A new method of untethered jailbreaking for iPhone 4 and iPhone 3GS using PwnageTool has been released by iPhone developer and hacker, nadeem97. The best part of this method is that it doesn’t upgrade or change the baseband of your device. Consequently, you can also unlock your iPhone 4 having baseband 01.59.00 and iPhone 3GS having baseband 05.14.04 by using Ultrasn0w 1.2. Here is the detailed guide of untethered jailbreaking of iPhone4 and iPhone3GS running on iOS 4.2.1. [click to continue…]
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