Nexus 7 Tablet is stuck on back arrow.

[AC Question]

Screen is black and pressing buttons does nothing. Buttons do not seem to be stuck. How do I get unstuck?

 

[B. Diddy]

Welcome to Android Central! What were you doing when the screen went black? And are you saying the buttons are still visible? The app you were just using presumably crashed. Does pressing the Home button get you anywhere? If not, press and hold the Power button for about 10 seconds to force a power down. Then turn the tablet back on again.