For many weeks, patient iPod and iPhone enthusiasts have been awaiting the day when their devices could be jailbroken and unlocked on the iOS 4 software update just released by Apple on Monday. Thanks to the very hard work of a bright group of over two dozen intelligent individuals known as the iPhone dev-team, the day for device freedom has finally arrived.
The group just finished compiling and releasing a fresh update to its PwnageTool utility in the form of version 4.0 and quickly updated it to version 4.01 to fix an iBook issue. The latest hack will work with any previously jailbroken iPhone 3G, iPhone 3GS and second-gen iPod touch models. However, it will not work with the original iPhone (2007), the first-gen iPod touch (2007) or the current third-gen iPod touch (2009).
For iPhone 3GS users, the dev-team has cautioned that PwnageTool 4.01 only works on previously jailbroken iPhone 3GS devices with the old bootrom that did NOT use the Spirit JailBreak utility. Users who fall under this niche are suggested to create the ipsw with PwnageTool 4.01 and restore their phones using the jailbroken recovery mode. Once again, iPhone 3GS devices with the newer bootrom are NOT supported by PwnageTool 4.01.
For iPhone 3G users running jailbroken 3.1.2 firmware who have not used Spirit JB, the dev-team suggests creating an ipsw with PwnageTool 4.01 and restoring from recovery mode or DFU mode. For iPhone 3G users running jailbroken 3.1.3 firmware, it is very possible that updating via recovery mode can fail. If this happens, it is suggested to restore using DFU mode with PwnageTool 4.01
For iPod touch 2G users (non-MC models) running jailbroken firmware who did NOT use SpiritJB, it is suggested to restore the device using recovery mode.
Regarding iPhone 3G and iPhone 3GS unlocking on iOS4, the dev-team states that any device jailbroken using PwnageTool 4.01 can be unlocked by installing ultrasn0w from Cydia. We find this will be particularly useful to the thousands of iPhone 3G and iPhone 3GS owners out there who want to sell their devices on eBay to stock up on cash for the iPhone 4, but want their devices to feature the latest iOS 4 software update to appeal to the largest audience of buyers.
At the moment, PwnageTool 4.01 only available for Mac users and can be downloaded here.