UltraSn0w 1.2.5 Unlock Released For iPhone 3GS and iPhone 4 Running iOS 5.0.1

By , Dec 21, 2011

The latest version of UltraSn0w has made its way to Cydia, and it supports the latest publicly available iPhone firmware, iOS 5.0.1.

You will still need an unlockable baseband to utilize ultrasn0w, but if you meet the requirements, it is now possible to unlock your iPhone 4 or iPhone 3GS running iOS 5.0.1…

You will need a jailbroken device to utilize UltraSn0w 1.2.5. Your baseband must also meet the following requirements:

iPhone 4: baseband 01.59.00
iPhone 3GS: basebands 04.26.08, 05.11.07, 05.12.01, 05.13.04, 06.15.00

If you’re interested in preserving your baseband for the latest Apple firmware upgrade, you can follow our baseband preservation tutorial.

This version of UltraSn0w doesn’t bring any new baseband compatibility to the table, and it only works with the iPhone 4 and 3GS. No iPhone 4S support just yet, but there are rumblings that support could be coming for those devices in the future.

Are you running an unlocked iPhone using UltraSn0w?

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  • http://twitter.com/ShaliEfrat shali yfrimashvilly

    COOL

  • Anonymous

    yes….yes…yes..

  • http://www.facebook.com/profile.php?id=1507068701 Jorit Studer

    Actually that was already possible if u edited the .plist did it on my sisters 3GS ;)

  • http://twitter.com/oneBurge Burge

    3G don’t run 5.0.1…

    • http://www.youtube.com/myjailbreakmovies/ Jeff Benjamin

      Good point. Forgot about this. The unlock still works, just for the lesser firmware.

  • http://www.facebook.com/people/James-Watts/517815964 James Watts

    Cant find it in Cydia

    • http://www.facebook.com/profile.php?id=100001210720890 Nelle Corpuz Agni

      yeah ryt. wheremcan i find the utrasn0w 1.2.5 in cydia?

      • Anonymous

        looking through the search button in Cydia

    • Anonymous

      looking through the search button in Cydia

    • Jay Alshati

      just do search it will show up

  • Anonymous

    thank you Jeff!!!

  • Anonymous

    thank you Jeff !

  • http://www.facebook.com/people/James-Watts/517815964 James Watts

    It freezes the phone when restarting the iPhone.. Restarts normally and perfect, but soon as you install this version of Ultrasn0w .. it askes to reboot device, when you do, it freezes at bootup.

  • Pedro Ivo Alves Fonseca

    Thank god, did anybody tried and worked?

    Thanks

  • http://www.facebook.com/profile.php?id=723966738 Nuna Swan

    cool

  • Gautam Narse

    No use its for Pre qualifiers…. i Think they forgot that there is lot more baseband than 01.59.. people still use gevey sim.

  • http://twitter.com/Reelin101 Auguste Nahas

    Hello,

    I am getting an iPhone for Christmas and I would like to know exactly what unlocking does and what baseband is. Will my baseband be ‘unlockable’? (I am buying an iphone without a sim).
    I know what jailbreaking is since I have had an ipod touch for a year.

  • Anonymous

    Is there any way i can downgrade the baseband on my iPhone 4 to the 01.59.00

  • Anonymous

    Hi, My phone meets the criteria but the unlock does NOT work. iPhone 3GS (new boot rom), iOS 5.0.1 (9A405), Jailbroken, 06.15.00 Baseband. Ultrasn0w 1.2.5 installs, reboots springboard but cannot find a carrier. Just says “No Service”. Anyone else having this challenge?

    • http://www.facebook.com/renicovanwyk Renico van Wyk

      same here!

      • Anonymous

        I’m trying to jailbrake my 3Gs. Is yours untethered?

      • Anonymous

        Hi Alex, the solution above was a tethered jailbreak.

    • http://www.facebook.com/people/Cale-Gaylard/511673737 Cale Gaylard

      did you downgrade from 5.0.1 to 4.3.3? because redsnow 0.9.9b9d. jailbreaking 5.0.1 while having baseband 06.15.00 doesnt let ultrasn0w 1.2.5 make my simcard work,

      still says no service.

      why is this so picky for new botrom iphone 3gs’s? i cant be the only one who upgraded their baseband and still cant make this unlock work. Why is there no solution to this.

      • Silicon EIRC

        you can make unlock by getting down to 4.1 its easy… but the problem is you cant get it unlock at 5.0.1

      • david mccall

        For the people who wants to unlock ATT phones, go google attiphoneunlocking, they unlock any model and firmware up to date. I did mine there, took me couple hours.

    • Xavier Ochoa

      ^^ I have the same problem, please can you to detail the step to fix the error.

      • Anonymous

        Hi Xavier, The steps are as followed.

        1) Download Redsn0w 0.9.9b9d
        2) Jailbreak and Update Baseband to 06.15.00, regardless if you have done it already.
        3) Boot Tethered.

      • Xavier Ochoa

        Thanks the problem is fixed making that but I use RedSn0w 0.9.10 beta 2 and the jailbreak is untethered.

    • http://pulse.yahoo.com/_ZSK5T5G6ELC5DX74HZNHWGWU4E Steven

      You cant install ipad baseband on 3gs new bootroom after week 36. It will stop reading your sim card

    • http://www.facebook.com/people/Mohsen-Elshahaly/721049386 Mohsen Elshahaly

      I updated my iphone 3GS to 5.0.1 and installed the ultrasn0w 1.2.5 through Cydia as descibed but it says no signal or searching for a signal. Please help!!!!

  • http://twitter.com/pinkyvickiy David Mitchell

    take sim out go re jailbreak but un click cydia and click ipad bb let it load and it works ive just done it on mine after many hours

  • http://twitter.com/pinkyvickiy David Mitchell

    turn your phone off,open redsnow and click jailbreak,when the window pops up un click cydia and click ipad bb let it run when your phone comes on put in sim and it will work,after many hours i found this solution

  • Jay Alshati

    so if i have iPhone 3gs with version 4.1 and firmware 06.15.00, should I upgrade it to 5.0.1 and and unlocked or what i should do? please let me know. thanks merry xmas to you all.

    • Xavier Ochoa

      Yes you can

  • http://www.facebook.com/people/Mohsen-Elshahaly/721049386 Mohsen Elshahaly

    I updated my iphone 3GS to 5.0.1 and installed the ultrasn0w 1.2.5 through Cydia as descibed but it says no signal or searching for a signal. Please help!!!!

  • http://www.facebook.com/profile.php?id=100002061183947 Tayler Cunnington

    no matter what i do my iphone always says serching or no service even after restore. it says the same thing when i installed ultrasn0w. someone please help :(

  • http://pulse.yahoo.com/_K64X22YA2V2JRKOXWAQCLSO5OY Gilberto

    I have iphone 3GS with baseband 06.15.00 and iOS 5.0.1 with untethered jaikbreak and las version Ultrasn0w 1.2.5 . It not work, I can´t get network.

    • http://www.facebook.com/hussein.mahfouz Hussein Mahfouz

      Update Baseband to 06.15.00, regardless if you have done it already and it will work fine

  • http://www.facebook.com/yan.verde Yan Verde

    I have 3Gs on 4.3.3 baseband 05.13.04 and ultrasnow doesn’t work anymore since the 1.2.5 update! I only get a no signal message…
    please help!

    • http://www.facebook.com/profile.php?id=780193430 Jason Sidhu

      i downloaded the apple ios 5 then i followed the normal instructions of preserving baseband and created custom iOS 5.0.1 via snowbreeze and restored that custom 5.0.1 and now it is working fine with baseband 6.15.00
      mine was a jailbrken iphone3gs which earlier worked on 4.1 os.
      snowbreeze wrks like a breeze

  • http://www.facebook.com/profile.php?id=780193430 Jason Sidhu

    i downloaded the apple ios 5 then i followed the normal instructions of preserving baseband and created custom iOS 5.0.1 via snowbreeze and restored that custom 5.0.1 and now it is working fine with baseband 6.15.00
    mine was a jailbrken iphone3gs which earlier worked on 4.1 os.
    snowbreeze wrks like a breeze

    • abdelkader el houmri

      hello
      is it possible to unlock an iphone 4 ios 5.0.1
      base band 04.11.08
      thank

  • http://profile.yahoo.com/SKWBTC53YOQUKBKTNBLFMHPYZE Hamada El-shafei

    Hiii, I have 3GS 16G NEW botroom, with basband 06.15.00 running IOS 4.0 is it ok to update it and get it unlocked ?????????????????????????????????????????????????

    • Usman T

      Hi,
      Yes I have the same question. My iphone 3GS is on a NEW bootrom. Does this method will work on it?? Mine is already untethered jaibreak but the basband is not ipad one but it is 05.16.05. If I upgrde the baseband to the ipad one, does it make my iphone 3GS NEW bootrom unlock and that too with UNtethered jaibreak like it is now. Please Help!!

  • Usman T

    Hi,
    Yes I have the same question. My iphone 3GS is on a NEW bootrom. Does this method will work on it?? Mine is already untethered jaibreak but the basband is not ipad one but it is 05.16.05. If I upgrde the baseband to the ipad one, does it make my iphone 3GS NEW bootrom unlock. Please Help!!

    • http://www.facebook.com/profile.php?id=100000178639357 Asees Singh

      what is ur product serial number 3rd ,4th and 5th digit???
      if it is less than 26 week of 2011 then u install ipad baseband successfylly…

  • Usman T

    Hi,
    Yes I have the same question. My iphone 3GS is on a NEW bootrom. Does this method will work on it?? Mine is already untethered jaibreak but the basband is not ipad one but it is 05.16.05. If I upgrde the baseband to the ipad one, does it make my iphone 3GS NEW bootrom unlock and that too with UNtethered jaibreak like it is now. Please Help!!

  • Mato Duris

    Hi! Does it work also for iPhone 3G? I jailbreaked it (4.2.1 firmware), installed iPad baseband and installed UltraSn0w 1.2.5 from Cydia, restarted springboard, restarted phone, but it is still SIM locked :( Am I doing something wrong?

    Thanks for your help!

    • http://profile.yahoo.com/CMP3NKQRMB7I33HLCLV5VMNRTI rolanda

      If you have found the solution, please share. Same problem here

  • http://www.facebook.com/profile.php?id=1087134482 Youssef El Ouazzani

    hello i have a iphone 3gs ios 4.1 and frimware 06.15.00 and i ultrasn0w 1.2.5 but it didnt work in my phone it didnt wana e unlock can you please help me to fix it thank you so much

  • Anonymous

    Oh this is just too fucking hard. So many threads about getting my 3gs to work.
    I give up, time to face the facts my iphone 3gs is now just a fucking mp3 player. Oh hang on, that was before, now I can;t even access that. fuck this, never buying apple again.

  • Tina Cheng

    Can you use this to unlock iphone 4G running on version 4.3.3? If not, does anyone know the old ultrasn0w file v 1.2.3?