Description of the Error:
I have tried to flash the .img files several times. Boot, recovery and userdata all flash just fine. However, when ever I flash system I get the following error:
Failed to process command error (0x120000)
Solution:
Alrighty, it took me 2 days but I finally figured out how to get past this dreaded error.
My Fastboot was unable to flash system.img (but successfully flashed boot, recovery, and userdata) to my rooted, unlocked US Xoom Wi-Fi Only running 3.1, 3.2, and/or 3.21 (yes I tried from all 3 versions using various update.zip methods).
I was attempting to revert to stock using the methods described in multiple threads on XDA, but couldn't get past the 0x120000 error when trying to flash the system.img.
Disclaimer:
This was done on an unlocked, rooted US Wi-Fi Only Xoom running HC 3.1. While this fixed my issue, I take no responsibility if the method does not work on 3G/4G versions, non-US versions, or just plain works differently between different devices. Using dd to flash images is not the safest route, but for me it was the only route.
Prerequisites:
Steps:
I have tried to flash the .img files several times. Boot, recovery and userdata all flash just fine. However, when ever I flash system I get the following error:
Failed to process command error (0x120000)
Solution:
Alrighty, it took me 2 days but I finally figured out how to get past this dreaded error.
My Fastboot was unable to flash system.img (but successfully flashed boot, recovery, and userdata) to my rooted, unlocked US Xoom Wi-Fi Only running 3.1, 3.2, and/or 3.21 (yes I tried from all 3 versions using various update.zip methods).
I was attempting to revert to stock using the methods described in multiple threads on XDA, but couldn't get past the 0x120000 error when trying to flash the system.img.
Disclaimer:
This was done on an unlocked, rooted US Wi-Fi Only Xoom running HC 3.1. While this fixed my issue, I take no responsibility if the method does not work on 3G/4G versions, non-US versions, or just plain works differently between different devices. Using dd to flash images is not the safest route, but for me it was the only route.
Prerequisites:
- Have adb and fastboot setup (e.g., through installing the Android SDK)
- Have CWM Recovery installed on Xoom
Steps:
- Download the stock HWI69 images from bwcorvus' sticky http://forum.xda-developers.com/showthread.php?t=1049485
- Extract the image files into your platform-tools directory in the android-sdk
- Reboot into recovery
Code:
adb push boot.img /sdcard/
adb push system.img /sdcard/
adb push recovery.img /sdcard/
adb push userdata.img /sdcard/
adb shell
su (if it doesn't bring you into root # prompt)
busybox dd if=/sdcard/boot.img of=/dev/block/mmcblk1p7
busybox dd if=/sdcard/system.img of=/dev/block/mmcblk1p8
exit
adb reboot bootloader
fastboot flash recovery recovery.img
fastboot flash userdata userdata.img
fastboot erase cache
fastboot oem lock- Follow lock instructions on device
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