iOS 4.0 Downgrading iOS4 to 3.1.3 or lower Without SHSH Blobs?

Discussion in 'iOS Jailbreak & Cydia' started by iMOMOx, Jul 24, 2010.

  1. iMOMOx

    iMOMOx New Member

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    Is it possible to downgrade from iOS4 to 3.1.3 or lower? I have a friend that had 3.0.1 firmware but upgrade to 4.0 and now trying to downgrade to 3.1.3. He has an iPhone 3GS 16GB MC Model. Should be old baseband. and have not SHSH blobs.
  2. tanktan38

    tanktan38 Active Member

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    No, sorry. Gotta have your SHSH blobs.
  3. iMOMOx

    iMOMOx New Member

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    how about i lend him my shsh blobs? is that possible?
  4. firepelt

    firepelt Member

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    No, it's specific to each device, I think.
  5. HeadReaper

    HeadReaper Well-Known Member

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    Correct.
  6. quest

    quest New Member

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    newbe,

    sorry but what are SHSH blobs? I have a jailbroken iphone 3g v3.0 and want to upgrade to 4.01

    what is the most secure way to do that?

    It had taken me 3 try to jailbreak the first time.\

    quest
  7. gdscei

    gdscei New Member

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    go get an ipsw (iPhone 3G 4.0 (NOT 4.0.1!! NEITHER 4.1 when it comes out!)) and dl the latest redsn0w. just restore to that ipsw and jailbreak. enjoy.

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