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Unlock iPhone 3G 3GS on Firmware 3.1.3 with Blacksn0w

Apple has released firmware 3.1.3, with the release of new firmware, jailbreaking and unlocking tools are emerging as well. Earlier, we shared the procedure to jailbreak iPhone 2G, 3G and 3GS (Older Bootroms Only) with sn0wbreeze on latest iPhone firmware 3.1.3. Snowbreeze actually preserves your older baseband while upgrading your device to the latest iPhone 3.1.3 OS/firmware. We have already shared a tutorial on unlocking your iPhone on 04.26.08 baseband using ultrasn0w. If your iPhone is on 05.11.07 baseband, than this tutorial will help you to unlock your iPhone via blacksn0w.

This post is about Unlocking iPhone 3G and iPhone 3GS (Old Bootroms only) on firmware 3.1.3 via Blacksn0w. iPhone 2G users can unlock and jailbreak their iPhone using redsn0w, details are posted here.

Steps To Unlock iPhone 3.1.3 Firmware Via Blacksnow

  1. First you will need to jailbreak your iPhone 3G/3GS on firmware 3.1.3, step-wise procedure is posted here
  2. To unlock your jailbroken iPhone using blacksn0w, follow these steps:
    • Start "Cydia" on your iPhone.
    • Touch on "Manage" tab on the bottom.
    • Now touch on "Sources" as seen in the screenshot below:
    • Touch on "Edit" and then on "Add". You will be prompted to enter a url source as seen in the screenshot below. Type "http://blackra1n.com" and touch on "Add Source"
    • Blacksn0w

    • Cydia will now automatically update your sources by following a series of automated steps.
    • After installation is completed. Search for "blacksn0w" in Cydia and install this application. This application will then automatically unlock your iPhone so that you can use it with any carrier.
    • Blacksn0w

  3. That's all. Just give a hard reboot to your phone in the end and you should have fully jailbroked and unlocked iPhone 3G/3GS on firmware 3.1.3.

NOTE: Please try this at your own risk, we haven't tried this procedure ourselves. You might want to wait for official tools to be released by Dev-Team and Geo-Hotz for firmware 3.1.3.

UPDATE: If you are facing issues in unlocking, please refer here for FIX available for Blacksn0w.

Please visit here and here respectively for complete coverage on jailbreaking and unlocking iPhone 3.1.3 firmware.

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31 comments
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  •  
    irome5 years, 2 months ago

    hello there i do appreciate your effort and help on this… at last i already use the phone with the sim in here…

    again thank you very much! keep it up!

    •  
      Pramod5 years, 2 months ago

      Awesome !! Your most welcome. :)

  •  
    irome5 years, 2 months ago

    do i need to use redsnow RC18 and ipsw 8J2? what i have use is Redsnow RC18 and ipsw 4.2.1… Thanks a lot for assistance…

    •  
      Pramod5 years, 2 months ago

      Yes, definitely. Infact you can use any IPSW upto iOS 4.3.3 on Redsn0w RC18.

  •  
    irome5 years, 2 months ago

    i try to do it 3 times already but still the baseband still the same and updated.. any further advise? thanks a lot.

    •  
      Pramod5 years, 2 months ago

      Are you sure that your BB is still at the same version? Did you follow the guide that I had mentioned earlier? Don’t tell me that it did not work inspite of following my earlier comment. :)

  •  
    irome5 years, 2 months ago

    4.3.3 MC133J 05.16.02

    •  
      Pramod5 years, 2 months ago

      Gr8. Follow this guide to unlock. http://bit.ly/jVI3cT
      Now since you have already jailbroken your iDevice, all you need to do is to select the Install iPad BB option alone from Redsn0w. Once completed, continue with the Ultrasn0w for the final touch.

  •  
    irome5 years, 2 months ago

    already out of emergencymode and able to load the icons and cydia, is there a way to unlock the phone? any advise on this one? thanks a lot!

    •  
      Pramod5 years, 2 months ago

      Your iPhone model/BB/iOS details?

  •  
    irome5 years, 2 months ago

    thank you. i’ll advise you whatever happens to this jailbreak again…

  •  
    irome5 years, 2 months ago

    i will double confirm again using redsnow 0.9.6b4. Thank you.

    •  
      Pramod5 years, 2 months ago

      No, you need to use the latest RedSn0w version which is RC18. Your using a pretty old version. Download it from here: http://bit.ly/lMeWpa

  •  
    irome5 years, 2 months ago

    i did the jailbreak for redsnow but still stay at the same situation, may i know how to hacktivate it? appreciate your assistance..

    •  
      Pramod5 years, 2 months ago

      Are you sure? That’s just impossible !! You must have not done the jailbreak. Even if your run RedSn0w w/o checking any of the options you’ll get hacktivated. Did you honestly run Redsn0w?

  •  
    irome5 years, 2 months ago

    and because the phone bought in the other country, the sim cannot recognize using itunes. thank you..

    •  
      Pramod5 years, 2 months ago

      You need to use the official SIM for the iPhone in *that* country right now. In case you don’t have it, use Redsn0w to jailbreak & hacktivate.

  •  
    irome5 years, 2 months ago

    i think i used the 4.2.1 IOS when i do the jailbreak with redsnow. the situation now it’s stays a connectors with the itunes logo and when unlock slide, the keypad on screen says emergency only. Could you please help what to do next so that i can able to use the phone? thanks a lot for your patience on this.

    •  
      Pramod5 years, 2 months ago

      If your stuck at the Emergency call screen, you’ll need to pop in your official SIM that came locked with your iPhone and connect to iTunes. It’ll then officially activate your iPhone with Apple and will skip the Emergency Call screen.

  •  
    irome5 years, 3 months ago

    hello i succeeded to restore/ and update to original setting the device but now it stays at emergency only since the sim cannot recognize by itunes. do i need to JB it now? some of my friends here tell me to try HACKTIVATE with ULTRASNOW.. and if I JB this, what IOS version does it have now? and what JB must be use? Sorry if I bother you much on this.

    Thanks a lot!

    •  
      Pramod5 years, 3 months ago

      iPhone iOS details (the one your currently on)?

  •  
    irome5 years, 3 months ago

    hello, i have try to unlock the iphone 3GS thru blacksnow and follow the instruction above but after this the iphone 3Gs does not turn on continously and stay only on iphone logo. Can you please tell me what to do next? thank you very for assistance.

    •  
      Pramod5 years, 3 months ago

      Don’t use BlackSn0w anymore. These are outdated tools.
      Use the latest JB utilities like Sn0wBreeze/Pwnage to get yourself jailbroken and unlocked at the sametime. Follow this guide here: http://bit.ly/mbFORU to understand better. :)

      •  
        irome5 years, 3 months ago

        My problem is i dont have backup using itunes of this Iphone3GS. Can you help me to provide steps where to start again of restoring IOS of this device. The last IOS used is 4.2.1.when it was JB. Thank you.

        •  
          Pramod5 years, 3 months ago

          For iOS 4.2.1, try FixRec to get yourself out of the Recovery loop. Follow this guide: http://bit.ly/m8Tt6c to see if it works. Else your iReb by iH8Sn0w. Follow this: http://bit.ly/k8MNtA. Good Luck. :)

          •  
            irome5 years, 3 months ago

            Thank you very.. I will try it later at home.

          •  
            irome5 years, 3 months ago

            hello,i have try both link provided above but wasn’t successful. the iphoene cannot make it through DFU mode because the power keep ON and OFF so connection can’t continue and stop. anyother way to restore/fix the issue?

            Appreciate your assistance and support.

            Thanks a lot!

          •  
            Pramod5 years, 3 months ago

            Can you explain to me as to how did you get into the Recovery Loop error? Did you try a restore of some kind?

  •  
    robert5 years, 6 months ago

    Does this unlock the iPhone 1G and 2G as well?

  •  
    BlackCrow6 years, 3 months ago

    Hey Guys,

    I just found a solution for unlock iphone 3g/3gs 3.1.3

    check this out : http://www.youtube.com/user/AlexZarz#p/u

    I think this is only the tool unlocks the iphone in baseband 05.12.01
    and ..it worked for me and my friends..

    check it : http://www.youtube.com/user/AlexZarz#p/u

    cheers

  •  
    Funnyguy6 years, 7 months ago

    I tried to jailbreak my iphone 3g first with the instruction from Youtube and then use this instruction. It WORKED for me. WOoottt. Goodluck everyone.
    Youtube link: http://www.youtube.com/watch?v=ecSmluLInFY