Jailbreak iPhone 3G iOS 4.1 With Sn0wbreeze 2.0 and Unlock With Ultrasn0w

Written By Sam on 24 September 2010

iH8sn0w has finally released sn0wbreeze 2.0 and the updated sn0wbreeze 2.0.1 which can be used to jailbreak iPhone 3GS, iPhone 3G, iPod touch 3G, iPod touch 2G and iPod touch 1G running on iOS 4.1 firmware. Sn0wbreeze v2 essentially creates a custom firmware that can be used to jailbreak your iDevice. In order to use sn0wBreeze 2.0.1 Jailbreak For iPhone 3G your 3G must already be jailbroken on any firmware. If you haven’t yet jailbroken it then you need to use iREB. So if you are a Windows user and looking to Jailbreak and Unlock your iPhone 3G then go ahead and read the below guide.

Procedure to Jailbreak iPhone 3G on iOS 4.1 Firmware With Sn0wbreeze 2.0.1

Before proceeding further Download the below necessary files

iTunes 10
iOS 4.1
Sn0wbreeze 2.0.1

  • Download iTunes and take a backup of all your data.
  • Download sn0wbreeze v2.0.1 for Windows if you haven’t already done it.
  • Also Download the iOS 4.1 for iPhone 3G and save it in your PC
  • Run sn0wbreeze and select the “Simple Mode”. If you are an advanced user then select the “Expert Mode” to customize different settings.
  • You will now be asked to browse for the .ipsw file that you downloaded for your iPhone 3G. Select the 3G iOS 4.1 firmware and sn0wbreeze v2.0.1 will verify the IPSW file that you have selected.
  • Once the file is verified you need to click the blue button present on the right bottom. Select “Activate the iPhone” if you want to hactivate your iPhone 3G.
  • Select “Build IPSW” and then click the blue button. Sn0wbreeze will now create the custom .ipsw file for your iPhone 3G which will be jailbroken.
  • Once the process is completed you will be shown “sn0wbreeze seems to have successfully created your IPSW, this file will be located on your desktop”.
  • Now you have to restore your iPhone 3G with the custom iOS 4.1 firmware that you have created with sn0wbreeze 2.0
  • Connect your iPhone 3G, and Enter Recovery Mode. Now launch iTunes to restore your iPhone 3G with the custom Firmware built by sn0wbreeze. Hold down SHIFT while clicking the RESTORE button in iTunes.
  • Now browse and select the custom IPSW file that was created and click on β€œOpen”.
  • iTunes will restore the custom firmware and this might take around 10 mins.
  • After that your iPhone 3G will restart automatically and will be jailbroken.

Unlock iPhone 3G on iOS 4.1 With Ultrasn0w

  1. Launch “Cydia” and go to “Manage” section present on the bottom of the screen
  2. Touch on “Sources” and then on “Edit” and finally on “Add”.
  3. Add the Cydia URL as repo666.ultrasn0w.com and touch on “Add Sources”.
  4. Once the Source is added to Cydia, hit the return to Cydia button at bottom of the screen and then Done button
  5. Now search for “Ultrasn0w 0.93” and install it.
  6. Once the installation is completed just reboot your iPhone 3G and it will be unlocked!

Once your iPhone 3G on iOS 4.1 is unlocked you can use any SIM card of your choice all over the world.

24 Responses to “Jailbreak iPhone 3G iOS 4.1 With Sn0wbreeze 2.0 and Unlock With Ultrasn0w”

  1. Brad says:

    I am having some problems with my computer after using this jailbreak, is anbody having problems when it just freezes after about 5 min of starting up? Does anybody know how to fix? Thank you

    • sony boy says:

      nope but wtff is a 1604 error man… i cant do anything until i fure out what that is

    • deezo says:

      I had a problem with my phone freezing and taking very long to boot. This jailbreak made the device run very slow so I’m going to stay on the Apple 4.1 firmware until redsn0w’s issues has been cleared up.

  2. jason says:

    Hi, I just got my iphone 3g jailbroken but I can’t find ultrasn0w 0.93 version on cydia. It shows 1.1-1 only and it does not unlock my phone. How can I get ultrasn0w’s older versions?

  3. zholy says:

    I have an iPod touch that is curently running on 4.1 firmwave, that isn’t jailbreaked at the moment. Will this jailbreak it? by the way,I found a free ipod video converter for Aneesoft,it’s free haha…..ha

  4. Shadowtime says:

    Hey, I haven’t had my iPhone 3G jailbreaked yet, so I was wondering how to use iREB? I downloaded and did what it displayed, but after the restore (that is needed by itunes) it didn’t change anything.
    My iPhone still isn’t jailbreaked. Could you please help me? A youtube video would also help!
    Thanks a lot!

  5. Marcel says:

    I jailbreaked iphone according to directions and as soon as I open Cydia my iphone crashes and there are no icons on screen. I restore it and do it again and the same thing hapened. something is not working ok with this jailbreak.

  6. Jay says:

    i followed ALL of the instructions. i know the phone is jailbroken because it has the snowflake boot logo instead of the apple. i am trying to unlock the phone because i have t-mobile, but i keep getting stuck on the screen that says plug it into itunes. when i plug it in itunes says my sim is invalid. i cant even get to the springboard because my sim card is a t-mobile sim card, so how am i gonna get to cydia to download ultrasn0w??

  7. Spirit says:

    This works, had to do it twice. The first time it got stuck at “connect to itunes”. I did download iREB 4.0 to bypass the 1602 error.

  8. […] heyyyitsjordan. i used that link and this one as well Jailbreak iPhone 3G iOS 4.1 With Sn0wbreeze, Ultrasn0w Unlock | TechHail i had to use iREB before I could restore with itunes, otherwise it kept getting stuck on preparing […]

  9. mike says:

    hey!!!how can i find the ultrasn0w 0.93!!!!!!!its the 1.1 works???

  10. Hartic says:

    Ultrasn0w is not available for the moment. But you can use a software called “FUZZYBAND” You can find it on Cydia. This software can downgrade your baseband. You install it and go into the application. It will be the button “DOWNGRADE” you push it and wait. It will be write “I HAZ DOWNGRADE!”. After that, install ultrasn0w, reboot your iPhone and Tadaa ! πŸ˜€

  11. Bob says:

    I jailbroke my iPhone 3G with iOS 4.1 using sn0wbreeze yesterday. I have to admit that I didn’t see the point in jailbreaking when I was happy with the Apple provided iOS. Then they introduced 4.0. Not only did they cripple the features but they slowed my phone to a crawl. Then 4.1 came out. Again new features were crippled but performance was improved. I was still miffed about the crippled features. So I jailbroke. I was able to get some of the newer features AND the performance was greatly improved! Now I question Apple’s motives. Are they purposely leaving out features and crippling performance to sell new hardware? If the jailbreak community can make it work, why can’t the genius’ at Apple? I’m not so naive any longer. Many thanks to all who work so hard so that we can enjoy using our iPhones!

    • clairvoyant80 says:

      Hi Bob,

      Can you tell me what baseband were you at ? I am on 3G ios4.1 and BB 5.14.02. Can I just go ahead and use sn0wbreeze to jailbreak and then unlock the phone. My main requirement is to unlock the phone.

      Please respond soon. Thanks much!

  12. gie says:

    Tried it, worked. I can confirm that sn0wbreeze 2.0.2 successfully created 4.1 firmware, which I used for my iPhone 3G (previously running jailbroken 3.0). Using already preinstalled Cydia I installed latest ultrasn0w which also unlocked my iPhone. Well done to the developers

  13. clairvoyant80 says:

    Hi Gie and Bob,

    Can you tell me what baseband were you at ? I am on 3G ios4.1 and BB 5.14.02. Can I just go ahead and use sn0wbreeze to jailbreak and then unlock the phone. My main requirement is to unlock the phone.

    Please respond soon. Thanks much!

  14. Alex says:

    Do I have to use iReb to jailbreak my iPhone3g cfw3.12 to cfw4.10 using snowbreeze?

  15. Anthony says:

    I have the same problem as clairvoyant80
    Im on t-mobile and need the hone unlocked !
    its on 4.1 5.14.02BB non mc and its now just a ipod touch until its unlocked by the its a iphone not a ipod touch SO i need it unlocked

  16. ramona says:

    Hi, I have a 3g 4.1 bb 5.14.02. when i try to restore it, i get a message from itunes saying that it cannot restore the iphone because the firmware is not compatible. can you help me, please? thank you!

  17. cbz2298 says:

    Gr8 job uploader…worked perferctly ….for those having error while restoring use ireb …….. google it and you’ll find it …

  18. az22 says:

    I have an iphone 3g and when I updated it to 4.1 it got locked, i tried this but it didn’t get activated..
    any solutions guys ?

  19. Punisher says:

    For iPhone 3G Users

    For Successful Jailbreak and Unlock Using Sn0wbreeze follow below given steps:

    1. Download sn0wbreeze 2.0.2 and iREB and iOS 4.1 (Original)
    2. Follow the steps given in above webpage to create a custom ipsw file (do not forget to select Activate iPhone option and no sim installed in your phone) but make sure when u reach to the Manage Packages do add ultrasn0w using the second tab on the sn0wbreeze screen.
    3. Create ipsw file and then use iREB with online option
    4. Follow the jailbreak steps once phone reboots automatically after jailbreak … make sure you restart it once again and get essential CYDIA updates.
    5. Insert your sim card and tadaaaa…. your iphone is jailbroken and unlocked πŸ™‚


  20. newtoihone says:

    I stuck browse can’t find ipsw help?

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