I got a 16GB Nexus 7 and it's exhibiting the backlight problem (no backlight, so you can just barely make out what's happening on the screen). Before the backlight went off (I know it's not broken because when the device boots I see the word 'Google' and then the Nexus logo for a moment with the backlight on) I tried connecting to a wifi network but it's not available any more, and I can't see enough on the screen to get to the brightness control. Is there a factory reset I can do to maybe fix it?