Hello everyone,

I got a MiTech 9.7" Tablet (Model M91) from a friend. It's somewhat broken, so he didn't need it anymore.

I thought I could repair it, but I'm stuck on basic problems:

• It recognizes USB connection in a running Android and the KitKat screen for a data connection pops up. But no usable connection is ever established.
• Also there is a slider in the development section, but I can't enable it, although I can activate the USB debug checkbox... without it having any effect.
• I haven't been able to establish an adb connection either.
• And I can't find out a proper button combination to get into recovery.
• Besides I get countless errors about google play service, gapps and other basic services crashing. Which makes using the tablet quite impossible.

I hope someone can help me with this. I'll present any needed information if possible. I just want to reflash a usable system to this little beast...

I'm running an ArchLinux with adb and android udev rules installed.