iOS 4.0 Downgrading Iphone 3GS 4.0

Discussion in 'iOS Jailbreak & Cydia' started by andysherman, Jun 23, 2010.

  1. andysherman

    andysherman Member

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    I need to downgrade my iphone 3gs from 4.0 to 3.1.3, because of the new data plan that apple now has on 4.0, and when I try to downgrade with DFU mode, the normal way, i get an error saying that " The Iphone "IPhone" could not be restored. This device isn't eligible for the requested build". Does anybody know how to help me?
  2. -lkv-

    -lkv- New Member

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    Its because you didnt backup your shsh blobs
  3. andysherman

    andysherman Member

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    how do i do that, im bak on 4.0 normal?
  4. -lkv-

    -lkv- New Member

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    No before ios 4.0 was release nor before you updated, you needed to have your iphone shsh blob saved on 3.1.3 in order to restore back to 3.1.3, now your stuck on ios 4.0
  5. andysherman

    andysherman Member

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    wow, that sucks
  6. hacker2021

    hacker2021 Member

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    That's Apple for ya.
  7. Kirgan

    Kirgan New Member

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    So is there NO way to downgrade from iOS4 on iPhone 3GS without the blobs?
  8. Ortizman3289

    Ortizman3289 New Member

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    I believe you can downgrade to 3.1.2 with no problems from 4.0.
  9. ThatGEEKFreak

    ThatGEEKFreak Active Member

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    Again if you have the SHSH blobs only.
  10. Bubalooshi

    Bubalooshi Active Member

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    Changing from 4.0 to 3.1.3 won't change your plan with AT&T.

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