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Discuss Need help in upgrading jailbroken+unlocked 3GS(new bootrom), ios 4.0.1 to 5.1.1 at the iOS 5.x - Hackint0sh.org; Hi guys. I have an already jailbroken and unlocked 3GS currently running: - ios4.0.1 - ...
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    Question Need help in upgrading jailbroken+unlocked 3GS(new bootrom), ios 4.0.1 to 5.1.1

    Hi guys.

    I have an already jailbroken and unlocked 3GS currently running:
    -ios4.0.1
    -New Bootrom 359.3.2
    -Baseband: 05.13.04

    I have never jailbroken myself before. I now I want to upgrade to 5.1.1 which I want to both jailbreak and unlock.

    I m not sure how to proceed because there are tons of tutorials out there.

    All I understand is
    1.I have to preserve baseband since I m planning to unlock.
    2.For upgrading to 5.1.1 absinthe can be used.



    Help me out guys.

    P.s. Running Windows XP (no I don't live in caves, lol), itunes version 10.5.0.142
    Last edited by an3urysm; 06-20-2012 at 06:29 PM.



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    Hi,

    You need to use redsnow (grab the latest version from blog.iphone-dev.org) in the Extras section you can find an option 'Custom IPSW' which will create a custom firmware, preserving the baseband. You should then feed the 5.1.1 IPSW to redsnow so it can create a custom IPSW, which you will use to restore your iPhone 3Gs and get to 5.1.1 jailbroken, there you can finally install ultrasn0w and get the unlock.

    Let me know how it goes,
    Rafael

 

 

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