Unlocking these is a piece of cake, just enter the IMEI number into this
link (make a note of your unlock code) and then do the following.
- Remove battery
- Swap the OK SIM card for a different operator SIM
- Replace battery
- Turn on phone (If prompted, enter any PIN number that you may have set on the new SIM).
- Now you should be prompted to enter the unlock code. Do it carefully!
- You should now get some sort of message saying your phone is unlocked