Our ultrasn0w program uses the at+xlog crash as an injection vector of our unlocking payload â€” and it does so on the 3GS in exactly the same way as on the 3G! But this injection vector will be lost if you update to 3.1 using the official Apple IPSW, which updates the baseband. So stay away from official 3.1 IPSWs until we release the tools that let you update the firmware without updating the baseband.
Watch this video for more:
GeoHotz Releases iPhone 3GS Jailbreak–for Windows Only
Unofficial iPhone hacker George Hotz has released a jailbreak for the iPhone 3GS. Under the name of purplera1n.com, it is for Windows only. I haven’t tried this 3GS jailbreak out, but I would only recommend it if you feel confident with using “other” means of jailbreaking. Personally, I’d stick with the iPhone Dev Team.
This is some exciting stuff for iPhone 3GS users looking to jailbreak/unlock their phones. Stay tuned for more good news, and like always, do not update to the 3.1 firmware if you’re looking to
jailbreak use the ultrasn0w unlock on your iPhone 3GS/3G!