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Thread: 3GS Downgrading from 4.0.1 to 4.0

  1. #1
    Default 3GS Downgrading from 4.0.1 to 4.0
    Hey guys, looking to downgrade to 4.0
    On cidya's homepage it says i have 3.1.3 and 4.0 shsh blobs saved, is it possible to downgrade to 4.0?
    Updated straight from 3.1.3 to 4.0.1

  2. #2
    Retired Moderator iYeow's Avatar
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    Yes, it is possible to downgrade but why do you want to downgrade from 4.0.1 to 4.0

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    Poseidon79 (2010-08-05)

  4. #3
    I seems to have a few issues with 4.0.1, I'm having trouble connecting to 3g or edge and getting no service in areas were i always could.

  5. #4
    Retired Moderator iYeow's Avatar
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    4.0 or 4.0.1 is basically the same unless you want to downgrade to 3.1.3.

  6. #5
    I want to do the same. I upped to 4.0.1 just so I could try the new jailbreakme.com and I want to downgrade for 2 reasons:

    1. The glitch on the boot logo where the spinner over laps the apple logo and the colorful line in the top right side. and,
    2. I miss my custom boot logo.
    (mainly the 1st reason though) lol
    And yes, the boot logo glitch bugs me enough to want to downgrade (I get OCD about things like that.. and because there's no update in 4.0.1 other than different bars and calculation to show them...

    I am able to downgrade to a stock 4.0, but when I try to downgrade to a Pwnage custom 4.0 After it extracts I get the 1604 error. I have tried this in both restore and DFU mode.

    EDIT: oh yeah.. On Leopard PPC, iTunes 9.2.1, iPhone 3GS
    Last edited by compilez; 2010-08-05 at 12:48 AM.

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    Retired Moderator iYeow's Avatar
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    Oic, unfortunately i think Jailbreakme.com , same as Spirit jailbreak is not compatible with pwnage tools.

  8. #7
    I was previously jailbroken on Pwnage tool... This is the first non pwnage tool done on this iphone. And I thought it was "Once pwned, always pwned"?

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    Retired Moderator Poseidon79's Avatar
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    There is NO diff between 4.0 and 4.0.1 except the formula used to display bars. Downgrading will no nothing.

  10. #9
    I know there is no difference... I'm saying that the boot logo glitch annoys me enough to get 4.0 back on because so I can get rid of it. and I can't use Redsn0w because he current version that breaks 4.0 and 4.0.1 because it's not PPC friendly yet.

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    Retired Moderator iYeow's Avatar
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    If you want to use Pwnage tool, you have to downgrade to 3.1.2, then use either Redsn0w 0.9.2 or Blackra1nRC3 to jailbreak, only then restore to CFW.

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    compilez (2010-08-05)

  13. #11
    Hey guys I have an iPhone 3GS but it's locked on 4.0.1.I have read about jailbreakme but I have no access to my iPhone because its on the Emergency Call screen.How can I jailbreak?It was at my friends house and he clicked update.I have downgraded my iPhone 3G from 4.0.1 to 3.1.3 but wanted to know if I can use resnow to do the same on my 3GS?

  14. #12
    yeow202, THANKS!!! That worked!!!

  15. #13
    Jedisky, I have the same problem, however I have not been able to downgrade to 3.1.3 or 3.1.2 How were you able to do that?

    3GS itunes 9.2.1 snow leopard

  16. #14
    I have two iPhones but have only managed to downgrade my 3G not my 3GS yet.Im trying to find out how to downgrade but only thing I can think of is to order an AT&T sim card and access safari and then use jailbreakme.

  17. #15
    Livin the iPhone Life eddietah's Avatar
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    Quote Originally Posted by electro-shocks View Post
    Hey guys, looking to downgrade to 4.0
    On cidya's homepage it says i have 3.1.3 and 4.0 shsh blobs saved, is it possible to downgrade to 4.0?
    Updated straight from 3.1.3 to 4.0.1
    Read This

  18. #16
    What's Jailbreak? rich76's Avatar
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    Default Please help....
    I have a 3gs old bootrom and mb model. I upgrade to 4.0.1 from 4.0. Now I'm stuck in the emergency call. I'm not using a legit sim card. Is there a way I could jailbreak the 4.0.1? What software to use? When I downgrade to 4.0 its always error. I redirect the host to suriks server but still error. Nothing is working for me. Please anyone..... Thanks in advance.

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