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. Select Power off. Note: If you are unable to power your device off or if it becomes unresponsive, press and hold the Power/Lock key for 10 seconds, until it reboots.