How to Enter Unlock Codes on BlackBerry 8700/8700c/8700g
Note: SIM is REQUIRED to unlock the phone. SIM card can be inactive, doesn't need to active. After phone is unlocked, remove the battery, insert SIM as desired and re-insert the battery. Phone MUST be restarted to use the new SIM card.
1) Power on
2) Go to Settings
3) Go to Options
4) Go to Advanced Options
5) Go to Sim Card
6) HOLD ALT and press: mepe (Please note that you will NOT see what you type on the screen)
6) It will ask you for the unlock code. Enter it and then press jog dial to confirm and your phone is unlocked!