I got my nexus 7 in early september. I tried to root it but it was unsuccessful for some reason. Since it was working fine and I was leaving on a trip 24 hours later, I just let it go. It has been working great until the last month or so when it has been freezing occasionally requiring a hard boot or not turning on when I press the power button, also requiring a hard boot. Having returned to the US (and my laptop) last week, I had intended to move my data off and reset to factory but now it is stuck. This morning it was working fine and had 100% battery. I then had it in my trunk in @40F temps for about 45 minutes. When I tried turning it on after that, it wouldn't do anything. I tried doing a hard boot and it gets to the google logo screen (not the x) and just stops. I let it sit there for a bit and noticed it was warm when I went back to it. I tried booting it into recovery mode, but that doesnt work. I tried connecting it to my laptop, but though I get the 'bing bong' sound when it is in bootloader mode, it never shows up as a drive. When I power it off from the bootloader, i see the charging icon but nothing else happens. Really hoping someone can make a suggestion on how to get it up and running again as I am leaving the country again in a week so don't have time for warranty work (if it is even still under warranty. Thanks in advance for any suggestions!