I'm having all sorts of problem (mainly google play store has stopped unexpectedly) and spend hours doing everything on the net to fix it. Nothing works including multiple factory rebuilds so I thought I would upgrade from Gingerbread to a later version. I have downloaded the zip files and put them on my sd card but all the net pages I have read say something like, choose zip from SD card, when in recovery mode to flash/install the software. My problem is that on my mini 2, in recovery mode, I have no option that mentions ZIP - I do have an option that says Apply Upgrade from sdcard. When I choose this option I can see and navigate my sd card but only at Directory level - I cannot see any files (i.e. the zip files). I am a little lost now what to do. Any advice appreciated.