1. Press the Power key to power the device on and off, and to lock / unlock the device screen.
   
2. Press the Custom key to activate the desired custom action.
   Note: This key must be set up in device settings before use.
   
3. Press the Volume keys to adjust the device volume.
   
4. Press the Menu key to view the menu for the current screen. Press and hold to perform a search.
   
5. Press the Home key to return to the home screen. Press and hold to view recently used apps.
   
6. Press the Back key to return to the previous screen.