Use this to Rollback Official / Leaked ICS OS + Bootloader back to Rooted HC 3.2.1, HC bootloader and working accelerometer.
WARNING EXTREMELY DANGEROUS | YMMV | WARNING EXTREMELY DANGEROUS
Original Post by jazzyjames
http://xdaforums.com/showthread.php?t=1516012
WARNING EXTREMELY DANGEROUS | YMMV | WARNING EXTREMELY DANGEROUS
jazzyjame's tutorial How to rollback from ICS leak
***THIS WILL WIPE YOUR DATA***
What you need:
EUU from Timmydean of 3.2.1 V4
http://xdaforums.com/show....php?t=1307539
Your CPUID
Your CPUID was probably changed when you flashed the ICS leak.
Your SBK
How you can find CPUID in the ICS leak
(Refer to just below Step 3 of Civato's V3BOOTLOADER tutorial on how to validate the CPUID and SBK are correct)
***DO NOT PLUG TABLET INTO COMPUTER UNTIL STEP 8******
1. Download and extract root-3.2.1-V4 from Timmydean
2. Run PBJ20upgrade.exe (right click and run as administrator).
3. Click Ok on Make sure your ICONIA TAB is not connected to a computer. If a "New Hardware Wizard" window appears, click "Cancel".
4. Click Next
5. Let it install the USB drivers
6. Click Next and Go to Settings/Applications/Development on your TAB to enable "USB debugging"
7. It will try and scan for the current image version and new image version, this will take about 5 minutes.
8. A dialogue should have appeared on the screen detailing the manual method for putting the tablet into APX mode. Ignore the dialogue for now and go to step 9
9. Enable debugging on your tablet (Settings>Developer>USB Debugging)
10. Use the USB cable to connect ICONIA TAB to the PC
11. Download and run Blackthund3er's awesome A500 management tool to automatically start your tab in APX mode.
Run the .exe as administrator, and choose to "Enter APX MODE".
When the "Enter APX MODE" button return to its original state, it means the tab should be in APX mode with a black blank screen.
Download Blackthund3er's tool:
Blackthund3er A500 management tool
(thanks civato for letting me know about it)
(POINT OF NO RETURN, CONTINUE FURTHER AND YOU MAY BRICK YOUR TAB)
12. Click Yes on the EUU flashing tool dialogue with the manual instructions to place the HC 3.2.1. image and bootloader back onto your tab.
13. Type in your CPUID in the EUU flashing tool, click next.
THIS WILL WIPE YOUR DATA
This will reset your tablet to a Rooted 3.2.1 with WORKING ACCELEROMETER. Once it boots up you can install Acer Recovery installer from the market and install CWM recovery and restore your ROM or flash a new one.
Once done you should have Rooted Honeycomb back on the tab with the old stock HC bootloader and a functional autorotate.
WARNING EXTREMELY DANGEROUS | YMMV | WARNING EXTREMELY DANGEROUS
Original Post by jazzyjames
http://xdaforums.com/showthread.php?t=1516012
WARNING EXTREMELY DANGEROUS | YMMV | WARNING EXTREMELY DANGEROUS
jazzyjame's tutorial How to rollback from ICS leak
***THIS WILL WIPE YOUR DATA***
What you need:
EUU from Timmydean of 3.2.1 V4
http://xdaforums.com/show....php?t=1307539
Your CPUID
Your CPUID was probably changed when you flashed the ICS leak.
Your SBK
How you can find CPUID in the ICS leak
- Download and install a terminal emulator from the market and enter in the following.
- dmesg > /mnt/external_sd/dmesg.txt
- Copy that file to your computer and open it or open it in a text editor on your A500
- Look for androidboot.serialno= and the number is listed is your CPUID.
(Refer to just below Step 3 of Civato's V3BOOTLOADER tutorial on how to validate the CPUID and SBK are correct)
***DO NOT PLUG TABLET INTO COMPUTER UNTIL STEP 8******
1. Download and extract root-3.2.1-V4 from Timmydean
2. Run PBJ20upgrade.exe (right click and run as administrator).
3. Click Ok on Make sure your ICONIA TAB is not connected to a computer. If a "New Hardware Wizard" window appears, click "Cancel".
4. Click Next
5. Let it install the USB drivers
6. Click Next and Go to Settings/Applications/Development on your TAB to enable "USB debugging"
7. It will try and scan for the current image version and new image version, this will take about 5 minutes.
8. A dialogue should have appeared on the screen detailing the manual method for putting the tablet into APX mode. Ignore the dialogue for now and go to step 9
9. Enable debugging on your tablet (Settings>Developer>USB Debugging)
10. Use the USB cable to connect ICONIA TAB to the PC
11. Download and run Blackthund3er's awesome A500 management tool to automatically start your tab in APX mode.
Run the .exe as administrator, and choose to "Enter APX MODE".
When the "Enter APX MODE" button return to its original state, it means the tab should be in APX mode with a black blank screen.
Download Blackthund3er's tool:
Blackthund3er A500 management tool
(thanks civato for letting me know about it)
(POINT OF NO RETURN, CONTINUE FURTHER AND YOU MAY BRICK YOUR TAB)
12. Click Yes on the EUU flashing tool dialogue with the manual instructions to place the HC 3.2.1. image and bootloader back onto your tab.
13. Type in your CPUID in the EUU flashing tool, click next.
THIS WILL WIPE YOUR DATA
This will reset your tablet to a Rooted 3.2.1 with WORKING ACCELEROMETER. Once it boots up you can install Acer Recovery installer from the market and install CWM recovery and restore your ROM or flash a new one.
-----------------------------------------
Once done you should have Rooted Honeycomb back on the tab with the old stock HC bootloader and a functional autorotate.
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