Before you start, you may want to back up your phone to a PC, as a factory reset will erase all email, contacts and personal information.
- On the home screen of the Z10, drag down from the top and select Settings
- Select Security and Privacy.
- Select Security Wipe.
- Type in the word blackberry to confirm and select Delete Data.
- The device will now reset. All user information and installed applications will be erased.