With firmware 3.1.3 came some seriously bad news for jailbreakers. Basically the whole idea behind the firmware was for Apple to take another step towards ending jailbreaking. The iPhone Dev-Team was quick to jump on this firmware as usual and has come out with a jailbreaking solution for some devices. This jailbreaking solution is the Pwnage Tool for 3.1.3. This tool is only for Mac, but a windows solution would be Sn0w Breeze.
The iPhone Dev-Team post explains what devices can be jailbroken with this tool…
On Tuesday, Apple released firmware 3.1.3 for the iPhone and iPod touches. Unless you’ve personally observed a problem with the reporting of your battery percentage, there’s no reason to update to 3.1.3. We know some of you will want to anyway. Superbowl Sunday’s 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 “SHSH hashes” backed up via Cydia. That’s 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 don’t know if you have an early bootrom or not, please avoid updating until you learn more.
Basically you shouldn’t update to firmware version 3.1.3 unless you really need to or your device comes shipped with that firmware. I expect we will be seeing better tools extending to other devices and offering unlocking in the near future though.
