[Q] Allwinner A13 - stuck in CWM-recovery loop
Hi Android experts!
I need some assistance fixing a problem I caused & am now stuck in a recovery boot loop.
- bought a Thomson QM734-8G tablet (Allwinner A13b clone), running Jellybean 4.2.2;
- PC interface worked fine in MTP and large storage modes;
- setup Android SDK & Java JDK on PC and communicate with tablet via ADB;
All OK so far
After a couple of days, I decided to replace stock recovery with ClockworkMod Recovery, so I could start messing about with the tablet.
I found the CWM 188.8.131.52 mod supposed to work with these tablets and, following instructions, determined it was indeed running on sun5i hardware and had 10 partitions (nandj) and downloaded the appropriate version.
I used ADB sideload to install CWM and everything appeared to work OK ... until I rebooted and found myself stuck in a never-ending cycle of CWM-based recovery bootloop
All I get is the CWM recovery console, with a few lines of error & the tablet will go no further.
E:can't mount /cache/recovery/command
E:cant mount /cache/recovery/log
E:cant open /cache/recovery/log
E:cant mount /cache/recovery/last_log
E:cant open /cache/recovery/last_log
Also, pretty much none of the CWM functions work properly and nothing will mount through the 'Mounts and Storage' section, although sideload mode still seems to work.
Attempts to use ADB sideload to install a different CWM or other recovery image have all failed, and LiveSuit and PhoenixSuit both have issues detecting the tablet (despite trying various versions of each & following instructions precisely), so I can't flash a replacement ROM to fix things.
At the moment, I just want to rip CWM out and go back to factory recovery mode and have a working tablet again!
Any suggestions on how to resolve this problem would be greatly appreciated
P.S. I think the Bootloader is locked and the tablet is unrooted. Superuser or SuperSU don't want to install properly. However, using ADB, it looks like I can get root access in shell (#).