The BlackBerry Pearl flip phone (8200 series of BlackBerry phones) works like other BlackBerry phones, despite the “flip” feature. When the phone is flipped open, it looks almost exactly like its standard Pearl counterpart. The process of resetting BlackBerry smartphones depends on the specific operating system version the phone is running, instead of the phone you are using.
Open “Options” on the phone.
Select “Security Options” and “General Settings.”
Press the “Menu” button and select “Wipe Handheld.”
Click the check box next to “Include third-party applications” and click “Continue.”
Type “blackberry” with your keypad when you are prompted.
Press “Enter” reset the phone to default.