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Thread: Jailbreaking 3GS 3.0 and upgrading to 4.3.3

  1. #1
    Default Jailbreaking 3GS 3.0 and upgrading to 4.3.3
    I am trying to jailbreak and unlock a 3GS running 3.0 but nothing I do will work. Every time I run redsn0w the pwned DFU mode fails as it does in Pwnage tool. Any ideas? Thanks.

  2. #2
    Livin the iPhone Life
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    If you want to unlock (use a non-authorized carrier), don't use Redsn0w. You must create a custom firmware using PwnageTool or Sn0wbreeze and install that. Only PwnageTool and Sn0wbreeze create custom firmwares. Redsn0w is mostly used by users who don't need an unlock.

    Settings/General/About: What is the Modem Firmware version?

    Also note: A 3GS requires SHSH blobs to load any firmware. TinyUmbrella The Firmware Umbrella - TinyUmbrella does 2 things: download and store all available SHSH blobs, and act as a server and provide the SHSH blob when loading a firmware. TU is not necessary for 4.3.3 because Apple is giving that away free today
    Last edited by Mes; 2011-07-11 at 05:03 PM.

  3. #3
    I use redsn0w just to get it into pwned dfu mode then cook a custom firmware with pwnagetool. But the phone fails each time I try to enter DFU and wont take a firmware in iTunes. I am running 04.26.08 baseband. Any ideas? Thanks.

  4. #4
    Livin the iPhone Life
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    Any iTunes error? What firmware are you trying to load? If it's 4.3.3, then check your hosts file and delete anything with *apple.com. The SHSH blob request should be going to apple.

    When entering DFU mode on my 3GS, I must release the power button before 10 seconds (usually around 8 or 9 seconds).
    Last edited by Mes; 2011-07-11 at 05:09 PM.

  5. #5
    The iTunes error is usually "could not be restored because the firmware is not compatible." But the real problem is that it never goes into DFU mode correctly. I have tried to load 4.1, 4.3, and 4.3.3. Still no luck with any of them.

  6. #6
    Livin the iPhone Life
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    I edited my last post and added my personal issue with 'entering-DFU' mode. Did you see it? Try releasing the power button a bit early.

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