iOS 4.0 How Can I Downgrade 4.0.2 to 4.0

Discussion in 'iOS Jailbreak & Cydia' started by ijailbreak3dot0, Aug 12, 2010.

  1. ijailbreak3dot0

    ijailbreak3dot0 Member

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    My friend, whose iPod I was going to jailbreak soon, accidentally upgraded to OS 4.0.2. They have a 8GB 2g MC model. Since this person is "normal" and knows nothing about stuff like SHSH blobs, etc, they did not back up their SHSH blobs.

    Is there any way to downgrade their iPod Touch MC to 4.0 without SHSH blobs?

    Thank you.
  2. alphonse3344

    alphonse3344 Well-Known Member

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    Not really.
    I think Apple stopped signing the 4.0 firmware.
    I think your out of luck my friend. Wish I can help.
    Unless...try installing tinyumbrella.
    Then search for the ipod in advanced search.
    Click Save SHSH
    Tell me what happens.
  3. ijailbreak3dot0

    ijailbreak3dot0 Member

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    It's my friends iPod... lol

    I don't have access to it right now
  4. 42395_skyline

    42395_skyline Community Development Staff Member

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    Try a regular DFU restore to 4.0.
  5. ijailbreak3dot0

    ijailbreak3dot0 Member

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    So if I just put it in DFU mode and downgrade from 4.0.2 to 4.0, it should work?

    MC model 8gb 2G ipt
  6. iRa1n

    iRa1n Banned

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    Yeah just try the regular restore. It should work unless apple have stopped signing 4.0 firmware already. You will know if you get an error while it says verifying ipod restore
  7. alphonse3344

    alphonse3344 Well-Known Member

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  8. rykah

    rykah Member

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    But definitely go for the DFU restore first, it's more likely to work if Apple HAS stopped signing 4.0s.
  9. Moabubaker

    Moabubaker New Member

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    I've got the same problem, I accidently updated to 4.0.2 and now I want to go back to 4.0 (iPod Touch 3G), using the umbrella software I've been able to get the shsh thing from the cydia server (as I did jailbreak before when I had 4.0). The problem is when I put the iTouch into recovery mode then click on shift+restore and choose the .ipsw 4.0 firmware file it says firmware is not compatible.

    Can someone please help ?
  10. y2kss66

    y2kss66 New Member

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    What size iPod do you have?

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