1. TURN ON DEVICE: Press and hold the Power/Lock button until the screen lights up.
   Note: If you are unable to turn your device on, plug the device into a power source for 15 minutes, and then try again.
   
2. TURN OFF DEVICE: Press and hold the Power/Lock button. Select Power off.
   Note: If you are unable to turn your device off with the Power/Lock button, remove and re-insert the battery. For more information on removing and re-inserting the battery, please see the Phone Assembly tutorial.