I dropped my N7 the other day. Panicked for a long time as it wouldn't boot. I pulled the cover off and fixed the thingy holding the buttons to the back. Still nothing. I pulled the cover off again and lo and behold, it hit on the corner hard enough to unplug the battery. I don't know how it could hit this hard without shattering the screen. Straight up on the corner, perpendicular to the ceramic tile floor. Slid the cable back in place, good to go.