Hi ocnbrze,
Alright. I'll try my best, but I don't know much about these tablets.
I've had this Allwinner A23 for a long time, have rooted and overclocked it, quite a while ago. And recently I put an application on that causes it to freeze after booting into the OS. (I can't recall the name of the app, sorry). The only way I can turn it off is to hold the power button down. When I press the power button the shutdown menu comes up, but will not respond to touch.
I have tried the various remedies suggested on the net, i.e. holding power and up volume buttons, until restart, followed by wiping the cache and factory resets. Still, noting prevents the screen freeze. (The factory reset shows a slightly different screen after starting; but it does not respond either.) I can boot into the recovery mode, and I have tried as much as I could, with no joy. The external storage option does not have any entries, even with the SD card installed, which seems strange to me. I can access the OS using ADB in Windows 7. In desperation, I've tried deleting a couple of apps but when I restart ADB they're still there, so I suspect that ADB is only reading the system. Frankly, I don't think that I'm getting access to the OS from Windows 7
It's not a bad tablet for pictures and music. The OS seems to be there but it just won't allow me to do anything.
Here's what I know about it:
It's the Pandigital white 7" screen
Android version 4.22 firmware 2.0.8
A23 processor
Model Q8H
Rooted and overclocked.
I posted a request for help on AndroidTablet.net a while ago, but they seem unable to help. Here's the link.
http://www.androidtablets.net/threads/allwinner-a23-freezing.78625/#post-337627
Thanks for looking at this. I appreciate it.
........ john