Ultrasn0w 1.2.5 To Unlock iPhone 4 And iPhone 3GS Running iOS 5.0.1 With Older Basebands Released

Ultrasn0w

As promised, iPhone Dev team have released an updated version of Ultrasn0w for iOS 5.0.1.

Ultrasn0w 1.2.5 can now be installed on a jailbroken iPhone running iOS 5.01. Dev team hasn't added support to any new baseband so it will be compatible with basebands 04.26.08, 05.11.07, 05.12.01, 05.13.04, and 06.15.00 for iPhone 3GS and baseband 01.59.00 for iPhone 4. You can find your iPhone’s baseband by going to Settings –> General -> About –> Modem Firmware.

Please note that the only way to upgrade to iOS 5.0.1 while preserving the baseband that is compatible with Ultrasn0w is to use a custom IPSW created using Redsn0w, which now comes with PwnageTool functionality or Sn0wbreeze.

MuscleNerd has advised users with iPhone 3GS with old bootrom to apply latest Redsn0w 0.9.9b9d (download link - Mac and Windows) before installing Ultrasn0w compatible update:

iPhone3GS owners in our comments section below noticed a problem with the untethered jailbreak available for the old-bootrom 3GS. We’ve corrected that problem in 0.9.9b9d. If you have an old-bootrom 3GS and have already used last night’s redsn0w on it, you can re-run it again without losing anything. Just use this new version, go to Extras->IPSW and manually select the 5.0.1 IPSW, then go back and Jailbreak it again (but you can uncheck Cydia because it’s already installed).

As always let us know how it goes.

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45 Responses to Ultrasn0w 1.2.5 To Unlock iPhone 4 And iPhone 3GS Running iOS 5.0.1 With Older Basebands Released

  1. Holla says:

    Awesome – any ETA of when the 4.11.08 baseband will be unlocked?

  2. KELi says:

    Job well done!!!!

  3. PT says:

    wow and they didnt tease us with this one. I dont remember seeing them put out a new video every day just to show it was possible. But somehow, this unlock came before pod2g’s jailbreak.

  4. CEM1004 says:

    why would they only release it for an older baseband if there isnt any proof that the hack works why would people give up there hack on ios4

  5. Nephariouz says:

    Still tethered?

  6. dev says:

    Friday Saturday release for untethered 5.0.1.

  7. Iphonehackfollower says:

    Thank you!!! Thank you!!! Sooooo much!!! Finally able to use my iPhone 4. Without the hassle of 112 unlock. It’s working flawless on iPhone 4 BB 01.59.00. Thank you once again!!!!!

  8. Chhoung says:

    u keep working on old firmware . But not 4.10.01! Pls make any tool to unlock my phone pls!

    • IphoneHackFollower says:

      4.10.01 has a hardware base unlock.. it’s called GEVEY PRO. Dont get the Gevey supreme or ultra. Gevey Pro is the only stable one that i have come across.

  9. joe says:

    what about 04.11.08

  10. Andy says:

    Those of us having newer baseband should just give up and keep using the stupid gevey sim. Its been a year since any newer baseband added. The Dev Team should really focus their energy on newer bb! Whats the point of keep updating the old one.

  11. Craig says:

    People with older basebands need new firmware compatibility too! I’m so happy they released this, and 5 days before they said they would! I can finally ditch 4.3.3 and move up to 5.0.1. Good job dev-team!!! Oh and I can confirm it works on 3GS with 6.15 baseband.

  12. errol says:

    How about the 4.11.08 baseband

  13. joe says:

    iphone hacks…. can you answer that question.^

    • The Force says:

      NO, they cant even navigate us properly in settings to find Modem Firmware ( not that I need them to, just sayin’ ). It’s not Settings –> About –> Modem Firmware as stated in the article… rather, Settings –> General -> About –> Modem Firmware.

  14. fas says:

    Still no 2.10, 3.10, 4.10

  15. TwistedEndz says:

    im runing 04.10.01 iphone 4 , so i gotta wait for pod2g!!!!

  16. Per Andersen says:

    Just update with 5.0.1 – Jailbreaked with Redsn0w and activated/unlocked with ultrasn0w 1.2.5 (it wasn’t locked at all, but wouldn’t find service.

    Done all “by the book” twice, but still no service, just searching for 2 hours now ?????

    HELP !!!!!!!!!PLEASE

  17. Зло says:

    Whats the point ?I dont know why people buy iphone after 3gs ?From torture themselves with Gevay or what ?I began to be sick of looking the sites and waiting for some sign from heaven. That is prob aproved from Apple !Like all others Crap and time to put hacks on the net. It is usually connected with the release of a new phone and usually has links to fire the public as much to buy a new phone and again and again and with no End .Sorry for my English .

  18. Adam says:

    if I have a 3gs unlocked on 4.1 fw and 06.15.00 bb, then can I update to 5.0.1 while preserving my baseband without losing my unlock?

  19. MAI PHAM SON TUNG says:

    my Iphone 4 fw 04.11.08 ??? when can unlock it??? help me !!!

  20. Mailo says:

    How do I unlock the United SIM iPhone 4 ios 5.0.1 FW 4.11.08 I’m not there I’m the Cydia nainstalovaql ultrasn0w and still no network please help calm pay

    thank you

  21. Dantecries says:

    How about bb 5.16.05 on 3GS? Tnx

  22. Elyar says:

    Hi!my phone iPhone 3gs iso5.0.1,bb6.15.00 .i had jailbreak use redsn0w.but when I use ultrasn0w1.2.5 it still locked.how can I do?

  23. jmac says:

    AWESOME. jailbroke on ios 5.01 while maintaining baseband and then unlocked my phone! fyi, i have an iphone 4 baseband 1.59. i have a question though: on ios 5.01, we can now update the software wirelessly. does this update automatically? i am afraid its gonna update my firmware. thanks in advance!

  24. matt says:

    hi there im after some help. my girlfriend recently bought me a pre owned i phone 3gs 32gb it was locked to orange so she hed it unlocked for me in a local shop. the trouble is the bloke in the shop forgot to mention that i couldnt update the software at any point.
    anyway when i plugged in and went on i tunes it said upgrade software to ios 5. i did this and now my phone wont work properly it says unable to activate. and also says on the computer that i have no sim installed. can some one help me get my phone working again. i dont know what i need to download to get it back to how it was. thanks in advance

  25. matt says:

    its an i phone 3gs 32gb

  26. miriam says:

    I have an iPhone 3GS UNTETHERED hacktivated old bootrom ios 5.0.1 baseband 6.15.00 since Octuber or November, I don’t remember, can I use ultrasnow with this version? or Do I have re-run it again the redsnow 0.9.9b9d ??? Thank you!

  27. patt says:

    my 3Gs still shows “no service”.
    What went wrong?
    my 3Gs is running on iOS 5.01.basebands 06.15.00 and jailbroken with redsn0w 0.9.10.
    then I installed UntrasnOw 1.2.5. It suppose to work with any sim from any carrier, right?
    It doesn’t work with any sim not even it’s own carrier.
    Please help. ….. Thank you!

  28. Tremaine says:

    i have a iphone 4 thats at&t and running on 5.0.1. i am with tmobile and thought i could use it on the carrier i currently have… i havent got any help with figuring out how i can get it to work. no one seems sure or confident in what they are talking about. can an expert or somoeone who has a iphone 4 running on 5.0.1, who has done it and knows what they’re talking about help me please.

  29. michael says:

    i have iphone 3g 4.2.1(8C148) bb 05.15.04. how can i jailbreak and unlock it? need advise. thanks!

  30. ron says:

    Only One Signal Bar With Baseband Preserved 01.59.11 Jailbroken are there is any fix???
    and ultrasn0w 1.2.5 unlock my iphone????

  31. iOS hunter says:

    What is your hardware. Ip4 ip3gs?

  32. Dantecries says:

    Ip3gs

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