It seems that the Dev Team finally managed to jailbreak OS 3.1 for the iPhone 3GS! Dev Team member cpich3g tweeted the following info earlier today:

3gs 3.0 pwned->3.1 pwned. Props to Musclenerd, Wizdaz and thanks Bumble-Bee & ToddJG for testing.

The 2 links take you to screenshots (see image above) showing firmware 3.1 running along with baseband 04.26.08. In other words, it means that they managed to jailbreak 3.1 without updating the baseband, which means that the iPhone 3GS can also be unlocked using UltraSn0w.

So what’s next? I guess the Dev Team will write an official post on their blog soon to announce the iPhone 3GS jailbreak for OS 3.1. Then they will most likely release an update of PwnageTool and UltraSn0w.

Of course, I will post more info as it becomes available.

  • Tom

    Sounds awesome!

    Will this also apply to 2g?
    Couse i updated via itunes by accident. =(

  • chtrich

    Nice…….Been holding out on my 3G with PC. Waiting and waiting.

  • T-Will

    I’m here waiting for the Windows version of the unlock/JB for the 2G…not that I’m looking forward to reinstalling my Cydia apps and tweaks. ๐Ÿ˜‰

  • Hey guys,

    You can already jailbreak and unlock the iPhone 2G and 3G on 3.1. You need a Mac though…


  • T-Will

    Yeah, I don’t have access to a Mac.

  • jccanepa

    If you donยดt have access to a mac, you can download a custom firmware 3.1 ๐Ÿ˜€
    Just put your iphone in DFU mode and restore with that custom 3.1

  • gurdz

    does this mean the baseband on my iphone 3g can be changed from 5.09 back to 5.08? because i need my 5.09 iphone unlocked on all networks. thanks

  • T-Will

    I haven’t done much research, but I thought I read that updating with the custom 3.1 firmware is risky. Is that true?

  • @gurdz No you will need a custom firmware so it doesn’t update the baseband.

    @T-Will Yes updating to 3.1 is dangerous because you will update the baseband, making it impossible to unlock. You have to use PwnageTool to jailbreak so it doesn’t update the baseband.


  • T-Will

    My understanding is that on the 2G the baseband isn’t updated.

    I thought I was reading on some forum that recommended against installing the hacked 3.1 firmware on the 2G though.

  • gurdz

    do you think they will ever find a way to downgrade the baseband for peoples whos is 5.09?

  • solarwind

    @sebastien: you mean impossible to unlock baseband at the moment, or impossible forever? Because I recently bought a 3GS which came with lastest 3.1 firmware and all that. I’m eagerly waiting for the 3GS 3.1 jailbreak.

  • I mean that it’s impossible to unlock this baseband at the moment. I’m sure that they’ll eventually find a way to hack into that bitch ๐Ÿ™‚

  • Steve

    So, if they release a jailbreak for 3.1 can i jailbreak the iphone i got for my girlfriend today. It has 3.1 on it already. I dont need to put any other sim card in it so i dont think i need to unlock it.
    All i want is to put cydia on it to install sbsettings and a few other tweaks like winterboard. I already have my 3GS jailbroken as i got it a couple months ago. All the new iphone stock is 3.1 ๐Ÿ™

    Hope someone can clear this up.

  • dotel

    @Steve I think the latest twitter says the current jailbreak won’t work for a 3GS that was bought with 3.1 already installed. Hope they can in the future, though…

  • Frank West

    I wanna know if you are able to jailbreak an iPhone 3G with 3.0.1.

    I just installed 3.0.1 from my 3.0 using Apple iTunes to update the iPhone. Why? Cause I wanted mms and didn’t want to do all the complicated crap to work around it.

    My question is, can I now jailbreak my 3.0.1 iPhone even if I used iTunes to upgrade? If so, how?

    Be detailed in an answer please?

  • W7User

    are you guys following Chronic Dev’s GreenP0ison…

  • chris

    unfortunatly, everyone who can’t downgrade their 3.1 iPhone 3gs because they didn’t store their ecid on cydia, or those who bought an iPhone with 3.1 on it will NOT be able to jailbreak according to the dev team members last tweet.I’m one of these people who didn’t store my ecid. this sucks

  • solarwind

    @chris thats what this whole post is about. The dev team managed to jailbreak 3.1 3GS and it’s going to be released soon.

  • @Frank 2g,3g & 3gs all can jb and unlocked running fw 3.0.1 .
    2g and 3g only can be jb and unlocked running fw 3.1. Via custom ispw on windows or pwnagetool on mac.
    3gs we need to wait for dev team, to release a tool so it doesn’t affect our baseband when we update.
    Golden rule donot update to 3.1 via iTunes on your 3gs if want to be able to jb and unlock via ultrasn0w.

  • Kizz

    Solarwind, this is what Chris is talking about:

    First Tweet
    # 3gs 3.0 pwned->3.1 pwned. Props to Musclenerd, Wizdaz and thanks Bumble-Bee & ToddJG for testing. about 20 hours ago from web

    Second Tweet
    # Further to my last post, the 3gs 3.1 jailbreak does not apply to OTB or non-downgradable 3.1 device about 8 hours ago from mobile web

  • Cayman (Attila)

    “Further to my last post, the 3gs 3.1 jailbreak does not apply to OTB or non-downgradable 3.1 device”…yes i wanted ask about this too. What’s that mean exactly? 3GS is my first iphone, i have updated to 3.1 before a few minutes i read the “golden rule”, unfortunately. so i couldnt save anything trough cydia or what…but in my opinion, that tells if i didnt save anything i cant downgrade, and if i cant downgrade, i cant jailbreak even with this new jaiblreak for 3gs. Right?

  • NOS

    Woohoo! Good job boys!!

  • Rob

    Cayman, your right. It seems that to have a JB on 3.1 you need to either have a 3gs with firmware 3.0 or 3.01.

    People who are able to downgrade to 3.0 using cydias server will be able to have a JB 3.1 firmware but won’t be able to unlock as the older baseband wouldn’t have being preserved.

    Those with a 3gs running 3.1 either out of the box or those that upgraded without saving ECID will have to wait for something else. Most likely greenpois0n by chronic dev team. They have recently given an update on there blog so watch that space for a solution soon.

  • Marauder2222

    I update to3.1 thru iTunes. 3g on windows vista. Just jailbroke using ih8sn0w usind a custom 3.1. Jailbreak is perfect and worked very easily. All I can say is thank the lord.

  • I am so happy that a jailbreak Came out for maC for the iphone 3gs. Do window’s user’s have to wait for another jailbreak. Go Dev team.

  • Cayman (Attila)

    Rob: thanks, im not too happy but i can blame only myself cause i did the update before i read about jailbreak. Maybe greenpoison will give us redemption soon ๐Ÿ™‚ or the iphone dev-team. I found the chronic dev-team blog’s and twitter and much more, i’ll follow them too, but i beleive Sebastien will let us know if something comes out ๐Ÿ™‚

  • Solarwind

    @rob ah, now I get it

  • Anthony

    I don’t care about / need to unlock, I only care about the jailbreak. Is there going to be a solution for me, so I an upgrade the baseband and get any benefits it may have?

    I’m sure it has to do something to increase the reliability of my phone. Currently, 5 bars of 3G service doesn’t even mean I can check my email reliably.

  • NWcruiser

    people on these posts here are getting all excited over bullSh*t.. What the hell good is jailbreaking for anyway. The most important thing on this phone or on any of these GSM phones for that matter is tethering and all these so called updates/hacks dont allow you to go back to tethering (in the US) all the rest of it is Cra*p

    look folks the official OS3.

  • NWcruiser

    look folks the official OS3.1 upgrade also upgraded the baseband to version 5.11.09. Bottom line tethering is dead no way to bring it back, at least not by just a jailbreak. We love the dev team but I think this time they’re beat.

  • solarwind

    @NWcruiser how do you know that? I’m pretty sure you know next to nothing of the hardware/software side of the iPhone and so far I don’t either. So there is still a possibility of things working out.

  • Hermn8r

    Sorry if this is a newbie question, but here goes.

    I have a 3GS on OS 3.0 JB via Redsn0w. I’ve created a custom 3.1 ipsw using today’s release of the Pwnage Tool.

    My question is this: If I restore using this custom ipsw, will all my Cydia apps and tweaks need to be reinstalled? Or will the Pwnage Tool simply update my firmware? Thanks in advance.

  • @Hermn8r You will have to reinstall all your Cydia apps and tweaks. I now, it sucks…

  • NWcruiser

    OH MY GOD… what idiocy. I will say it ONE last time. TETHERING with the Iphone 3G and 3GS with official apple 3.1 upgrade or out of the Box 3G or 3GS IS DEAD..DEAD..DEAD. The Dev team WILL NEVER…NEVER…NEVER bring it back. A few and I mean a VERY few people either updated using ONLY Dev-team software or did not update at all. Those people can still tether. But NO ONE and I mean NO ONE else (which is pretty much all the rest of us) can tether ever again. There is NO HACK, NO WORKAROUND, or NO TRICK that will ever bring tethering back. News flash I work at apple so I know what I’m talking about. The ONLY important thing about any of these phones is tethering all the rest is bullshi*t…AND TETHERING with and up to date iphone is DEAD..PROVE ME WRONG..

  • What about pdaNet from cydia to ‘tether’??

  • Wags

    Guess what!! I have 3.1 on a 3gs and CAN tether!! I’m with Rogers…

  • Lulu

    How exactly do you tether with a 3.0.1 version of the 16gb iphone 3gs? o.o
    Mine was bought recently, and I attempted to jailbreak… needless to say, it failed miserably…
    any suggestions on how to tether it?