Find "Security Wipe"
Press the Menu key twice.
Press Options.
Press Security.
Press Security Wipe.
Restore the factory default settings
Press Emails, Contacts, etc., User Installed Applications and Media Card.
When the box next to a menu item is ticked (V), the selected data will be deleted.
Press the field and key in blackberry
Press Wipe.
The default settings are restored.
The default settings are restored.