If you need unlock code means you can get the unlock code here Ihav.net after that get the unlock instruction here mobileunlockguide.com to your mobile Blackberry 8120...This unlocking process based on IMEI number..You can get the IMEI number using * # 0 6 #...When you receive unlock codes for your phone, they will look like some symbols followed by a long number and then some more symbols.
There is only one unlock code for most handsets as soon as you get the "phone unlocked" message and then use a SIM from another network in the handset....You can only have five failed attempts before your phone removes the option of being unlocked..