My Nexus 7 won't charge above 10% for some reason. One day I left it to charge but the battery just drained completely anyway. Then it wouldn't turn on for two days. When it did turn on, after almost half an hour of a blank screen, it only had 7% and wouldn't charge any further, no matter what charger I connected it to. So I just turned it off, but then nothing happened, and now I can't turn it on. Anybody knows how to fix this? I bought mine from
If you can get to a boot animation you should be able to use factory reset from the bootloader (press and hold power and volume down.. May probably for a volume up.. Press)
Maybe you're unlucky and got a lemon -- My NeXus 7 has been rock solid. If you got it from Google Play, I've heard of others contacting them and getting a return and replacement worked out. have some paperwork with it. I'd check that out. Usually that will tell you what to do with a warranty claim. Failing that talk to Staples, see what they say unless you have a recovery installed.
As for backup I tend to just use a file transfer for photos, and let everything else be deleted.. Good chance for a clean up. (you n7 will thank you) but you might have some luck with folder data/android. FYI Nexus 4 stock recovery allows factory reset.. I had assumed it was the same for n7.