UltraSn0w Unlock Released For iPhone 3GS and iPhone 4 Running iOS 5

By , Oct 14, 2011

As promised, the iPhone Dev Team released an update to the UltraSn0w unlock for iOS 5 today. This update allows users with unlockable basebands running iOS 5 to unlock their iPhone 3GS, or iPhone 4.

This version of UltraSn0w (1.2.4) doesn’t add any new basebands to the compatibility list, but if you’re running basebands 4.26.08, 05.11.07, 05.12.01, 05.13.04, or 06.15.00 on the iPhone 3GS, or baseband 01.59.00 on the iPhone 4, then you can unlock your device right now…

If you’ve yet to update to iOS 5, but you have one of the aforementioned qualifying basebands, then you can use our RedSn0w tutorial for Mac, or our Sn0wBreeze tutorial for Windows, to update your iPhone to iOS 5 without updating your baseband.

Again, you must use one of the preservation methods listed above in order to keep your baseband unlockable.

Here are the release notes from the Dev Team regarding 3GS owners, and possible baseband downgrades in some special situations:

Note: there’s a special “trick” that iPhone3GS owners with baseband 06.15 need for iOS5. During the new setup screens you see when you start iOS5 for the first time, you’ll be asked about Location Services. Be sure to select “Disable Location Services” when asked! Later on in the setup, you’ll have the chance to turn on Location Services again when asked if you want to use “Find my iPhone”. It’s fine to turn it back on at that point, if that’s your desire (or you can always go in and enable it in Settings.app).

Also, some iPhone3GS users with the 06.15 baseband may have tried to install iOS5 using a stock IPSW (even though you should never ever try to use a stock IPSW if you’re an ultrasn0w unlocker). If you did try this, your baseband is probably in an inconsistent state, and you’ll need to reflash the 06.15 baseband again (using redsn0w). Be very careful if you use redsn0w to reflash the iPad baseband — don’t interrupt the process! And please avoid using stock IPSWs in the future :) Unlockers should never go near stock IPSWs.

How to Unlock Your iPhone 3GS or iPhone 4 Using UltraSn0w 1.2.4:

Step 1: Verify your baseband is compatible by checking above.

Step 2: Update to iOS 5 using our RedSn0w baseband preservation tutorial or Sn0wBreeze baseband preservation tutorial.

Step 3: If you haven’t already,jJailbreak your device (tethered only for all iPhone users except 3GS old bootrom).

Step 4: Download and install UltraSn0w 1.2.4 from Cydia. (Gevey SIM users, see yesterday’s Gevey SIM post)

Step 5: Test out your unlock by attempting to use a SIM differing from your carrier SIM.

As mentioned, this latest release of UltraSn0w does not add any additional basebands to the compatibility list, so if you’re not on one of the basebands listed above, you will not be able to unlock with UltraSn0w.

If you do happen to qualify, however, head over to Cydia; your package awaits you.

Have you preserved your baseband for unlock? If so, please chime in below…

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  • http://www.facebook.com/people/Khierulrazi-Al-Souissi/100001910536356 Khierulrazi Al Souissi

    Helppppppp
    helppppppp
    helppppppp
    helpppppp!!!!!!!!!!!!!! dev team

    Last night, i just did jailbreak for my iphone 3gs, baseband 6.15.00 to Ios 5.0.1 and it realy did jailbreak to iso 5.0.1….but i have bigg..bigg..biggg problem with my sim card can not be unlocker after i use ultrasnowwwwwwwww….. help meeeee dev teammmm how i gonna do with to unlock my sim card.. ???

    • http://pulse.yahoo.com/_UG2NWAHFGRNUJB7TW4I5HKEULA Pedro Geferson

      Do downgrade !! It´s the solution at the moment. Good luck !!

      • Bing Hanson

        ya but for some reason apple has to be gay and upgrade who knows what so when u try to downgrade on itunes 10.5 it has the 3194 error and ive tried typing that host thing in the file host and nothing works

    • http://www.facebook.com/profile.php?id=100000042556113 Haider Ali

      hey just install utras0w fixer from cydia your sim card will be working
      if you cant find just google it (ultrasow fixer ) :)

  • http://twitter.com/OverDelicia Over Deliciosa

    Hey there….

    I have an iPhone 4 (iOS5) from carrier AT&t from US, but by now, i’m in brazil and have a microship of another carier, but as i could found out, my iphone only works with AT&t.

    there is anything that i can do in order to have my iphone working in brazil under TIM carier service?

    I already have the JB made with redsn0w_ win_0.9.9b7 ~~ but it is working as a iPod…

    Please help me…

    You can contact me on twitter @OverDelicia

  • http://pulse.yahoo.com/_QVDYMJVQI72QTIBOQXHA7MTX3Y Kaz

    Followed all steps including turning off location services on initial start up. Still stuck with no service. Do i need to remove sim before commencing?
    Kaz

  • Anonymous

    I am having the same problem… i updated my 3gs iPhone with bb 6.15.00 to ios 5.0.1… after that i jailbroke it using redsnow… i managed to do that and activated my phone… After that, I went to cydia, installed ultrasn0w 1.2.4, but after the reboot, I get No service on the top left corner… From what i read on the internet, all 3gs users that updated to 5.0.1 have this problem… Now my iPhone turned to an iPod… My question is, what is the problem? Why do i get no service? Is it because ultrasn0w 1.2.4 doesn’t support 5.0.1? Or is there another problem? If the problem is ultrasn0w, then I suppose the only thing i could do is to wait for another update… Thank u dev team for putting all this effort in helping us, Apple users and PLEASE help us fix this problem that every 3gs user has… If anyone managed to fix this problem or has this problem, please comment in order to help others or make the dev team notice this problem. Thank u!

  • Anonymous

    I am having the same problem… i updated my 3gs iPhone with bb 6.15.00 to ios 5.0.1… after that i jailbroke it using redsnow… i managed to do that and activated my phone… After that, I went to cydia, installed ultrasn0w 1.2.4, but after the reboot, I get No service on the top left corner… From what i read on the internet, all 3gs users that updated to 5.0.1 have this problem… Now my iPhone turned to an iPod… My question is, what is the problem? Why do i get no service? Is it because ultrasn0w 1.2.4 doesn’t support 5.0.1? Or is there another problem? If the problem is ultrasn0w, then I suppose the only thing i could do is to wait for another update… Thank u dev team for putting all this effort in helping us, Apple users and PLEASE help us fix this problem that every 3gs user has… If anyone managed to fix this problem or has this problem, please comment in order to help others or make the dev team notice this problem. Thank u!

    • Bing Hanson

      woo!!! yes same here…haha if u have noticed ive commented on like 3 other peoples things haha but yes please come out with some update or crap whatever u guys do. please help us u guys r beasts u can do it

  • Tavindra Rambarose

    4.11.08 ?

  • Bing Hanson

    wow this is freaking gay ive done everything preserved, all that crap im running ios 5.0.1 BB 6.15 old bootrom and for some gay freaking reason ultrasn0w has to be gay and gives me a no service error for some reason. please help

  • http://www.facebook.com/people/Paulo-Olim/100001900582340 Paulo Olim

    lol i need to have what firmware ? because i have 4.1 im trying to upgrade to 5.0 but i get an error when im trying to restaure in itunes..the server dosen’t let me restaure..

  • Anonymous

    ultrasn0w 1.2.4 does not work on ios 5.0.1

  • Chuck Bauer

    Silly Neophyte Question, does the 3Gs unlock work with 05.16.05? Trying to figure out if these baseband things are ‘families’ or actually very number specific?

  • sanjeev chahar

    my brother brings a iphone 4 from uk..O2 carrier..ho can i unlock it??..i live in india..and its already jailbroken..help me in this guys..

  • Anonymous

    released a new Ultrasn0w 1.2.5 iOS 5.0.1

  • Edson Guedes

    Because gevey ultrasn0w and does not work in all Baseband?