1. To power the device on, press and hold the Power/Lock key.
   
2. If your device will not power on, try plugging it into a power source for 15 minutes, then try again.
   
3. To power the device off, press and hold the Power/Lock key.
   
4. Tap Power off.
   
5. If your device will not power off, or becomes unresponsive, press and hold the Power/Lock key for 10 seconds to perform a soft reset.