1. To turn on, press and hold the Power key.
   
2. To turn off, press and hold the Power key.
   
3. Drag down to power off.
   
4. If you are unable to turn your device on, plug the device into a power source for 15 minutes, and then try again.
   
5. 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.