
Click to collapse
I guess this problem may come from 2 area.
1) are you sure that you have installed nvflash drivers properly?
2) do you install Bootloader on your 4EBT partition, because you have to do it before any command sending?
check the following post (thanks suntechnic!) to learn more about nvflashing.
http://forum.xda-developers.com/showthread.php?t=1745450

Thank you ali
i did every thing you said in your post .... i have a bricked thikpad tablet stay in logo when start and have a bricked recovery mode but when i used your methode my tablet don't wont to enter in recovery mode again when i hold start button and push the vol up twice i see on top booting recovery kernal image and my tablet restart after that
i think my bootloader is unlocked but i dont know how to use nvfash so please help me i don't know what i will do please is there a solution
if you have solution i can give you permission to enter to my pc and do what ever you want to do just please help me

same as gharib madrid; but my thinkpad boots directly into "booting recovery kernal image" screen, then it hangs for few seconds then it powers down or restarts into bootloops,
my bootloader is unlocked.
after trying this method in the original post TENS of times, with bootload inetialize failuer, I got this
Code:
Nvflash started
[resume mode]
sending file: recCWM5.img
/ 4452352/4452352 bytes sent
recCWM5.img sent successfully
failed executing command 25 NvError 0x120002
command failure: sync failed (bad data)
bootloader status: Bct Write Failed (code: 22) message: nverror:0x42008 (0x6042008) flags: 0
anyone can help me in this?

7) use Vol.up, Vil.down and power to choose -backup and restore, then
-restore from external sdcard.
the -yes.
be patient and wait until to end.
How long this step may take?
after
"Cheking MD5 sums...
Erasing boot before restore...
Restoring boot image...
Restoring system...?
it looks like the process hanged here, now 25 minutes passed and still waiting some cool to happen
anyone who tried this method, please reply

ana_mawjoud said:
same as gharib madrid; but my thinkpad boots directly into "booting recovery kernal image" screen, then it hangs for few seconds then it powers down or restarts into bootloops,
my bootloader is unlocked.
after trying this method in the original post TENS of times, with bootload inetialize failuer, I got this
Code:
Nvflash started
[resume mode]
sending file: recCWM5.img
/ 4452352/4452352 bytes sent
recCWM5.img sent successfully
failed executing command 25 NvError 0x120002
command failure: sync failed (bad data)
bootloader status: Bct Write Failed (code: 22) message: nverror:0x42008 (0x6042008) flags: 0
anyone can help me in this?
Click to expand...
Click to collapse
My thinkpad tablet suddenly die..and i am suck in the same place as you... it shows "booting recovery kernal image" screen, then it hangs for few seconds then it powers down or restarts into bootloops,
WIll my thinkpad 32G be an issue?

Hi.
I had the same problem. Follows the isntructions an after that "booting recovery kernal image" plus lenovo loop.
My solution was: I had changed the line 30 in "alikghp.bat" by:
nvflash -r --download 6 clockworkmod\backup\ThinkPadTablet_0089_ROW_Root_CWM\recovery.img
that is: I had used the recovery partition from "clockworkmod\backup\ThinkPadTablet_0089_ROW_Root_CWM".
After that, the steps 6 and 7 of post#1 work!!
reaperhk said:
My thinkpad tablet suddenly die..and i am suck in the same place as you... it shows "booting recovery kernal image" screen, then it hangs for few seconds then it powers down or restarts into bootloops,
WIll my thinkpad 32G be an issue?
Click to expand...
Click to collapse

The files?
Thank You for all this help, Ali. I'm trying to follow these instructions today with a Thinkpad 1838 tablet to that's stuck in the animation loop.............but the link to your files is broken.
Can you (or anyone reading) help me?
Thanks again; this is a great tablet, and I wish to resurrect it for my daughter for her birthday.
***************************************************
aliakg56 said:
Introduction
OK. the story is I was on Thinkpad Tablet A 400-03-0070-0132-ROW, I decided to taste CM10 by Koshu, Thank you Koshu!), I accessed Root by RootDebugfs script! (Folow this instruction: http://forum.xda-developers.com/showthread.php?t=1706588)
Then I installed CWM and backup my tablet, then after install CM10. (Folow this instruction: http://forum.xda-developers.com/showthread.php?t=1846044 , Thanks Koshu again)
Everything was fine. thanks Koshu again !
Then I decided to back to my stock ROM, My backup was corrupted!!!!!! YES! and Thinkpad tablet went to BOOT LOOP.
Finally I solve it after 3 day's experiments! I repeated my experiment and I was successful as many times as I repeated. Then I decide to share my solution to anyone.
It works for any Thnkpad Tablet (US,ROW,WE,...) but at the end you will have A 400-03-0070-0132-ROW, but you can repeat to ROOT, CWM and CM10 again
Before Start
1) your tablet is Thinkpad Tablet and stocked in the boot loop.
2) your tablet partition 4EBT is not lock by factory (you will learn if it is!)
3) after this instruction your tablet cure completely and you will have A 400-03-0070-0132-ROW version, not Rooted but you can access root later (RootDebugfs) and also you can do anything, also you can brick it again and this will solve it again !!!!
4) at each step, if you don't know the meanings, just search this forum.
Instruction:
1) download nvFlash + driver + CMW files + my script (included at the end).
2) put your tablet in the APX mode:
yes, you are at boot loop, but you can push the power button for 10sec. you will be off for a while, instantly push rotation lock key then add power button, wait for 2 second and release both buttons, you are at APX mode now, at the device manager of your control panel you can see APX installed.
3) install APX drivers:
if device start to loop before installing driver go to 2.
install driver from downloded files, drivers folder. windows say something! ignore it! and install driver
4)now we start to put recovery image to your SOS partition, it can help the device come back from loop!
(learn how to go into APX mode)
run my scrip from downloded files (alikghp.bat)
choose install CWM5.0,
go to APX mode and wait.
you will see big PASS on your device.
5) copy
a. clockworkmod folder and it's content
b. ThinkPadTablet_A310_02_0039_0089_ROW.zip
c. ThinkPadTablet_A310_03_0069_0121_ROW.zip
d. ThinkPadTablet_A400_03_0070_0132_ROW.zip
from downloaded files to a SDcard and insert SDcard to your tablet.
6) turn off your device, go to recovery mode (power (after vibration release power, push Vol.up 2 or 3 times), you will see the CWM recovery.
YES you break the DEVIL's LOOP!
7) use Vol.up, Vil.down and power to choose -backup and restore, then
-restore from external sdcard.
the -yes.
be patient and wait until to end.
8) at CWM's main menu choose -install zip from sdcard. then
-choose zip from external sdcard.
-choose ThinkPadTablet_A310_02_0039_0089_ROW.zip
9) again run alikghp.bat but this time
choose install OriginalRecovey
after see the big PASS...
10) turn off, and turn on to recovery mode again.
choose wipe data/factory reset. wait until finish.
choose reboot system now.
11) your tablet back to life. with A310_02_0039_0089_ROW !!! wait until it it's jobs done!
12) turn off and turn on to recovery mode again. choose apply update from external storage.
choose ThinkPadTablet_A310_03_0069_0121_ROW. after finishing reboot and wait wait until it it's jobs done!
repeate this step and
choose ThinkPadTablet_A400_03_0070_0132_ROW after finishing reboot and wait wait until it it's jobs done!
it's done.
now you can root and install CM10 again, (refer to Introduction above) BUT this time make sure your Nandroid backup is healthy and pull it on your hard disk to safety.
==============================================================================
Download files here:
https://drive.google.com/file/d/0B5cPsgBIMN0JLWdlM00wLUlYZEE/edit?usp=sharing
==============================================================================
ENJOY!!! By:Ali Ghodratipour
Click to expand...
Click to collapse

Ive upload files again
Dear friend, I tried to upload my script, however the post is so old and I don't have all the files. But you can find all of them in this forum and in the internet. just google the file's names. I wish you luck!
Here you can download stock ROMs:
http://download.lenovo.com/slates/think/tablet1
for NVFlash this link can help you:
http://forum.xda-developers.com/showthread.php?t=1745450
I am not Chinese but this website + google chrome translator is something
http://cnzhx.net/blog/apx-root-thinkpad-tablet/