Okay so Ive been searching all over the web and still cant find exactly what I'm looking for. My Iphone is a 3Gs, version 5.0.1, the serial number is xx139xxxxxx, and it is 05.16.05 firmware. AT&T has screwed us over and we want to unlock our phones so we can use a different carrier. Does anyone know what I need to do for this model of IPhone to unlock it? Please help! Thank you so much!