1. To turn the device on, press and hold the Power key until you see LG on the screen.
   
2. To turn the device off, press and hold the Power key.
   
3. Tap Power off.
   
4. Tap OK.
   
5. If you are unable to turn your device on, plug the device into a power source for 15 minutes, and then try again.
   
6. If you are unable to power your device off or if it becomes unresponsive, press and hold the Power/Lock and Volume down keys for 10 seconds, then release and the device will restart.