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Thread: 3.1.3 want 4.1

  1. #1
    Default 3.1.3 want 4.1
    I currently have an 3Gs that is jailbroken plus unlocked and using T-mobile.

    It is now running:
    Bootloader 06.04
    Baseband ICE2-05.12.01
    ISO 3.1.3
    Model MC

    I would like to upgrade to 4.1 completely restore the phone and keep the jailbreak plus unlock/T-mobile.

    Is this possible? I started sn0wbreeze 2.0.2 and a bunch of warnings came up.

    Any help would be appreciated, Thanks
    Chris

  2. #2
    Use pwnage tool 4.1.2

  3. #3
    Superbad Modder-ator Simon's Avatar
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    If you have new bootrom your only option right now is to have a mac and use pwnage tool to make a custom 4.1 so that you can preserve your baseband and unlock again. Or have a friend with a mac make a custom 4.1 for you and then you can use redsn0w to prepare the iphone for a custom firmware so that you can use windows to restore to it.

  4. #4
    pwnage tool 4.1.2 won't work for me I have a PC.

    Is there a pre-made ipsw that I can download?

  5. #5
    Superbad Modder-ator Simon's Avatar
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    I'm sure there is one out there somewhere in google land

    Then you would just have to use redsn0w 0.9.6b2 to prepare it for the custom firmware.

  6. #6
    iPhoneaholic dotFIVE's Avatar
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    Make sure you download your custom firmware from a trustworthy source!


    Sent from my iPhone using ModMyi

  7. #7
    Just figured out I have an old bootrom.

  8. #8
    Retired Moderator iYeow's Avatar
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    What tool did you use to jailbreak your 3.1.3 ?

    Do you know what shsh blogs do you have ?
    Last edited by iYeow; 2010-11-05 at 05:17 AM. Reason: Automerged Doublepost

  9. #9
    I just got the phone today and have idea how it was jailbroken. It was unlocked with ultrasn0w.

    I tried to create a ipsw with sn0wbreeze and when I restore I get error 1604. So right now I need a correct ipsw or I'm screwed I think.

  10. #10
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    It's important to know what it was jb with cuz there are stipulations for a 3GS to use custom firmwares unless you have a Mac, then the new Pwnagetool should do just fine.

    I believe you could also use a custom fw made by Pwnagetool for 4.1 from another user but I forgot what else you have to do to make it work on Windows. Something about setting into DFU mode with a jb tool that does so. Lol, someone needs to help me clarify this part.

    Aside from that, Yeow wanted to know if you have SHSHs saved. Cuz if you have it for 3.1.2, it'd be very easy to get you down to 3.1.2, jb with blackra1n, then up it to 4.1 with Sn0wbreeze 2.0.2.

  11. #11
    If I had a nickel... thazsar's Avatar
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    Have u tried RecBoot to get out of Recovery Mode after that 1604 Error?

  12. #12
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    I don't believe 16xx errors apply for that. 1011, 1012, 1013, 1014, 1015, and 1004 means a successful restore but a baseband downgrade failure which Recboot can then be used.

  13. #13
    If I had a nickel... thazsar's Avatar
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    I could be wrong (probably wrong!) but I thought I had a 16xx error when I upgraded to 4.1 on my ip4 but when I used RecBoot, I was upgraded and back to normal. Again, I might have seen the wrong error code but it doesn't hurt to try!

  14. #14
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    it probably wasn't error 1604. You probably saw 1004. Or 1014. But yes it won't hurt to try.

  15. #15
    If I had a nickel... thazsar's Avatar
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    Ur prolly right. I remember that when I saw the specific error code, I thought to myself that I wouldn't be able to use RecBoot but I tried it anyways and it was successful.

  16. #16
    RecBoot won't even run on my computer?

    Phone is still stuck in recovery mode and error 1604 3 times in a row now. Will try again.

  17. #17
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    What machine are you running?

  18. #18
    If I had a nickel... thazsar's Avatar
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    Does TinyUmbrella have a kick-out tool?

  19. #19
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    It does, give it a go.

  20. #20
    To make custom fw created with pwnage tool work on windows. Run redsnow point at normal Ipsw, use redsnow to put phone in dfu which does first part of exploit. Once phone in dfu open iTunes and shift restore to custom Ipsw.

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