I got my Mini used with AT&T 4.2.2 stock firmware. Never had any camera issues. I've since tried to flash to some 4.4 ROMs and been getting the purple camera issue infamous on the M7. I've had four variations in all -
1) Stock 4.2.2 w/ 2.19 firmware - No Purple
2) CM11 w/ 2.19 firmware - Purple
3) tr1gg3r84's 4.4.2 + sense 5.5 odex w/ 2.22 firmware - Purple
4) CM11 w/ 2.22 firmware - Purple
First time I flashed to CM11 and then recovered back to #1, and the camera was back to normal. A lot of the M7 forums said it was related to heat, but even after being off for a while I still have this problem. Anyone have any ideas?