my nokia 1600 needs unlock code?

Hi,have you tried to insert your sim in a contracted mobile? if so it will not allow you to use other provider's sim in that mobile..to use other provider's sim you have to unlock your mobile.there are many ways of unlocking but the best and safe way of unlocking is by unlock codes..you can get unlock code either from mobileunlocksolutions your provider or you can get it online..one of my friend unlocked his mobile by unlock codes and he got it from and unlocked his mobile..before unlocking your mobile you can get clear instructions about how to unlock your mobile for that you can visit mobileunlockguide to get step by step instructions..