Phone Unlock Instructions for BlackBerry 8830:

Notice: If the phone shows '0' tries remaining, your phone has
already been hardlocked and cannot be unlocked by code. Even if
you correctly enter the code your phone will still say "Code Error,
Please Wait...".
SIM is REQUIRED to unlock the phone. SIM card can be inactive, it
does not need to be activated. After your phone is unlocked,
remove the battery, insert the SIM card you want to use and re-
insert the battery. Phone MUST be restarted to use the new SIM
card.
AT&T and T-Mobile WILL NOT work: This is a dual-band phone, it
WILL NOT work in North America but will work fine in Europe,
Asia, South America, and anywhere else where they use the
other set of frequencies.
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: mep2 (Please note that you will NOT see
what you type on the screen)
7) It will ask you for the unlock code. Enter it and then press
trackball to confirm and your phone is unlocked!
If your phone shows '10' tries remaining every time you enter the
code and you get a code error it means your phone is already
unlocked.