To Use Jailbreak iPhone-3g with iTunes, merely use the iReb for 3g iphone then shift restore with iTunes. iPhone-3g Jailbreak sn0wbreeze 3G-4.2.1
Follow these steps if you want to jailbreak your iPhone device:-
1. Fisrt Download a more recent IOS version for your iPhone. If you are doing not have the latest version of ITunes, then download it still. Also, bear in mind to download a jailbreaking software that it reputed to be economical and effective.
4. Store the IPSW file to a known location that you’ll be able to simply access. you’ll be accessing this file once more soon.
5. Connect your ITunes to your device. Through this, your device are going to be detected. If an choice pops up asking you to update, ignore it.
6. Instead, select the Restore choice. However, take note to try and do hold the Shift button whereas clicking the Restore button. this may activate the IPSW file that you simply downloaded earlier.
7. Now Wait as ITunes configures the changes that you simply created the choices that you simply selected.
8. Now Run the jailbreaking software that you simply downloaded. Afterwards, run the IPSW file still. Hit Next.
9. Now Install the Cydia program and enable multi tasking by putting a check on their choice boxes.