Tweet How to unlock BlackBerry Curve 8900 phone:

Power on With Activated GSM Sim Card

1. Scroll to and select the Manage Connections icon.
2. Select Turn All Connections Off.
Press the red End key
3. Scroll to and select the Settings icon
4. Scroll to and select the Options icon
5. Scroll to and select Advanced Options
6. Scroll to and select SIM Card
7. Type MEPD Note: When Typing in MEPD the letters will not
appear on the screen. This step opens up the personalization on
the device. Notice under Network, it will say Active.
8. Type MEP2 (For “2″, press the ALT key then 2)
Note: When Typing in MEP2 the letters will not appear on the
screen.
9. Notice the Enter Network MEP code box.
Enter the Unlock code
Press the Trackball or Enter key (once one of these keys is pressed
the device should display “Code Accepted.”)