Restart iPad
Press and hold the Power button on the top edge until the power off slider appears
Drag the slider, then wait for 30 seconds for your device to turn off
To turn your device back on, press and hold the top button until you see the Apple logo
Force Restart iPad
Press and hold the Power button (top edge) and the Home button (bottom of screen) at the same time. When the Apple logo appears, release both buttons
Continue holding buttons until the screen goes black
When the Apple logo appears, let go of buttons (the iPad should start up as normal)