Press and hold the top button and either volume button until the power off slider appears
Drag the slider to turn off the iPad
Wait 30 seconds
Press and hold the top button until the Apple logo appears
If the iPad is frozen, quickly press and release the volume up button
Quickly press and release the volume down button
Press and hold the top button until the Apple logo appears
If the iPad has a Home button, press and hold the Home button and the top button until the Apple logo appears