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Discuss Downgrade 3G 5.13.04 on 4.0.2 to 3.1.x at the iOS 4.x (iPhone OS 4.x) - Hackint0sh.org; My 3G is unlocked and JB via Redsn0w and blacksn0w. It ran bad before the ...
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    Default Downgrade 3G 5.13.04 on 4.0.2 to 3.1.x

    My 3G is unlocked and JB via Redsn0w and blacksn0w. It ran bad before the sn0w mods and I want to downgrade to 3.1.x. How do I go about doing this? As I understand- 3G only needs SHSH for 4.0 and higher - you have no restrictions on restoring to iOS 3.x?

    I don't have easy access to a Mac so PC method is only likely solution.


    Iphone 3G
    version 4.0.2
    firmware 05.13.04

    BTW did Apple ever fix the bugs on OS4 with the 3G? I'm guessing they did, but it cant be unlocked or jailbroken.

    Thanks
    Last edited by scramison; 03-10-2011 at 08:17 PM.



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    Super Moderator Array Olethros's Avatar

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    You can't be unlocked with blacksn0w with that baseband, you must be using ultrasn0w for unlock.

    I don't own a 3G iPhone, but reports are - with correct activation - iOS 4.1 and 4.2.1 run quite okay on the 3G, with comparable speed to 3.1.3

    You can simply downgrade to stock 3.1.3 and then jailbreak with redsn0w 0.9.2 (or 0.9.4) - be sure to use a 3.1.2 IPSW when redsn0w asks for one. Then install ultrasn0w.
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
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    iPad 3G 64GB (4.3.3, Redsn0w) oldest SHSH 3.2.2
    iPhone 4 32GB (4.2.1, Redsn0w JB-monte) oldest SHSH 4.1
    iPhone 3GS 32GB (4.3.3; Pwnagetool) factory unlocked oldest SHSH 3.1
    iPhone 8GB (3.1.3; Pwnagetool) AT&T Locked - Unlocked with bootneuter

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    I tried to downgrade to 3.1.3 via itunes using the shift restore method and this must be incorrect because I got an error 1015.

    Now Im in recovery mode and cant simply reload 4.0.1

    Please help with any suggestions about what can be done. Maybe I was supposed to use Pwn or something?

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    Super Moderator Array Olethros's Avatar

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    This error (1015) is common when downgrading iPhones and 3G-enabled iPads. The problem occurs when the device has a baseband with higher version number than the baseband in the firmware you just restored to. Just use TinyUmbrella to exit recovery mode.
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
    -

    iPad 3G 64GB (4.3.3, Redsn0w) oldest SHSH 3.2.2
    iPhone 4 32GB (4.2.1, Redsn0w JB-monte) oldest SHSH 4.1
    iPhone 3GS 32GB (4.3.3; Pwnagetool) factory unlocked oldest SHSH 3.1
    iPhone 8GB (3.1.3; Pwnagetool) AT&T Locked - Unlocked with bootneuter

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    Did we solve your problem? Got a dollar or two spare ? Donate!

 

 

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