TURN ON DEVICE: Press and hold the Power/Lock button until the screen lights up. Note: If you are unable to turn your device on, plug the device into a power source for 15 minutes and then try again.
TURN OFF DEVICE: Press and hold the Power/Lock button, then select Power off. Note: You can also press and hold the Power/Lock button for 10 seconds to force restart your device. If you are unable to turn your device off with the Power/Lock button, remove and re-insert the battery.