From Repair Mobile
[edit]
How to Enter Unlock Codes on BlackBerry 8800 and 8800 Pearl:
- You must have a SIM card in your phone to complete these steps (can be active or inactive)
Go to settings menu => and then Options
- Select Advanced options => and then Sim card
- Type MEPD using your Blackberry keyboard (NOTE: You will not see any text appear on the
screen while typing MEPD) More details [1] - thanks to cellphonerepair.org
