A Master reset is the last resort for troubleshooting. This reset erases all data and restore preferences to factory default specifications. Performing a Master reset is only recommended when the existing data has been backed up or is unwanted.
From the main screen, press the Appsbutton.
Select Settings. Utilize the 5-way navigation pad to highlight and the center button to select.
Select Backup & reset.
Select Factory data reset.
Select Resetphone.
Select Erase everything. To set up the device after completing the factory data reset, refer to Initial Activation and Setup