Use Pwnage Tool to Jailbreak it (Mac only). There is a link for the official Bittorrent release here, http://blog.iphone-dev.org/post/1264...ois-drei-h-rom. That will restore the phone, jailbreak it, and put Cydia and Icy on it. Choose restore to factory settings, when prompted in iTunes. Then open Cydia and follow these directions to unlock with ultrasn0w, http://blog.iphone-dev.org/post/128573459/ultras-now Watch a Youtube how to video before hand if you want.
