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Discuss Upgrade/Unlock iPhone 4 - Help at the Ultrasn0w (3G(S)/iPhone 4 unlock) - Hackint0sh.org; Hi, I've had my iPhone 4 for about 6 - 8 months. Its jailbroken on ...
  1. #1
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    Default Upgrade/Unlock iPhone 4 - Help

    Hi,

    I've had my iPhone 4 for about 6 - 8 months.

    Its jailbroken on firmware 4.0.1 with ultrasnow installed (Baseband of 1.59.00)
    I've been avoiding updating my firmware in fear of losing my Unlock which would ultimatly make my phone useless.

    I would like some information on Updating my firmware to 4.3.1 and having an Unlock still work, hopefully keep my baseband of (1.59.00)
    I know there are a few tutorials/guides online, but would still like to be reassured these methods work.

    If anyone has any information for me, it would be greatly appreciated.
    Thanks



  2. #2
    Super Moderator Array Olethros's Avatar

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    Yes this is possible (you need to be preapred and careful) - I recommend you use Pwnagetool 4.3 (if you have access to a mac)

    There are a lot of different guides and many of them are not entirely correct.

    What works:
    restore with Custom IPSW made with pwnagetool 4.3 to block baseband update
    TinyUmbrella - save 4.3.1 SHSH, start TSS server, restore or upgrade to 4.3.1 via iTunes. Then jailbreak with redsn0w 0.9.6rc12

    Reported to work (but not supported here)
    restore with Custom IPSW made with latest sn0wbreeze (2.5.1) to block baseband update.
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
    -

    iPad 3G 64GB (4.3.3, Redsn0w) oldest SHSH 3.2.2
    iPhone 4 32GB (4.2.1, Redsn0w JB-monte) oldest SHSH 4.1
    iPhone 3GS 32GB (4.3.3; Pwnagetool) factory unlocked oldest SHSH 3.1
    iPhone 8GB (3.1.3; Pwnagetool) AT&T Locked - Unlocked with bootneuter

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    Did we solve your problem? Got a dollar or two spare ? Donate!

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    Default

    I've found these guides online

    How to Update to iOS 4.3.1 and Preserve iPhone 4 1.59.00 Baseband [Tutorial]

    How to Jailbreak iPhone 4.3.1 with PwnageTool

    Also some on iClarified.

    I'm familiar with PwnageTool since i used to use that on my Mac back in 2.0 firmware days.

    Where exactly is the option to NOT update the baseband???

    Thanks for the help

  4. #4
    Super Moderator Array Olethros's Avatar

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    Use the iClarified guides, they aren't perfect but they are some of the best.

    There is an option in "expert" mode to "disable" baseband update. If it's greyed out, it means that the baseband will never be updated via this custom IPSW.
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
    -

    iPad 3G 64GB (4.3.3, Redsn0w) oldest SHSH 3.2.2
    iPhone 4 32GB (4.2.1, Redsn0w JB-monte) oldest SHSH 4.1
    iPhone 3GS 32GB (4.3.3; Pwnagetool) factory unlocked oldest SHSH 3.1
    iPhone 8GB (3.1.3; Pwnagetool) AT&T Locked - Unlocked with bootneuter

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    Did we solve your problem? Got a dollar or two spare ? Donate!

 

 

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