Tech Newz

The iPhone Dev-Team has just released the PwnageTool version 4.3 to untether iOS 4.3.1 jailbreak and to preserve iPhone basebands, so then later on you can unlock your device using the existing version of Ultrasn0w.
For those who don’t know, PwnageTool is a freeware which creates custom IPSW firmware file to jailbreak you iPhone, iPod touch, iPad and Apple TV devices and also preserves iPhone baseband to make you able to unlock your device with Ultrasn0w tool.

WARNING WARNING — ultrasn0w users don’t update yet! See a few paragraphs down!
The 4.3.1 untether exploit comes courtesy of Stefan Esser (@i0n1c on twitter), a security researcher based in Germany. Stefan has a long history of vulnerability research, and ironically his first contribution to the iPhone jailbreak community was improved security — last year he beat Apple to the punch and implemented ASLR for jailbroken iPhones with his “antid0te” framework. We’re happy to see that Stefan then turned his iPhone attention over to an untethered jailbreak exploit!
The 4.3.1 untether works on all devices that actually support 4.3.1 except for the iPad2:
The supported devices with PwnageTool 4.3 can be found after the break:

• iPhone 4 (GSM)
• iPhone 3GS
• iPod touch 4G
• iPod touch 3G
• iPad 1
• AppleTV 2G

The reason the untether won’t work as-is on the iPad2 is that it requires a bootrom or iBoot-level exploit to install, and the iPad2 is not susceptible to either the limera1n or SHAtter bootrom exploits.
WARNING WARNING — ultrasn0w users don’t update yet! We need to first release an update to ultrasn0w that fixes some incompatibilities when FW 4.3.1 is used on the older basebands supported by ultrasn0w. And remember once we do fix ultrasn0w for 4.3.1 (we’ll announce it here and on twitter), you must only get there via a custom IPSW from PwnageTool, Sn0wbreeze or xpwn! Don’t ever try to restore or update to a stock IPSW, or you’ll lose the unlock!

As PwnageTool 4.3 uses the same exploit as Redsn0w which is made by @i0n1c, unfortunately there is no support for iPad 2 because iPad’s 2 exploit was created by @comex which is patched by Apple in iOS 4.3.1. However, iPhone 3G, iPod Touch 2G has been pwned for life and there will be no updates for these devices in future. You can simply jailbreak these devices by following our guides which we have lately posted on our website.
PwnageTool version 4.3 is available for Mac OS X users.
You can download PwnageTool v4.3 from the links below:

• Download PwnageTool v4.3 [Torrent download]

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