Originally posted by Siimply
As far as I know it is not possible to unlock the 3.1.3... I know a guy who was a phone technician for Verizon, and he runs a big iphone unlocking business where I'm at, and even on his Craigs List AD, he's stated you can not unlock 3.1.3, and you'll have to wait till 3.1.4 comes out, because the 3.1.3 baseband is not unlockable. He's a very trustworthy guy, and he even gets business through the T-Mobile store here, people there refer people that come in with iPhone problems to him.. And I've talked with him a few times, done business with him. Sorry to troll, but I would not recommend anyone to attempt messing with the 3.1.3 FW.