Sometimes a lot of settings we have made in our Blackberry and we want to return it to the default settings for various reasons. Here's how to restore settings to the default blacberry.
Choose Option on Your BB menus >> Scurity Options >> General Setting >> Kick 'Menu' button >> Wipe Handheld.
When shown Enter Blacberry to confirm handheld wipe >> just type 'blacberry'.
Plug Your BB battery out and plug in again. DONE!