I see all people here trying to use CWM to backup and restore ROM's on A13 tablets and i understand people are used to use CWM from android phones and tablets, but here
on A13 allwinner CWM is not working.
Now let me explain why.
CWM is used to backup only kernel (boot.img), recovery and system.tgz+data.tgz(ROM+user data) but CWM is not backing up bootloader (bootloader.img).
Now why the heck i need bootloader to be backup on A13 tablet and on my SGS2 not ???
- SGS2 have same components on all phones TS/camera/gsensor/gps/fm and this is why he use a single bootloader that don't need to be changed/backup/restore.
- A13 are different even from same manufacturer, you don't find same TS/camera/gsensor/gps/fm on same lot of tablets so you will need a new bootloader for every lot if you use today one TS next month another TS.
I'm not against CWM, i use everyday for my android devices but not on A13 because have no effect.
I hope all people understand now why they can't use CWM on A13 tablets or maybe someone can make a special CWM for A13 but with support for backup/restore bootloader too.