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Update iPhone 4/3GS to iOS 6 While Preserving Baseband Using Redsn0w

While updating to the latest iOS firmware does have quite a number of advantages, not everyone is willing to take the plunge as there are bound to be negative consequences. This is especially true when it comes to jailbreak users and to iPhone owners who are relying in an unlock solution. The latter is especially affected because a firmware update will update their baseband thus rendering their device unusable in terms of phone functions. Unlockers have been staying clear of updating to iOS 6 because it will update their basebands. If you are someone who relies on an unlock, then you will be happy to know that the latest version of Redsn0w will enable you to update iPhone 4/3GS to iOS 6 while preserving baseband.

Update to iOS 6 While Preserving Baseband
In this tutorial we will teach you How to Update iPhone 4/3GS To iOS 6 While Preserving Baseband Using Redsn0w, which should definitely come in handy for unlockers. Keep in mind that this tutorial is ONLY applicable with the iPhone 4 and iPhone 3GS, not the iPhone 4S.

Steps on How to Update to iOS 6 While Preserving Baseband Using Redsn0w:

  1. You will of course need to download the latest version of Redsn0w. Download 0.9.15b2 from our previous post.
  2. Extract the downloaded to your desktop or any desired directory. Look for the redsn0w.exe file and double-click it to launch Redsn0w. For Windows users, open redsn0w.exe as an administrator by right-clicking on the file and selecting Run as Administrator.
  3. Redsn0w-Run-As-Administrator

  4. On the main screen of Redsn0w, click the Extras button and on the next screen click Even More and then click Restore.
  5. Redsn0w-0.9.15b1 Main
    Redsn0w Restore IPSW

  6. Click the IPSW button and it will allow you to browse for the iOS 6 IPSW file for your iPhone 4 or iPhone 3GS. Download links for iOS 6 IPSW files are here. Select the firmware file and click the Open button.
  7. Redsn0w Select IPSW
    Browse iOS 6 IPSW

  8. Redsn0w will ask you if you would like the tool to modify the IPSW in order to prevent the baseband from being updated. You will of course want to click Yes here.
  9. Redsn0w Prevent Baseband Update

  10. Another window will pop out that will prompt you to connect your iPhone 4 or iPhone 3GS and put it in DFU Mode. Connect your device via USB and click OK to proceed.
  11. Redsn0w Pwned DFU Required

  12. You will see the DFU preparation instructions and will instruct you to connect and turn OFF your device. If you are ready, then click Next.
  13. Prepare-DFU-Mode

  14. Redsn0w will then display onscreen instructions as to how to put your device into DFU Mode. Just follow the instructions displayed or you can follow the steps below:
  15. Hold down Power (corner) button for 5 seconds.

    Without releasing the Power button, also hold down the Home (bottom center) button along with the Power button for 10 seconds.

    Without releasing the home button, stop holding down the power button for up to 15 seconds.


  16. Once DFU Mode is detected, the device will now be exploited with Limera1n. Redsn0w will then prepare a restore image and then proceed to restore the device.
  17. Redsn0w Exploiting-Limera1n
    Redsn0w Prepare Restore Image_1
    Redsn0w Restoring IPSW

  18. When the restore process is complete, you should see a notification from Redsn0w.

Congratulations, you have just updated your iPhone 4 and iPhone 3GS to iOS 6 while preserving your baseband! So you now have the latest firmware and be able to use an unlock solution such as Ultrasn0w or Gevey SIM. If you have any questions regarding how to Update to iOS 6 While Preserving Baseband, then do leave a comment below.

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    Sujon7 years, 12 months ago

    hello … hope you are doing good.  I have a question. I have
    iphone 3gs running on ios 4.3.3 and baseband is 06.15.00. I want upgrade
    to ios 6.0.1 and also want to jailbreak & unlock it. I am a new iphone user. My
    question is can i upgrade my ios and does 6.0.1 supports jailbreak? I
    will be glad if u give me step by step tutorial on how do i upgrade my
    phone and jailbreak.. Hope to have a reply from you very soon. Thank

    tukem8 years, 2 months ago

    i got old booth 3gs v4.1 w/bb 06.15.00 trying to upgrade to v6.1.3 keep getting message exploit failed…should i remove ultrasnow 128 b4 upgrade? could that be the reason it failed..please advise, thanks

    Parth Rustagi8 years, 5 months ago

    Hello, I got a error which says ” Couldn’y find 6.0 blobs ” Can anybody help me what should I do

    jimoh8 years, 5 months ago

    Hello,please have tryed this with iphone 3gs 4.1,but i want to upgrade to 5.1 after dfu and the phone was deteded by redsnow and just wipe off,please help me

    jay8 years, 9 months ago

    i have iphone 4. but i need file iphone 3.1. there is only 3.2 and 3.3…. PLEASE HELP

    Mounir8 years, 9 months ago

    Hi allI have a 3GS wih IOS 4.1  BB 05.13.4 (earlier 05.16.00 after downgrading using redsnow)shall restore to IOS 6 with BB preservation or not. 

    Burns8 years, 9 months ago

    stuck in recovery – iphone 3gs ios 4.1 error 2601 – any solution?

    vbmaster8 years, 9 months ago

    Nobody is trying this solution?

    Shiboleth8 years, 9 months ago

    After the tenth step, it tgells me that the phone is not in restore mode? has this happened to anyone?

      Moki8 years, 9 months ago

      Yes, it happened to me… it wants you to put it in DFU Mode but then it says that the device is in DFU Mode instead of Recovery? What… the… fuck…I’m busting my ass for over a week, trying to fix my iPhone 3GS… this is not helping…

        netun08 years, 9 months ago

        me too

        D8 years, 5 months ago

        any luck? im having same the issue..

        achraf8 years, 1 month ago

        the same problem found device in DFU mode instead of recovery modplease any sollution

          Patrick Gumban8 years, 1 month ago

          Hmm, try to use Redsn0w’s Extras > PWNED DFU and see if it works.

    ben8 years, 9 months ago

    i get and error from redsnow (error 2601) and i got stuck in recovery mode ! help. (iphone 3gs ios4.2.1 bb 5.13.04) 

      ilyasssssssss8 years, 9 months ago

      for 2601 error try to open 6.0 ipsw with winrar  and delete the 3 lines which countains 4.12….. baseband after try to restore using itunes after you get a xxxx error open redsnow and try to restore with preserve bb that orks for 100% after that jailbreak thetred 6.0 and enjoy everybody leave a commentss hereeeeeeeeeeeeeeeeee