i have recently gotten a blackberry 8700c from a friend of mine who didnt want it anymore it was made for cingular i wanted to get it unlocked and use it for my wife's t-moblie sim but my niece told me she knew how to unlock it when she gave it back to me i got the 507 screen with the 3 different shapes on it. I just ned to know what i can do or what do i ned to downlaod in order to fix this problem. Your help would be greatfully appreciated. I was saving phone for my wife's birthday so im desperate to get prblem fixed.