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Thread: Upgrade to 4.1 on 3gs while preserving baseband HELP

  1. #1
    Default Upgrade to 4.1 on 3gs while preserving baseband HELP
    Well, today my boss asked me to unlock his 3GS from work that is on 4.0 and jailbroken with limera1n(by me). i told him that he wouldnt be able to update to 4.1 because of the unlock. Although, i would like to surprise her and get it on 4.1 while preserving baseband.
    Also, either way i need to restore it to another firmware because its got demo software on it from work and it plays an annoying video everytime its left idle!
    (i also only have a pc, NOT a mac)
    I am very up to date on how jailbreaking and unlocking works.
    Just need advice on how to go about doing this the right way.

  2. #2
    PM me your email address and I'll send you a link to download a pwnagetool created custom firmware for 4.1. This will upgrade her phone to 4.1 but preserve the baseband so you can unlock again by reinstalling ultrasnow.

    To use the custom firmware download redsnow and use it ONLY to put your phone in DFU mode. From there it's just a simple shift+restore in itunes.

  3. #3
    Livin the iPhone Life
    Join Date
    May 2008
    Thanked 789 Times in 731 Posts

    +1 Piece of cake

    Be careful: Shift/restore/select custom 4.1 fw in iTunes.

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