I'm experiencing the following MAJOR issues on 3.1 and 3.5:
In recovery, rebooting takes more than 5 minutes each time.
Flashing any zip leads to the flashing process pausing for about 5 minutes (for example the text is stuck at 'Unmounting System') before rebooting seemingly before the zip has flashed. Upon further investigation, I found out the zip didn't flash. This means, a) Im out of recovery, b) it takes a long time and, most importantly, c) THE ZIP DOES NOT FLASH. ie I can't flash anything.
Backing up also causes this pause and reboot, and when I try to restore it, it says 'MD5 mismatch'.
Weirdly I could flash the kernels in recovery.
How would I fix this?
I have tried wiping cache and Dalvik cache, flashing both kernels using recovery and mobile odin, changing roms, all to no avail.
FYI I was running JZO54k xxls7 then ultimate xxls7 v3 then ultimate xxls7 v4, all flashed by going back to stock prerooted gb kj1