Create custom firmware for: iPhone 2G, iPhone 3G, iPhone 3GS with early bootrom, iPod touch 1G, and iPod touch 2G with early bootrom.

From Dev-Team:

PwnageTool 3.1.5 for Mac OS X will let you do so safely, preserving your jailbreak and ultrasn0w unlock. (If you use the blacksn0w unlock (at baseband 05.11.07), you need to stay at 3.1.2.)

iPhone 3G and 3GS unlockers should always be very wary to update their firmware. This is no exception. If you make a mistake along the way you may find yourself updating to official 3.1.3 in which case you will lose your unlock, possibly forever.

iPhone 3GS users (regardless of unlock) should stay away from this and all 3.1.3 jailbreak tools unless you know you have your ďSHSH hashesĒ backed up via Cydia. Thatís because if you make a mistake you may find yourself stuck at official 3.1.3 with no way to jailbreak or come back down to 3.1.2 to jailbreak.

If you really truly feel that you need to update, this version creates a custom 3.1.3 IPSW for you to restore to on your iPhone 2G, iPhone 3G, iPhone 3GS with early bootrom, iPod touch 1G, and iPod touch 2G with early bootrom. If you donít know if you have an early bootrom or not, please avoid updating until you learn more.

You donít need to be pre-jailbroken on anything but the iPod touch 2G early bootrom. And really for that device, itís faster and easier to use redsn0w 0.9.4 as mentioned in our last post. For that matter, if you have an ipt1g, iphone2g, or iphone3g(and donít need an unlock), you should use redsn0w too (but version 0.9.3). Itís faster and you wonít have to go through a full restore process (just do an update then run redsn0w, pointing it at 3.1.2 FW instead of 3.1.3).

If you have an iPhone 3GS, PwnageTool works if youíre currently at version 3.1.2 or below (down to 3.0). You donít need to be already jailbroken ó PwnageTool will ask you if youíre jailbroken after youíve created the IPSW. Donít use PwnageTool on the iPhone 3GS if youíre at 3.1.3, it just wonít work. Downgrade to 3.1.2 using the methods described HERE. If you canít downgrade because you donít have your 3GS 3.1.2 hashes on file with Cydia, youíll need to sit out the 3.1.3 jailbreak.

We arenít revealing any new exploits to Apple with this jailbreak. Everything here has been used before, itís just a straightforward port of Pwnage2 and 24Kpwn to the new firmware. Itís possible the new firmware was released largely to flush out new exploits before the next big release. We wonít be biting.

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