Download from here : http://euploadcool.com/Lira90612/iPhone Restore now select the custom firmware that was created by Sn0wbreeze on your desktop and click ok now iTunes will start restoring your iphone once done your iphone will be jailbroken on firmware 3.1.3.!! PLEASE DO NOT USE FIRMWARE 3.1.3 !!! IF YOU ARE GOING TO WANT YOUR IPHONE UNLOCKED. WITH 3.1.3 YOU WILL BE LOCKED TO AT&T If you want your iphone unlockable USE FIRMWARE 3.1.2 IN PLACE OF 3.1.3 and follow all the same steps