Database Users

Does Odin Method for CWM Recovery Work on I/O Tab?

Hi folks. I have tried the Odin process three times to try to get CWM functioning on my I/O tab with no luck.
The actual Odin process seems to work fine; however, when I reboot the tab to enter recovery mode; I never get the recovery option. I only have the USB symbol and the downloading option. Also, in the upper left corner, I have:
Fastboot USB download protocol
bootloader version unknown
baseband version %s
serial number:
lock state unlocked
What am i missing? Can the I/O tab use CWM?
Thanks!!

I had the same thing, but when I am trying to root the device it just lock on boot screen. I am not a dummy but something is wrong where several users have diffrent symptoms. I would wait until further development is done. This is still a little shaky.

Odin CWM doesn't work for some reasons ..
Use this post to get rooted
http://forum.xda-developers.com/showpost.php?p=15735928&postcount=2
Follow the instructions carefully !!
Download CWM and do an Install on CWM (it will install 4.0.0.4)
copy the required files to the root directory /sdcard/ (main directory if you don't know)
-Get the roms from HERE
-Get the su_busybox_misc-sam_tab_10.1-051511 HERE
Flash in the ROM 1st .. the apply the SU update (in RECOVERYMOD BEFORE you reboot)
Data / wipe
THEN REBOOT
I missed that 2nd update zip .. and trust me its a pain to get it rooted after that ..
The same procedure will not work again once you're on TW3.1 rom .. you will need an image of the system files and NVflash now..
BTW if you can do NVflash .. then I can send you the image files for 3.1TW rooted ..

fgarcia25 said:
I had the same thing, but when I am trying to root the device it just lock on boot screen. I am not a dummy but something is wrong where several users have diffrent symptoms. I would wait until further development is done. This is still a little shaky.
Click to expand...
Click to collapse
Ha .. I have 3 IO to play with (from friends)..
1st one is rooted out of the box ..
2nd one cannot communicate on FASTBOOT
3rd one does everything nicely (thats the one I had the image extracted with NVFlash)

I'll say it nicely before someone comes to say it rudely, this probably belongs in a general section rather than the development section (that is, until you develop a method to get around the restriction you've found )

Workaround method
http://forum.xda-developers.com/showpost.php?p=16196597&postcount=3
Plus I have the images to go with in case you brick yours
bill.allrobots.org said:
I'll say it nicely before someone comes to say it rudely, this probably belongs in a general section rather than the development section (that is, until you develop a method to get around the restriction you've found )
Click to expand...
Click to collapse

If you have fastboot working, then rooting is as simply as 'fastboot boot [cwm recovery filename].img'
I spent a long time getting fastboot to work, but the only fix was to finally download PDANET software to my PC and install it while it was connected to my tab. After that I got fastboot working.
Fastboot made the rooting process 100% easier. You can root any stock ROM with it and not have to reflash to 3.0.1.

Questions or Problems Should Not Be Posted in the Development Forum
Please Post in the Correct Forums and Read THIS
Moving to General

I had the same problem with my I/O. I finally got a recovery option. What I did was flash the Euro version of TW located in the development section (which is buggy as ****).. After that I Installed CWM and flashed pershoot's root tools. Then I flashed the latest TW Rom. Everything is running smoothly, despite the samsung apps fc. Be weary of the disclaimers located on all the sections I have suggested. All of these steps are at your own risk...

Odin worked on my I/O tab after i put TW on it. I had to boot the tab into CWM via fastboot from a mac

[Q] No way to get "Unlocked BL V8"

I'm not able to flash V8 UNL BL and I don't know why.
I will describe every step I made:
My PB G100W was on stock HC 3.2.1 - stock HC BL so:
- Downgraded to unstable 3.0.1 Acer, rooted, installed recovery (1.7) by Acer Recovery Installer v3.03, backed up by TB and Full Nandroid Backup
- Downloaded both tools (AfterOTA & Blackthunder's tool), first try by AfterOTA, got all info (CPUID&SBK), started with "Bootloader ICS V8&Recovery Thor 1.7.3", ok it does its things, but stucks at "3/4 Recovery ...", no way to carry on. 5,10,15 minutes, no way. Aborted.
- Tried with the second tool, all done following the instructions, APX mode it's ok, but stops at "Flashing Bootloader (EBT) stage two - uploading image...", and no keep on.
- Tried with BT's tool, adding just BL file (Skrillax's site download) , now it's about 30 minutes that it's working and nothing.
What is wrong with the tab?
Please help me
EDIT: I think that I'm in the wrong section..

MadMav88 said:
I'm not able to flash V8 UNL BL and I don't know why.
I will describe every step I made:
My PB G100W was on stock HC 3.2.1 - stock HC BL so:
- Downgraded to unstable 3.0.1 Acer, rooted, installed recovery (1.7) by Acer Recovery Installer v3.03, backed up by TB and Full Nandroid Backup
- Downloaded both tools (AfterOTA & Blackthunder's tool), first try by AfterOTA, got all info (CPUID&SBK), started with "Bootloader ICS V8&Recovery Thor 1.7.3", ok it does its things, but stucks at "3/4 Recovery ...", no way to carry on. 5,10,15 minutes, no way. Aborted.
- Tried with the second tool, all done following the instructions, APX mode it's ok, but stops at "Flashing Bootloader (EBT) stage two - uploading image...", and no keep on.
- Tried with BT's tool, adding just BL file (Skrillax's site download) , now it's about 30 minutes that it's working and nothing.
What is wrong with the tab?
Please help me
EDIT: I think that I'm in the wrong section..
Click to expand...
Click to collapse
Check this thread... I think it will help you. http://forum.xda-developers.com/showthread.php?t=1622425

Yep, I know, that was the starting-point, but no way to figure out how solve my problem.
Already tried few methods...

MadMav88 said:
Yep, I know, that was the starting-point, but no way to figure out how solve my problem.
Already tried few methods...
Click to expand...
Click to collapse
Sent you a PM about running an RUUs file.
Other methods to try.
1. Make sure you have a good USB cable. They are not all created equal.
2. Try using a different USB port (use one connected to the PC mainboard).
3. Disable anti-virus on the PC.
4. Seems Win 7 gives the most consistent results. XP is also good.
MD

How to install any of the JB rom's?

A very simple question, how to install any of the JB roms? Just because i can't find any good simple guide. And i am not familiar with this device, i know how to flash with CWM and such. (I have experience with other devices) But i see that there is someting with a CPUID and a SBK or something? Please explain how to install those roms.

I did some research and is it sufficient to install the acer recovery app to get cwm on your tablet, (3.x) and then install this: http://forum.xda-developers.com/showthread.php?t=1930672 or this: http://forum.xda-developers.com/showthread.php?t=1935582
WITHOUT patching the unlocked ICS bootloader?

It's important to get your CPUID # and save it on .txt file on PC somewhere.
ALL ICS + JB Roms have Different Bootloader then older HC.
It is best to go to to Unlocked ICS Bootloader. Do lots of reading.
A great method to use is APX, then later once on you can change your Recovery to CWM, TWRP, etc
But either way you'll Need your CPUID.
http://forum.xda-developers.com/showthread.php?t=1622425
Run a SBK Generator, enter in your CPUID #, and then Get your own SBK Code.
Later when using APX, enter your info.

ktmdave7 said:
It's important to get your CPUID # and save it on .txt file on PC somewhere.
ALL ICS + JB Roms have Different Bootloader then older HC.
It is best to go to to Unlocked ICS Bootloader. Do lots of reading.
A great method to use is APX, then later once on you can change your Recovery to CWM, TWRP, etc
But either way you'll Need your CPUID.
http://forum.xda-developers.com/showthread.php?t=1622425
Run a SBK Generator, enter in your CPUID #, and then Get your own SBK Code.
Later when using APX, enter your info.
Click to expand...
Click to collapse
Oke, so i should use that blackthunder program and get my cpuid and sbk. then i can use that program to flash my tab in APX mode? And is it dangerous to flash the bootloader? i mean, if your bootloader gets stuck on a galaxy tab or something it needs to be repaired.

I'm trying to explain it the best way I know (might be slightly Politically incorrect with terms) TRY to get the Knowldege as a whole...
-"ICS Unlocked Bootloader 0.03.14-MUL" is for Acer A500 Tablet (it's custom for our tab's) I would NEVER put another Tab's "Bootloader" on our tab.
- I think you meant Flashing another BASED ROM on tab...That is OK.
*** Example Thor2002 HC 14.2 is based on ASUS's ROM, but has CODE for ACER...
*** All Acer A500 JB ROM's (will be BASED on a LEAK from another source (AOKP, ACER A700 ?), then DEV adds/changes in some Acer A500 code to make them work)
-Fact (to my knowledge) : ACER A500 has not had a JB Leak, cus they have never Made a JB ROM
-Maybe a DEV would Use a ACER A200, A501, A700, etc ROM (which sounds more close to ours) then they USE it's JB (if there is a LEAK'd ROM out)
-Dev has to take into Consideration that Bigger ACER ROMS, Might not have Tegra 2 (Dual Core 1000 Mhz stuff) (One Had Tegra 3, some have 1200 Mhz (more Mhz probably doesn't matter) A501 has 3G (so DEV would make Custom ROM with only Wi-Fi , Rip out 3G stuff or change Code lines)
Back to your Question :
1a. I already have flashed a few of the JB roms on Acer a500 and can Flash to Any other JB or ICS Roms (Without changing BOOTLOADER)
1b. I only changed to my ICS Unlocked Bootloader ONCE. Never have to change again, (Unless I want to goto a HC ROM -then I would have to change to older HC Unlocked bootloader)
2a. Some Flash different RECOVERY's (but keep same Unlocked Bootloader)
2b. Current Versions Flash Recovery (for ICS Unlocked Bootloader) : TWRP-2.3.1.0, Thor2002ro-1.7.3 , A500PubRecovery-0.2, AmonRA-Iconia-3.17
***AmonRA v3.16 is for HC, AmonRA v3.17 is for ICS
Awesome ICS ROM: Lightspeed 4.8 (Acer 1.031 based). His ROM checks to see if u have HC, or ICS bootloader, then install the correct HC, or ICS (Kernel or boot.img).
The Way I Understand It is...
1. ICS Bootlader = ICS, JB Roms, Older HC Bootloader=HC ROMS
2. If you Start with any ICS, or JB ROM (the DEV had removed bootloader.blob + Recovery) so you can keep your Bootloader, and Recovery in tack.
3. if you are 100% STOCK Acer A500 ROM ({NO ROOT SuperSU or Superuser}, Stock Bootloader (which is LOCKED), Stock Recovery (can't change, or flash ROM's)
4a. In past on HC ROM's, many would get Stuck on locked bootloaders, and have to REVERT back to HC 3.01 methed, which means install a very unstable HC 3.01 rom just long enough (like 3 minutes) to get Acer Recovery (from market), ROM manager, CWM recovery...so you could flash Superuser.zip and eventually be on HC 3.2.1 with Stable ROM (or anything)
4b.***(NOW, we have to change out bootloaders to goto to ICS (for the most part) or JB {Exception example: Lightspeed 4.8 is ICS ROM (that will accept older HC Bootloader, I'm sure few others ICS have it}
More info here on stuff : Post #5

I got the bootloader but what now?
ktmdave7 said:
I'm trying to explain it the best way I know (might be slightly Politically incorrect with terms) TRY to get the Knowldege as a whole...
-"ICS Unlocked Bootloader 0.03.14-MUL" is for Acer A500 Tablet (it's custom for our tab's) I would NEVER put another Tab's "Bootloader" on our tab.
- I think you meant Flashing another BASED ROM on tab...That is OK.
*** Example Thor2002 HC 14.2 is based on ASUS's ROM, but has CODE for ACER...
*** All Acer A500 JB ROM's (will be BASED on a LEAK from another source (AOKP, ACER A700 ?), then DEV adds/changes in some Acer A500 code to make them work)
-Fact (to my knowledge) : ACER A500 has not had a JB Leak, cus they have never Made a JB ROM
-Maybe a DEV would Use a ACER A200, A501, A700, etc ROM (which sounds more close to ours) then they USE it's JB (if there is a LEAK'd ROM out)
-Dev has to take into Consideration that Bigger ACER ROMS, Might not have Tegra 2 (Dual Core 1000 Mhz stuff) (One Had Tegra 3, some have 1200 Mhz (more Mhz probably doesn't matter) A501 has 3G (so DEV would make Custom ROM with only Wi-Fi , Rip out 3G stuff or change Code lines)
Back to your Question :
1a. I already have flashed a few of the JB roms on Acer a500 and can Flash to Any other JB or ICS Roms (Without changing BOOTLOADER)
1b. I only changed to my ICS Unlocked Bootloader ONCE. Never have to change again, (Unless I want to goto a HC ROM -then I would have to change to older HC Unlocked bootloader)
2a. Some Flash different RECOVERY's (but keep same Unlocked Bootloader)
2b. Current Versions Flash Recovery (for ICS Unlocked Bootloader) : TWRP-2.3.1.0, Thor2002ro-1.7.3 , A500PubRecovery-0.2, AmonRA-Iconia-3.17
***AmonRA v3.16 is for HC, AmonRA v3.17 is for ICS
Awesome ICS ROM: Lightspeed 4.8 (Acer 1.031 based). His ROM checks to see if u have HC, or ICS bootloader, then install the correct HC, or ICS (Kernel or boot.img).
The Way I Understand It is...
1. ICS Bootlader = ICS, JB Roms, Older HC Bootloader=HC ROMS
2. If you Start with any ICS, or JB ROM (the DEV had removed bootloader.blob + Recovery) so you can keep your Bootloader, and Recovery in tack.
3. if you are 100% STOCK Acer A500 ROM ({NO ROOT SuperSU or Superuser}, Stock Bootloader (which is LOCKED), Stock Recovery (can't change, or flash ROM's)
4a. In past on HC ROM's, many would get Stuck on locked bootloaders, and have to REVERT back to HC 3.01 methed, which means install a very unstable HC 3.01 rom just long enough (like 3 minutes) to get Acer Recovery (from market), ROM manager, CWM recovery...so you could flash Superuser.zip and eventually be on HC 3.2.1 with Stable ROM (or anything)
4b.***(NOW, we have to change out bootloaders to goto to ICS (for the most part) or JB {Exception example: Lightspeed 4.8 is ICS ROM (that will accept older HC Bootloader, I'm sure few others ICS have it}
More info here on stuff : Post #5
Click to expand...
Click to collapse
I installed the unlocked bootloader and wanted to load up the recovery, but it gives a yellow exclamation sign in an android logo. Also when i try to go into recovery mode with a500manager it loads up Honeycomb. When i check my bootloader it is the unlocked CZ bootloader V8. Also i can't enter fastboot with a500 manager. It seems that i do not have a recovery. So i downloaded the acer recovery installer but it requiers root wich i don't have. i already tried different bootloaders like the standard revcovery and the thor 1.7.3 but nothing works. When i load up the tab there is something like CZ Skrillax bootloader v8 Loading primary kernel image.
Do you know why i can't enter recovery?
P.S sorry for bad english.

XFXXFX said:
I installed the unlocked bootloader and wanted to load up the recovery, but it gives a yellow exclamation sign in an android logo. Also when i try to go into recovery mode with a500manager it loads up Honeycomb. When i check my bootloader it is the unlocked CZ bootloader V8. Also i can't enter fastboot with a500 manager. It seems that i do not have a recovery. So i downloaded the acer recovery installer but it requiers root wich i don't have. i already tried different bootloaders like the standard revcovery and the thor 1.7.3 but nothing works. When i load up the tab there is something like CZ Skrillax bootloader v8 Loading primary kernel image.
Do you know why i can't enter recovery?
P.S sorry for bad english.
Click to expand...
Click to collapse
How did you try to enter recovery? "CZ Skrillax bootloader v8 Loading primary kernel image" indicates that you push just the power button. That commands the tablet to boot to whatever OS you have installed. You should hold volume down then push power until the device vibrates. Then you release power while holding still volume -. After a second or two, the "CZ Bootloader V8" would appear along with "loading recovery" on the second line. Then release volume.
Another way, and I've been able to replicate this numerous times on mine, is while the screen is showing "loading primary kernel image" to tap power and release it quickly. MIne would go into recovery that way.

graphdarnell said:
How did you try to enter recovery? "CZ Skrillax bootloader v8 Loading primary kernel image" indicates that you push just the power button. That commands the tablet to boot to whatever OS you have installed. You should hold volume down then push power until the device vibrates. Then you release power while holding still volume -. After a second or two, the "CZ Bootloader V8" would appear along with "loading recovery" on the second line. Then release volume.
Another way, and I've been able to replicate this numerous times on mine, is while the screen is showing "loading primary kernel image" to tap power and release it quickly. MIne would go into recovery that way.
Click to expand...
Click to collapse
I already tried that but it did not help at all. It just show the android logo with exclamation sign. I update the tap with the OTA ICS update and root it and install acer recovery and reflash the bootloader and see what happens. Do you have another idea?

XFXXFX said:
I already tried that but it did not help at all. It just show the android logo with exclamation sign. I update the tap with the OTA ICS update and root it and install acer recovery and reflash the bootloader and see what happens. Do you have another idea?
Click to expand...
Click to collapse
The original question from you was how to install JB Roms. But you keep insisting on installing ICS stock (OTA). What are you really trying to do? I'd suggest that you help yourself by reading the relevant threads in here first before asking for more help. For example, are you aware that mixing unadulterated ICS stock with V8 is a no-no?

XFXXFX said:
I already tried that but it did not help at all. It just show the android logo with exclamation sign. I update the tap with the OTA ICS update and root it and install acer recovery and reflash the bootloader and see what happens. Do you have another idea?
Click to expand...
Click to collapse
u r running stock rom and its overwriting yr custom recovery.....this is all explain ed in the OP of the bootloader guide....reflash bootloader/cwm
1. if u r stock ics then root it
2. delete boot.p file
3. nvflash bootloader/cwm
4. boot to cwm flash jb rom
done...
Sent from my GT-I9300 using Tapatalk 2

Fixed
Sorry for late response.
I updated the tab with OTA ics, and used the blackthundr program to root, then i saw a option to remove the recovery protection. So i used that, and reflashed the unlocked bootloader. Everything worked! I could boot into recovery and installed JB. Everything's fine now. Thx for advice!
Thread may be closed.

XFXXFX said:
Sorry for late response.
I updated the tab with OTA ics, and used the blackthundr program to root, then i saw a option to remove the recovery protection. So i used that, and reflashed the unlocked bootloader. Everything worked! I could boot into recovery and installed JB. Everything's fine now. Thx for advice!
Thread may be closed.
Click to expand...
Click to collapse
Since your problem has been solved, you might want to edit the title of your thread and add the word "SOLVED" so other members know you don't need help anymore.

[Q] Bricked every time i falsh ICS Bootloader

Hello every one
After i try the new Android v4.2.1 rom by randomblame i want to get back to v4.1.2 but i did not format data this is what i think that brick my A500
So i recovered my device via EUUs_SBK_Acer_A500_1.016.05_COM_GEN1
but after that i couldn't flash any ics rom or ics bootloader
every time i try to flash ics bootloader with "blackthund3r_A500_APX_Flash_Tool_v0."@ the device stock during the process and stock in apx mod so i have to recover it again and so on
i have try : BabSector to format partition and try Afterota after th euus recovery but without luck
i can't even flash ics on hc bootloader "lightspeed 4.8"
now i'm running hc 3.2.1 rom by civato
what i'm doing wrong ? Help Please
I'm really missing CM10
bad English ....sorry

haytham-88 said:
Hello every one
After i try the new Android v4.2.1 rom by randomblame i want to get back to v4.1.2 but i did not format data this is what i think that brick my A500
So i recovered my device via EUUs_SBK_Acer_A500_1.016.05_COM_GEN1
Click to expand...
Click to collapse
So you can boot into the OS OK??
Did you root it?
You may have to take an OTA or update.zip to 3.1 first and flash the v8 from that as I'm unsure it will work from 3.0.1
but after that i couldn't flash any ics rom or ics bootloader
every time i try to flash ics bootloader with "blackthund3r_A500_APX_Flash_Tool_v0."@ the device stock during the process and stock in apx mod so i have to recover it again and so on
Click to expand...
Click to collapse
is their an "apx device" listed in hardware and printers or in your pc system tray?
do you get "acer apx mode" displayed on your tab?
now i'm running hc 3.2.1 rom by civato
Click to expand...
Click to collapse
go to the root guide in my sig and Make absolutely certain you do the first 4 steps in that guide.
d/l the latest apx Flash manager tool v 1.0.2 and use the bundle market in it to install bundle #17
OR
use civato's nvflash package instead as this requires your tab to be in apx mode (black screen/pwr lite on) to work AND will give you a more specific error if it fails.
Once the flash is complete BOOT STRAIGHT TO CWM and flash your cm10.1 rom
THEN Do a factory/data reset and enable wipe of /data/ media (in mounts/storage menu) wipe cache and dalvik cache too. Reboot to cm 10.1!!!
Please do all the steps in the order they are given -
If "it doesn't work" we will need you to tell us what is or isn't happening and where in the process it fails!!!
Good luck

Thank you for reply
dibb_nz said:
So you can boot into the OS OK??
Did you root it?
You may have to take an OTA or update.zip to 3.1 first and flash the v8 from that as I'm unsure it will work from 3.0.1
Click to expand...
Click to collapse
Click to expand...
Click to collapse
Yes I can
It's rooted because it is a custom ROM with CWM Recovery 1.3.4 by Thor
Is it OK to flash the ICS Bootloader from HC 3.2.1 "Civato-FLEXSTRIKER-HC.3.2.1 R6-BASE"?
is their an "apx device" listed in hardware and printers or in your pc system tray?
do you get "acer apx mode" displayed on your tab?
Click to expand...
Click to collapse
Yes their is an "apx device"
and my tab shows "entering apx mode..." or something like that ! with ACER logo
go to the root guide in my sig and Make absolutely certain you do the first 4 steps in that guide.
d/l the latest apx Flash manager tool v 1.0.2 and use the bundle market in it to install bundle #17
OR
use civato's nvflash package instead as this requires your tab to be in apx mode (black screen/pwr lite on) to work AND will give you a more specific error if it fails.
Once the flash is complete BOOT STRAIGHT TO CWM and flash your cm10.1 rom
THEN Do a factory/data reset and enable wipe of /data/ media (in mounts/storage menu) wipe cache and dalvik cache too. Reboot to cm 10.1!!!
Please do all the steps in the order they are given -
If "it doesn't work" we will need you to tell us what is or isn't happening and where in the process it fails!!!
Good luck
Click to expand...
Click to collapse
"USB drivers from the Android SDK" on step 1 maybe that is what I need
So I'll give it a try and tell you what happens.
And again thank you for your help.

Well..
I followed your root guide and used Civato's nvflash package, lots of things happened.
file no 1 is the first result
then file no 2 , here is where I get stuck in apx mode again !!
errors i get :
error formating partition 4
error formating partition 6
The thing is, not every time I try to recover my tab it works
I succeed only once of every 15 tries to recover my tab.
so maybe some partitions are messed up or something.
One time, I tried to flash Civato's nvflash package again , and after few times the bootloader was flashed correctly, but the recovery wasn't !!
So, I tried to use fastboot to flash the recovery ... and it went O.K
After that, I restarted to recovery, formated data (factory reset) , cache , delvik cash, flashed the rom, rebooted the tab ...... but nothing happened !!
and i'm stuck here
I've done lots of searching around the forums and most of them recommend BabSector or tdv4_rollback_rom or EUUs .
only EUUs are working, and even that would work one time of around 10 to 20 tries.
do i have to flash the primery kernel via fastboot , and if so, how to get the kernel from the rom?
thanks in advance

haytham-88 said:
Well..
I followed your root guide and used Civato's nvflash package, lots of things happened.
file no 1 is the first result
then file no 2 , here is where I get stuck in apx mode again !!
errors i get :
error formating partition 4
error formating partition 6
The thing is, not every time I try to recover my tab it works
I succeed only once of every 15 tries to recover my tab.
so maybe some partitions are messed up or something.
One time, I tried to flash Civato's nvflash package again , and after few times the bootloader was flashed correctly, but the recovery wasn't !!
So, I tried to use fastboot to flash the recovery ... and it went O.K
After that, I restarted to recovery, formated data (factory reset) , cache , delvik cash, flashed the rom, rebooted the tab ...... but nothing happened !!
Click to expand...
Click to collapse
Boot to fastboot mode
Fastboot erase userdata, cache, system and flexrom - use separate command for each partition, note any write errors and post back.
Fire up apxflash tool....you MUST dump, save then use your tabs BCT when u get to that window - this should repair the bct error shown in the 2nd text file.
Also tick "show nvflash commands " this will show any read/write or partition errors..
If you get partition errors run babsector (d/l in the root guide) and follow the steps I posted there.
Boot directly to recovery and try flashing a rom again
I've done lots of searching around the forums and most of them recommend BabSector or tdv4_rollback_rom or EUUs .
only EUUs are working, and even that would work one time of around 10 to 20 tries.
do i have to flash the primery kernel via fastboot , and if so, how to get the kernel from the rom?
thanks in advance
Click to expand...
Click to collapse
No u shouldn't have to flash a kernel its included in the rom.
A full and complete erase is required first
(If there are errors here like can't read/write or bad data....your tab is toast) if not,
The bct error must be repaired next, else your tab won't flash any rom at all, even if the tool says PASS
Then reset your partitions with babsector.far
(Any errors like those listed above....your tab is toast)
With all the errors you're having its pointing to a faulty chip, flashing should not be this problematic.
Be sure to follow the direct order of repair....otherwise you'll be compounding errors
Sent from my A500 using Tapatalk 2

Sorry for my late reply
I didn't run apxflash tool I have try something before that I have flash a HC rom over the ICS bootloder "it is wrong I know" but it went OK and the tab boot to the rom!!!!!!!!!
So now I have ICS bootloader with HC rom. what is going on ??
I have a new long work "13 hour" and I can't spend alot of time with my tab but I want to understand what is wrong with my tab
I'm really thankful for your time.

haytham-88 said:
Sorry for my late reply
I didn't run apxflash tool I have try something before that I have flash a HC rom over the ICS bootloder "it is wrong I know" but it went OK and the tab boot to the rom!!!!!!!!!
So now I have ICS bootloader with HC rom. what is going on ??
I have a new long work "13 hour" and I can't spend alot of time with my tab but I want to understand what is wrong with my tab
I'm really thankful for your time.
Click to expand...
Click to collapse
Well, thats different!!!
Are you running stock HC or is it a custom one?
Which recovery are you using?
Download Acer Recovery Installer from the market, it will tell you your bootloader version. You will need root priveleges to run this

dibb_nz said:
Well, thats different!!!
Are you running stock HC or is it a custom one?
Click to expand...
Click to collapse
A custom rom, Civato-flexstriker-hc.3.2.1 r6
Which recovery are you using?
Click to expand...
Click to collapse
CWM Recovery v5.5.0.x(thor2002ro/digetx rev1.7.3)
Download Acer Recovery Installer from the market, it will tell you your bootloader version. You will need root priveleges to run this
Click to expand...
Click to collapse
Bootloader Version: 0.03.14-MUL
and i can acsses Skrilax_CZ's bootloader V8 bootmenu Mode and all of it's functions
i think that i did not understand the bootloader thing yet!!!

haytham-88 said:
A custom rom, Civato-flexstriker-hc.3.2.1 r6
CWM Recovery v5.5.0.x(thor2002ro/digetx rev1.7.3)
Bootloader Version: 0.03.14-MUL
and i can acsses Skrilax_CZ's bootloader V8 bootmenu Mode and all of it's functions
i think that i did not understand the bootloader thing yet!!!
Click to expand...
Click to collapse
ok lets start with the bootloader and why we need it...
On most android devices your first step to flashing a custom rom is to root so you can flash a custom recovery....
With our Acer Tabs since HC 3.2 the bootloader is locked...meaning even having root access did not give us the ability to 'flash' a custom recovery - its just not possible....the only way to do it is with the "patched" bootloader - I don't know how the magic works, but the devs managed to find a way to 'trick' the system into allowing their version of "patched bootloader" to be installed which would allow the flashing of a custom recovery....and there is a very specific way of getting this patched or unlocked bootloader onto your tab....this is with a program called "nvFlash" which runs via "apx mode" or "acer download mode" using our tabs unique ID, the cpuid.....to make it even easier The devs created a "package" which will nvFlash the patched bootloader AND a custom recovery all in one go!! Once we'd done that all we needed to do was to boot straight to recovery and flash our desired ICS or JB rom!!!
In the beginning, way back in the day....some folks weren't at all comfortable going to these lengths just to have a custom rom, so some of the rom cooks gave us the choice to upgrade to the patched bootloader or to stick with the HC bootloader, by flashing a custom HC kernel after the bootloader flash....this is what you were alluding to earlier??
Most roms now only work with the patched bootloader i.e. skrilax_cz 3.14 MUL -v8
keep in mind these are ICS and JB roms...
I hope that provides a bit more understanding on the bootloader thing and why we need it...
Now back to your original problem, not sure why you cannot flash a JB rom, have you tried it again??? I just cannot think of anything that would prevent you from flashing anything except an HC Rom - You might wanna ask the question in the JB rom thread...there might have been specific steps you needed to take to downgrade from 4.2 (can't think what though) or others may have posted similar problems...sorry couldnt help you out ....
...but let us know how you get on, good luck!!

Finally I have moved from HC to JB and that is how :
- ubdating the bootloader from v8 to v9
- nothing changed trying to flash any rom I already have
- then and I don't know why I download an Android 4.3.1 from TegraOwners forums [WIP]A500/A501 JB-MR2(4.3.1) - V8t6
link http://forum.tegraowners.com/viewtopic.php?f=9&t=1312
flash the rom and everything went OK !!!

Finally Fixed
Finally I have moved from HC to JB and that is how :
- ubdating the bootloader from v8 to v9
- nothing changed trying to flash any rom I already have
- then and I don't know why I download an Android 4.3.1 from TegraOwners forums [WIP]A500/A501 JB-MR2(4.3.1) - V8t6
link http://forum.tegraowners.com/viewtopic.php?f=9&t=1312
flash the rom and everything went OK !!!

Update fails - want to flash custom rom - need some advice

Now here's the situation:
I'm still on an older ROM version (4.2.1 - see attachment)
A while ago my tablet told me there was an update. I wanted to get it, it downloads but it always fail to apply the update.
What I've done to the device so far is that I've used motochopper to root the device and got rid of some ASUS apps.
So since it refuses to update, I've decided to unlock it, flash a custom recovery and get myself a custom rom.
But I've read a lot about people bricking their devices and I doubt it'll be as easy as it was on Nexus 4 and Nexus 7 - so I need some advice on how exactly to do it.
Recently I found the thread that enables us some sort of nvflash although being on JellyBean. They were talking about a specific version of bootloader and I'm not certain if I have this bootloader since I'm on an older JellyBean version. Of course I would like to use this bricksafe as well - just in case
Can someone lead me to a guide or instruct me how to do it? I don't want to brick this device
Thx in advance

l33ch0r said:
Now here's the situation:
I'm still on an older ROM version (4.2.1 - see attachment)
A while ago my tablet told me there was an update. I wanted to get it, it downloads but it always fail to apply the update.
What I've done to the device so far is that I've used motochopper to root the device and got rid of some ASUS apps.
So since it refuses to update, I've decided to unlock it, flash a custom recovery and get myself a custom rom.
But I've read a lot about people bricking their devices and I doubt it'll be as easy as it was on Nexus 4 and Nexus 7 - so I need some advice on how exactly to do it.
Recently I found the thread that enables us some sort of nvflash although being on JellyBean. They were talking about a specific version of bootloader and I'm not certain if I have this bootloader since I'm on an older JellyBean version. Of course I would like to use this bricksafe as well - just in case
Can someone lead me to a guide or instruct me how to do it? I don't want to brick this device
Thx in advance
Click to expand...
Click to collapse
This THREAD has all the info you need to do NVFlash. It's based on 10.6.1.15 something bootloader which I believe is the same as the latest Asus official. If you're on 4.2 rom, you can flash the flatline img. and generate the necessary files from there. Once that done, you can use either the provided CWM or the latest 4.2 TWRP to flash any compatible custom rom (4.3). Have fun.

graphdarnell said:
This THREAD has all the info you need to do NVFlash. It's based on 10.6.1.15 something bootloader which I believe is the same as the latest Asus official. If you're on 4.2 rom, you can flash the flatline img. and generate the necessary files from there. Once that done, you can use either the provided CWM or the latest 4.2 TWRP to flash any compatible custom rom (4.3). Have fun.
Click to expand...
Click to collapse
First of: thanks for your reply
Guide says something about bootloader 10.6.1.15.3 - I still have an even older one (10.6.1.8...) - will it still work?

l33ch0r said:
First of: thanks for your reply
Guide says something about bootloader 10.6.1.15.3 - I still have an even older one (10.6.1.8...) - will it still work?
Click to expand...
Click to collapse
Yes, that version will work because it is on the 4.2 bootloader.
Sent from my TF300T using xda app-developers app

Only works on unlocked device?
Ok I'll try like this
These are the steps I would do: (I pray someone to look over these steps and correct me if I'm wrong )
1.) Go to asus site and download unlock_v8 and run it so to unlock my tablet.
2.) I go to androidroot.mobi and download flatline_tf300.img and nvflash-tools-win32.zip (win32? Hope that does not stand for 32-bit and hope it will work on 64-bit)
3.) I reboot my device into Fastboot (don't know exactly what that means "Please note that for transformer tablets the fastboot command might require the option "-i 0x0b05"" - at this stage the device is already connected to the pc and just in case it's not in fastboot I should run this command?)
4.) I use cmd.exe to type in these commands. In which directory? In the directory where I unzip the files from nvflash-tools-win32.zip? The guide is not too specific on that.
5.) I type in "$ fastboot flash recovery flatline_device.img" (I know for device I use tf300) which will flash the recovery.
6.) I reboot my device (let android boot?) and reboot again into recovery. (power + vol down?)
7.) I select "Advanced - Wheelie" and Step 1: Flash AndroidRoot BL and find myself with a custom bootloader.
8.) It says the device will power off. Automatically? However, I boot into android and after that reboot again into recovery mode.
9.) I choose Step 2 which will generate wheelie blobs
10.) I follow the on screen prompt to retrieve my blobs (anyone has a screenshot of that? Or is it self-expalantory?)
All this time the device is connected to pc via usb?
11.) Now I reboot my tablet into APX mode - after Step 10: am I still in recovery or booted to Android?
12.) If my tablet is recognized I type "$ wheelie --blob blob.bin" into cmd
13.) Then I will type in the commands to obtain the backups
Still got a few questions though. The device is connected to PC throughout this whole procedure, right? Where to start cmd (do I have to put the files from nvflash-tools into a specific folder from where I start cmd.exe?)
And after this procedure is done do I need to flash anything else? Or will I be then equipped with a working recovery that allows me to flash custom roms?
Thanks in advance for anyone who's taking time to answer my maybe uninformed questions but I'm kind of having troubles following the guide