A master reset (factory reset) restores the original factory settings and erases all user data (including settings and downloaded content) stored in the phone's internal memory. It does not erase data stored on the SIM card or memory card (if available).
Note: If the handset is locked, frozen, or unresponsive, you can perform a master reset using the hardware keys instead of the menu.
Note: Timing is critical in pressing/releasing keys.
To perform a master reset using hardware keys, follow these steps:
Note: If you unintentionally press the Volume Down, Volume Up and Power keys simultaneously, the phone will display a circle icon with two arrows and 'S/W Upgrade, Please wait while upgrading...' message. You will need to pull the battery and restart.
Retrieving data ...