[Android] How to Display 'Developer Options' and Enable 'USB Debugging' on Nexus 7

Tap the Build number seven times to reveal Developer Options on the Nexus 7 and enable USB Debugging.

[Android] How to Fix Nexus7 When It Won't Start

Bringing a fully discharged Nexus 7 back to life with a long power-button press or the power + volume-key combo.