Restart your iPod touch
Learn how to turn your iPod touch off, then back on.
How to restart your iPod touch
Press and hold the top button until the power off slider appears.
Drag the slider, then wait 30 seconds for your device to turn off. If your device is frozen or unresponsive, force restart your device.
To turn your device back on, press and hold the top button until you see the Apple logo.