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  1. #1


    Member Since
    Feb 12, 2010
    Posts
    7
    Downgrade from 4.0.2 to 3.1.3 not working
    I'm trying to downgrade my 3GS firmware from 4.0.2 to 3.1.3 and iTunes 10 keeps trying to verify the package and tells me I can't perform the restore for my device. I've seen various posts about this, but nothing seems to work so far. Any help would be greatly appreciated...

  2. #2

    halo200's Avatar
    Member Since
    Sep 08, 2007
    Location
    Spain
    Posts
    541
    Specs:
    15" Macbook Pro 2.0Ghz i7 8GB AMD 6490M 256OCZ Vertex 4 SSD | iPhone 5S 16GB
    The only way you can downgrade your iOS is if you have jailbroken your iOS Version you want to downgrade to and have had your SHSH blobs saved. If you havn't then your outta luck. Apple has stopped signing the restores on their Servers so you can only go up, not down.

  3. #3

    mdfuller's Avatar
    Member Since
    Nov 01, 2007
    Location
    Sconie
    Posts
    1,217
    Specs:
    15-inch MacBook Pro
    Quote Originally Posted by smcmackin View Post
    I'm trying to downgrade my 3GS firmware from 4.0.2 to 3.1.3 and iTunes 10 keeps trying to verify the package and tells me I can't perform the restore for my device. I've seen various posts about this, but nothing seems to work so far. Any help would be greatly appreciated...
    Just curious. Why are you trying to downgrade?

  4. #4

    cwa107's Avatar
    Member Since
    Dec 20, 2006
    Location
    Lake Mary, Florida
    Posts
    26,872
    Specs:
    15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD
    Quote Originally Posted by mdfuller View Post
    Just curious. Why are you trying to downgrade?
    Was thinking the same thing.

    4.0.2 was murder on my 2G iPod Touch. But 4.1 was a night and day difference. I would upgrade before you go trying to revert. I think you'll be pleasantly surprised.
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

  5. #5

    mdfuller's Avatar
    Member Since
    Nov 01, 2007
    Location
    Sconie
    Posts
    1,217
    Specs:
    15-inch MacBook Pro
    I know some people are freaked out to try the latest and greatest, but it has been years since I have had to downgrade in order to get something to work or for better performance.

  6. #6


    Member Since
    Feb 12, 2010
    Posts
    7
    I wanted to downgrade so that I could jailbreak it. I can't find any jailbreak services that will do 4.0.2 yet...

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