I tried to find something of the same subject for a couple days now, to no avail. I am trying to fix a friends tablet. When I got it the only thing on it was CWM 22.214.171.124 and I also believe whoever had it before wiped everything!! There is no backup in sight, but I took the various system dumps and created a .zip to at least have the system available. My issue is along with it not booting, when i try to mount /data it seems the tab freezes, also when i try backup it freezes at "backing up data". When I format /data by itself it taked a minute to get to complete along with factory restore. I'm not sure if my /data partition is boofed. When I try to adb it shows ??????? no permissions. I am only able to flash zips. Can I dd if=/dev/zero of=/dev/block/nande with busybox from a flash file safely to zero /data? Is this tab saveable without a backup from this actual device? I just seen a post about this device possibly being nand locked, is that why i cant access /dev/block/nande?