Nokia 5800 express Unlocking

Friends,,, a friend of mine has nokia 5800 express.. In pakistan no SIM is supporting.. How can I unlock this software... w8ing for help...

When Unlocking, always use unlocking codes. There are many sites providing unlocking codes. I had a personal experience in unlocking my BB 8900 phone from ClassicUnlocking.com which is a reliable service unlocks the phone within 30 minutes and also cheap.