1. To turn the device on, press and hold the Power/Lock key until the screen lights up.
   
2. To turn the device off, press and hold the Power/Lock key.
   
3. Tap Power off.
   
4. Tap OK.
   
5. If the device will not power on, plug it into a power source, then try again.
   
6. 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.