Contribution d'origine par : Tony Gines ,
Did a quick google search and came across these instructions. Make sure you create a backup of the phone if possible. # Back up all data. # From the Start screen, touch the screen and slide left. # Scroll down to and tap Settings. # Scroll down to and tap about. # Scroll down to and tap reset your phone. # Read the warning about your personal content being erased, then tap yes. # Tap yes again to confirm.