How to: Unlock iPhone 4, 3GS, 3G with UltraSn0wÄisclaimer: These custom firmwares are for testing and educational purposes only. iPhone 4, 3GS and 3G users who want to unlock iPhone needs to install UltraSn0w using following guide:.It will start restoring your iPhone/iPod Touch which may take 10mins and will jailbreak it.
Press the Shift key for Windows or ALT for Mac and click restore and use the custom IPSW.First time jailbreakers should put their Device into DFU Mode. Windows Users: use HJSplit ( or what ever you want).Mac Users: use BetterZip ( or what ever you want ).
Download custom firmware (IPSW) (all parts) for your device from links below.NOT ACTIVATED: These custom IPSW files are for users who are on Official Carrier.ACTIVATED: These custom IPSW files are for users who want to unlock their iPhone after jailbreak which means they are NOT on Official Carrier.There are two types of Custom Firmwares available for download below.These custom firmware will provide untethered jailbreak.