Needed:
redsn0w (Windows) or redsn0w (Mac)
iPhone3,1_4.3.1_8G4_Restore.ipsw
Step 1
Launch redsn0w.


Step 2
Browse to the ipsw file for your device. Redsn0w will process the file.


Step 3
After the ipsw is identified, click Next to continue.

At this point, redsn0w will patch the file.

Step 4
Select your options here.

Step 5
Follow the instructions to place the device in DFU mode.







The iPhone will finish it's process and then reboot JAILBROKEN!

Enjoy!

vBulletin Message