iOS 3.1 iOS4 to 3.1.3

Discussion in 'iOS Jailbreak & Cydia' started by Dolanz, Jul 1, 2010.

  1. Dolanz

    Dolanz New Member

    Jan 31, 2010
    Likes Received:
    iPhone 3GS (White)
    Hay guys I'm trying to downgrade my 3GS(MC/New BootRom) back to 3.1.3
    I did backed up my SHSH,but.... forgot to write down my ECID..
    Is there anyway to downgrade iOS4 back to 3.1.3?

    I also tried Recboot and fail...

    Thx in advance

    EDIT: Yay!!!! found a solution
    Amin Delete the link if not ok:

    After Unstalling those five programs and rebooted windows
    Installed iTunes 9.1 and run Blackra1n
    iPhone should be blackscreen(thats ok!!)
    Just power ur iPhone back should restart soon and itunes will activate it
    oh and dnt forget to delete ur old iTunes library or iTunes would not run

    Back to 3.1.3 3GS sooo happy!!!!
    now to JB with Spirit kekekeke

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