ultrasn0w 1.2.8

Between the rise of third party vendors and the recent change in DMCA policy, the need for iPhone software unlocks is steadily dwindling. But that doesn’t mean that the method is obsolete, as there are still many people out there with older iPhones.

And if you happen to be one of those people, you’ll be happy to know that MuscleNerd has confirmed that Ultrasn0w was quietly updated this week to support iOS 6.1. So if you’re on an eligible device and baseband, you can unlock on the new firmware…

As MuscleNerd says, Ultrasn0w 1.2.8 works with 6.1 and is already out in Cydia. You just need make sure that you have either: an iPhone 4 on baseband 01.59.00, or an iPhone 3G/3GS on basebands 04.26.08, 05.11.07,, 05.13.04 or 06.15.00.

Remember you can check your iPhone’s baseband by opening Settings > General > About > Modem Firmware.

If you’re on one of these firmwares, you’ll have to make sure that you don’t update your baseband when you update to iOS 6.1. To do this, you can use RedSn0w, just open the app and click Extras > Even More > Restore and choose not to upgrade BB.

If you need help with this, click here for our step-by-step video tutorial on the process. It’s older, but should still work.

Now if you really want to make your life easier, we can only suggest using an official factory unlock such as ChronicUnlocks.

Any questions?

  • Dan

    when will this be able to unlock iphone 4s new baseband with redsn0w?

  • my iphone 3gs ios 6.0.1 Jailbroken goes from 50 % battery to completed dead (show red battery and 2 plug in) ..any suggestions ?

  • VEP

    HI! I need help, I made a mistake on my first attempt to thether jailbreak my 3Gs Iphone, (is not a new iphone from 2011 after week 28) and now I have no Cydia any more as the first time I attempted Jail break I lost it on the Itunes update of firmware which was recommended, tried to use Redsn0w to reinstall Cydia and it doesn’t install it. I have a base band 05.13.04, old bootroom. Can I download ultrasnow to my macbook and do the jail break from there? I wish I knew about you guys before I attempted the stupid way I attempted the jail break it, now I am really in a bind and don’t know what to do. Can someone help me? Any suggestions?

  • Taz356

    has anyone unlocked baseband 04.12.05 with firmware 6.1.2 for the iPhone 4 yet? I have it jail broken through evasi0n no problems but cannot unlock the baseband???

  • hey guys will there be a ultrasn0w ver. for the iphone 4s n how soon can we expect it

  • Kina

    Is there an unlock for the iPhone 4S yet? That’s free

  • alex1

    i have a iphone 4 baseband 4.12.01 can i unlock it?

  • Kevin Pelzel

    I can’t get ultrasn0w on my iphone 2g now!

  • my iPhone 4S with firmware 6.1.2 and baseband 3.4.02 ultrasn0w work??

  • Laraib Aly

    I have an iphone 4 iOs 5.1.1 BB 4.12.1 and SAMPrefs & ultrasn0w won’t work, any help?

  • disqus_lCzQQNTvDa

    Can ulrasn0w 1.2.8 unlock iphone 3gs with IOS 6.1.3??

  • i have iphone 4s version 6.1.3 with baseband 3.4.03, please guide me how caN I ACTIVATE it

  • where is the version 6.1.3???

  • ken chong

    im hv iphone 4 bb 04.12.01 any can help ??how to unlock network no service???

  • 17 bucks to factory unlock, dont make life hard on your self.

  • i have just been given an iphone 4S, v6.1, firmware 3.4.01. can i unlock this phone or should i just have chronicunlocks do it? i’m moderately compuer knowledgeable but not smartphone smart. thanks

  • CranK NeT

    Hello, Please help me, I have iPhone 3GS with 6.1 firmware & 5.13.04 baseband.

    I want restore current firmware (6.1) but I want to know if the baseband version will change or not !

  • I have an iPhone 4 ios 6.1 baseband 04.12.02 any help please!!?

  • NewfieIphone

    I have a Iphone 5 with firmware 3.04.25 can this phone be unlocked heading to the US on Saturday 6.1.2 (10B146) version Looking for help

  • Guest

    Hey. What if my modem firmware is 05.15.04?

  • Jimmyjazz


    What if my modem firmware is 05.15.04?

    Thing is, I’ve tried to install Ultrasn0w, but it ruins my signal to my operator… When I remove it, everything works just fine again.

    (I’ve got an iPhone 3G.)

  • Victor Okoro

    Hi I need help on installing Jailbreak firmware software which I have already downloaded on my pc, my devise software is still showing 4.1 after suffering from a compulsory downgrade from a higher version when I cannot unlock it

  • Victor Okoro

    Hi I need help on installing Jailbreak firmware software which I have already downloaded on my pc for iPhone 3GS, my devise software is still showing 4.1 after suffering from a compulsory downgrade from a higher version when I cannot unlock it

  • allan

    hey i jailbreaked my iphone 3gs it is working fine the problem is i am not able send or recive sms so plzzz help what to do other thing working fine

  • dorey69

    hi, have u update for 4s so i can use any sim, already jailed it, ty

  • Jaspreet Singh

    i have iPhone 4 16gb. version 6.1.3 (10B329) from uk . But i am use in India. i want this phone factory unlock . Please Sir you help me. You send me factory unlock. my id is Jass.1947@yahoo.com Very very thanks

  • officialimeiunlock

    i recomended officialimeiunlock com because they are the best

    • Qasim Bashir

      they should call it “the absolute unlock”

    • Funny that, I wonder why.

  • jonsmit

    Any solution for BB 04.12.01 on IPhone 4 yet?

  • Ive been using Ios7.0 for a few weeks now and while I am no MuscleNerd my inexperienced poke around the code would seem to indicate that Jailbreaking has some road to run yet.

  • saroar jahan tutul

    need help,, my modem firm wire is 04.12.05. can i unlock it? is there any way to unlock it without factory unlockl.?

  • Patrick Gallagher

    Please forgive if this is a noob question as I’m still quite new to all of this but is anyone working on unlocking the 04.12.05 baseband? If you’ve upgraded is it just a case of waiting until someone cracks it or are you stuck with an unlockable device?

  • kit

    Hi I have an iphone 3gs on 6.1.3 w ith baseband 05.16.08. I understand how to downgrade to 6.1.2 but not how to jailbreak, can someone help me please

  • Kelly

    iphone 4 version 6.1 firmware 04.12.05 locked to orange france its jailbroken how can i unlock it need help please

  • Dominik Renz

    is it safe without ulstrasnow on my iphone 4s 6.1.2

  • marc acosta

    Wow chronic charges $99 for a unlock that is way too much. I’m still getting mine for $40

  • Mhaybe

    Hi, I have a iphone 4 and running IOS 6.1.3 and I need to unluck it…what are the thin hi need..??pls help..

  • i will try this at home tonight

  • michael nieves

    will this work on ios 6.0?

  • Chrystll Owens

    i have a iphone 4s i need to jail break it i am using Straight talk but can not edit my apn i am running 6.1.3. What do i need to do this.,

    • tirror69

      6.1.3 in 4s is not jailbreakable…

  • Harsh Patel

    i have iphone 4s verizon running ios 7.0.4 what i do to unlock it

  • dropthepuck28 .

    Can anyone confirm this works for 6.1.3? I just stumbled across a 3GS running iOS 5.0.1 and would like to upgrade.

  • J’adore Lee

    I have an iphone 3gs with ios 6.1.6 and a baseband of 05.16.08. The serial number on the sim holder is different than the serial number in my setting, but I can no longer get to my settings because my phone had to be factory reset. I really just want to get this phone working because I desperately need it for work and personal matters. Any help would be much appreciated!

  • roza

    how to unlock iphone 5s… can’t be open….

  • Danish

    Does this works for iphone 4s ios 7.1.1(11D201) Baseband 5.2.00?

  • Victor Hirata

    i’m on iOS 6.1.3 and baseband 3.10.01, sould it work for me ?

  • hiennana

    I have an iPhone 3GS BB 06.15.00 running iOS 4.2.1. How can I upgrade to iOS 6.1 and have it jailbroken?

  • smart_4urs

    i have 3g can i install ios 6…. also i need whatsapp for i phone 3g

  • blackie3000

    i have an iPhone 6 and would like to get it unlocked can anybody suggest a reliable website, one thats not a scam, and doesn’t have a fake customer support number.

  • Turbo Tibor

    Ebay unlocking aren’t trusted!! There really are a lot scammers there, lots of us might appear to have plenty good feedback, but your phone might be closed following 6 days if you decide on these bad unlocking methods. You may use skilled company like Att-iphoneunlocking, I’ve tried it for therefore a lot of my telephones, they are able to also unlock the modern 6 and 6PLUS.

  • Farkas Izabell

    For individuals looking to unlock AT&T devices, you can find the most effective unlocking company on Att-iphoneunlocking, we provide one of the finest unlocking service, even the newest 6 and 6PLUS.