iPhone iPhone 3GS: Downgrade to iOS 3.1.3 (testing purposes)

Discussion in 'Jailbreaks and iOS Hacks' started by Macinoah, Aug 26, 2016.

  1. Macinoah macrumors member

    Joined:
    Jun 4, 2016
    #1
    I have a question, will I be able to downgrade to downgrade my iPhone 3GS (new bootrom, running iOS 4.1, 2009 model, A1303) to iPhone OS 3.1.3 without SHSH Blobs? If I am, will I be able to downgrade UNTETHERED? If so, how? Will sn0wbreeze work?
    Thank you!

    NOTE: I am only trying to do this for testing purposes.
     
  2. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #2
    No. You need that devices unique shsh blobs for that firmware version.
    Only the iPhone 2G and 3G don't require shsh blobs to downgrade.
     
  3. Macinoah thread starter macrumors member

    Joined:
    Jun 4, 2016

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