Unjailbreaking + Preserve baseband

Discussion in 'Jailbreaks and iOS Hacks' started by SS-I, Jul 6, 2012.

  1. SS-I macrumors newbie

    Joined:
    Jul 6, 2012
    #1
    Hi all, newbie here looking for some help~

    Background info:
    - Iphone 4
    - Jailbreak ios4.1
    - Baseband 02.10.04

    Like to unjailbreak and update to 5.1.1, and may want to preserve baseband for unlocking flexibility. Will not jailbreak after updating to latest ios.

    If I'm to restore using itune, it'll update ios to 5.1.1 directly right? Which will update my baseband as well I believe?

    Anyone knows how I should go about doing this?

    Thanks!
     
  2. ZCherub macrumors 6502a

    ZCherub

    Joined:
    Jul 7, 2010
    Location:
    GA, USA
    #2
    Download a program called RedSn0w. You can make a firmware without a baseband so that you keep your current one. Be aware that you'll have a cosmetic issue in which your phone only shows 1 bar of signal strength (doens't impact actual performance/reception).

    Cruise over to iClarified.com and look it up in the tutorials section under iPhone > Jailbreak. All the links for downloads are included in the tutorial as well.

    Good luck, and post here/PM me w/ any questions.
     
  3. SS-I thread starter macrumors newbie

    Joined:
    Jul 6, 2012
    #3
    I read a few instructions on the Redsnow method, but would it not jailbreak after the update?

    I like to keep it non-jailbroken afterwards.
     
  4. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #4
    Jailbreaking is a separate step done after restoring.
    If you don't want to jailbreak, just restore it, don't jailbreak it.
     
  5. ZCherub macrumors 6502a

    ZCherub

    Joined:
    Jul 7, 2010
    Location:
    GA, USA
    #5
    You're only using RedSn0w to make a custom firmware that will leave your baseband alone. The only way RedSn0w will jailbreak your device is if you click "Jailbreak" & follow all the prompts.
     
  6. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #6
    You didnt read really into it then.
    Redsnow will create a 5.1.1 ipsw that its the same as stock but will not touch your baseband.
    Then once you restore to that no_bb ipsw you can choose to run redsnow again in order to JB it or leave it as is stock with the old BB.
     
  7. SS-I thread starter macrumors newbie

    Joined:
    Jul 6, 2012
    #7
    Thanks for the help everyone, will give it a try!
     

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