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How To: Unlock iPhone 3GS, 4 Running on iOS 4.3.3 Using Ultrasn0w 1.2.3

Posted by: 6 May 2011 25 Comments

iPhone Dev Team has released a newer version of Ultrasn0w. Those who rely on an unlock after jailbreaking iOS device running on iOS 4.3.3 using Redsn0w can use Ultrasn0w 1.2.3 to run iPhone on any carrier. Please make sure that before starting the below mentioned steps, you have jailbroken your iPhone. If you haven’t jailbroken your iPhone yet, follow the guide posted here.

Ultrasn0w 1.2.3 supports 01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00 basebands.

Once you have jailbreaked your iPhone follow the steps below for unlocking your iPhone using Ultrasn0w1.2.3:

1. Go to Cydia -> Manage -> Source

iPhone4Unlock1 How To: Unlock iPhone 3GS, 4 Running on iOS 4.3.3 Using Ultrasn0w 1.2.3

2. Now select the Edit and then Add a source ‘http://repo666.ultrasn0w.com’ , as shown below on the screen.

iPhone4Unlock2 How To: Unlock iPhone 3GS, 4 Running on iOS 4.3.3 Using Ultrasn0w 1.2.3

3. After the source has been added search for ‘ultrasn0w 1.2.3‘ and install it.

4. Once you install this app you can use your iPhone with any carrier.

If you find any difficulty during the unlocking process, do write us in the comments section below.

 

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  • Ahmed 51192

    i have unlocked my iphone 3gs and i have installed repo666.ultrasn0w.com

    and it is still not working i cant find any carrier what should i do ?

  • http://www.tecrux.com/ Usman

    @194e7057da6a3f79d7eed0f183b9869a:disqus After adding the source repo66….. you have to install ultrasn0w 1.2.3
    Make sure you follow the steps as mentioned above.

  • Ahmed 51192

    i have installed ultrasn0w 1.2.3 after i have added the source and yet nothing :S

    what should i do ?

    is there any possible way to do it?

  • Ahmed 51192

    i have installed ultrasn0w 1.2.3 after i have added the source and yet nothing :S

    what should i do ?

    is there any possible way to do it?

  • Ahmed 51192

    repo666.ultrasn0w.com is the only possible way to unlock my iphone or is there anyway else to unlock my iphone ?

    coz my i tried everything and yet it wont unlock

    it gives me sign on the top of the
    screen
    saying
    searching
    and nothing happens in the end

  • http://www.tecrux.com/ Usman

    @194e7057da6a3f79d7eed0f183b9869a:disqus if you are jailbreaking using Redsn0w then ultrasn0w is the only way you can unlock. Try jailbreaking using Sn0wbreeze.

  • Mute_123

    Im also getting “searching”. Ive done exactly as this tutorial has asked. I have an iphone 3gs with o2 simplicity monthly contract and it doesnt work. any ideas? email me at mute_123 at hotmail.com

  • http://www.tecrux.com/ Usman

    @6f33acd90fb42e2935d1d5f67805ab02:disqus @194e7057da6a3f79d7eed0f183b9869a:disqus For ultrasn0w 1.2.3 its required that iPhone 3GS is jailbroken with 06.15.00 baseban
    d. Make sure that you have this BB.

  • http://www.iphoneonline.net action menu 1.2.1

    Great post. I used to be checking constantly this blog and I’m inspired! Very helpful info specially the remaining phase I maintain such info much. I used to be seeking this certain information for a very long. Thank you and good luck.

  • Ahmed 51192

    can u tell me that exact way to unlock my iphone 3gs ?
    i know that i have to unlock it with sn0wbreeze but how exactly do i do that ?

  • http://www.tecrux.com/ Usman

    You can follow the sn0wbreeze guide. we have posted the detail instructions in that article.

  • http://www.justmobilephone.com/ Ultrasnow Unlock

    You give good timely post..  I very often check you

  • Anonymous

    Well, You can simply unlock your iOS accessories application ultrasn0w 1.2.3. If you are afflictive in making custom firmware using sn0wbreeze 2.7.1 or PwnageTool.

    Preço ipod

  • http://www.justmobilephone.com Redsnow 4 3 3

    will this also unlock the latest basebands ……. ????

  • http://www.tecrux.com/ Usman

    Only the basebands mentioned above can be supported.

  • http://www.tecrux.com/ Usman

    Thanks :)

  • Hannah13

    I Phone 3G is one of the most popular technologies in the history of mobile phone, and unless you lived under a rock you probably heard of. Apple iPhone 3G is as desired then that retailers often have trouble keeping in stock and when the last 3G iPhone was released it sold thousands of dollars in the major sites for online trading.

  • Hannah13

    I Phone 3G is one of the most popular technologies in the history of mobile phone, and unless you lived under a rock you probably heard of. Apple iPhone 3G is as desired then that retailers often have trouble keeping in stock and when the last 3G iPhone was released it sold thousands of dollars in the major sites for online trading.

    how to jailbreak iphone 5

  • http://www.justmobilephone.com/download-redsnow-4-3-4-ios-jailbreak-4-3-4/ Redsnow

    my iphone 3g cydia crashed after adding this repo ………….. 

  • Anonymous

    please update it again then try….

  • Yuvaraj Khatri

    plssss helppppp.
    i tried many time but not a hope.
    im on bb 6.15.00 (ipad bb) and i unlocked before but mistakly i updated to 4.3.5 and i downgraded to 4.3.3 with costum ipsw and when i installed ultrasn0w,i reboot my iphone then searching on left right top!! after few mins no Single..
    pls help.
    iPhone 3gs.32GB black plss

  • Yuvaraj Khatri

    finally found a solution for this..
    if anyone has this problem so do as i say.
    so u have ios 4.3.3 and ipad bb 6.15.00
    steps.
    1.download the official FW for ios 4.3.3 (official one not the custom ipsw)
    2.download redsn0w for the ios 4.3.3 
    3.run redsn0w and check the box “cydia” and “iPad Baseband”
    4.now follow the instruction on the screen
    5.and wait until redsn0w finishes ur jailbreaking and flashing iPad bb “again” in ur iphone.
    6.when done open cydia and install ultrasn0w 1.2.3
    7.reboot the iphone..
    when its comes ur iphone will be fully unlock and u can use any carrier on it now..
    ———————————————————————————————————————–
    this problems occurs when u restore to the official firmware not the custom.
    so to fix that u have to upgrade ur bb again to ipad bb to work ultrasn0w :) :) cheers

  • Yuvaraj Khatri

    finally found a solution for this..
    if anyone has this problem so do as i say.
    so u have ios 4.3.3 and ipad bb 6.15.00
    steps.
    1.download the official FW for ios 4.3.3 (official one not the custom ipsw)
    2.download redsn0w for the ios 4.3.3 
    3.run redsn0w and check the box “cydia” and “iPad Baseband”
    4.now follow the instruction on the screen
    5.and wait until redsn0w finishes ur jailbreaking and flashing iPad bb “again” in ur iphone.
    6.when done open cydia and install ultrasn0w 1.2.3
    7.reboot the iphone..
    when its comes ur iphone will be fully unlock and u can use any carrier on it now..
    ———————————————————————————————————————–
    this problems occurs when u restore to the official firmware not the custom.
    so to fix that u have to upgrade ur bb again to ipad bb to work ultrasn0w :) :) cheers

  • http://www.tecrux.com/ Usman

    Thanks for the solution, Cheers

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