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Thread: iPhone 4 downgrade from 4.1 to 4.02/4.01

  1. #1
    Default iPhone 4 downgrade from 4.1 to 4.02/4.01
    I got iPhone4 with OS 4.02... upgraded to OS4.1 by backing up SHSH blob using TinyUmbrella, used Greenpois0n to jailbreak and ultrasnow to unlock and using on T-mobile network, everything works fine expect the most exciting FaceTime (understandable ... as MiTime 1.3 does not support iOS4.1) so decided to downgrade my iOS 4.1 to 4.02 using saved SHSH blob in Tiny Umbrella i always get 3002 error 3194 while restoring, i followed all steps correctly....but i am stuck with iOS4.1 when i see TinyUmbrella my saved SHSH shows as iPhone4 4.1 (8B117)-************** , is this common ...?? i am 100% sure i backed up my SHSH correctly before upgrading to iOS4.1 (also i am advanced iPhone user unlocked 27 iPhone2g , 12 iphone 3g/s and 3 iphone 4)

    I could not understand what else i am doing wrong here ...
    Please help me ...

  2. #2
    Retired Moderator iYeow's Avatar
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    Do you see your 4.0.2 shsh blogs in TU ?

  3. #3
    Yes i see them as "iPhone4 4.1 (8B117)-2102623314894" in my TU... in my iPhone4 Settings->General->About->Version 4.1
    ->Modem Firmware 01.59.00

    so i did it correctly .... but why i couldn't downgrade to 4.02 ..?

  4. #4
    Retired Moderator iYeow's Avatar
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    The 4.1 shsh blogs is for future restore to 4.1, if you want to restore to 4.0.2 , you should also save 4.0.2 shsh blogs, go grab it from Cydia if only you have it. So basically now, TU only have 4.1, you need 4.0.2 shsh blogs.

  5. #5
    Can you pls tell me how can i grab SHSH for 4.02 from cydia .. other than modifying hosts file to "74.208.10.249 gs.apple.com" bcoz when i try this i always get restore error 3194...

  6. #6
    Retired Moderator iYeow's Avatar
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    What version of TU are you using ? Do you have verison 4.1.4

  7. #7
    i have TU 4.1.11 (which is latest for windows)

  8. #8
    Retired Moderator iYeow's Avatar
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    Connect your device, device must be bootable.
    Run TU
    On the left side of the screen , highlight your device name
    Now click save shsh at the bottom right
    Wait...it will download all the shsh blogs available from Cydia.

    If it only download 4.1 shsh blogs which you already have, and doesn't show anymore shsh. Then you only have 4.1 shsh blogs and nothing else. You have to face the reality that you don't have anything lower than 4.1.

    Facetime problem can be fixed on iphone 4
    Last edited by iYeow; 2010-10-23 at 07:32 AM. Reason: Automerged Doublepost

  9. #9
    no use...
    i only get to save 4.1 SHSH, i have checked the option "request SHSH from Cydia" also .. but i only see "iPhone4 4.1 (8B117)- **"

  10. #10
    Retired Moderator iYeow's Avatar
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    Did you use limera1n to hactivate and jailbreak your iphone 4 ?

  11. #11
    no i used my friends ATT SIM to activate and jailbroke using greenpoisi0n and unlocked using UltraSn0w

  12. #12
    Retired Moderator iYeow's Avatar
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    Ok, why do you want to downgrade ? Everything should be working right ?

    Is facetime working ? and what carrier are you using ?
    Last edited by iYeow; 2010-10-23 at 07:51 AM. Reason: Automerged Doublepost

  13. #13
    Everything works fine, i am just missing FaceTime...! I am using it on T-Mobile, when i use my friend ATT sim Facetime works fine in my phone... but when i use it on T-mobile it "waiting for activation..." and also i got charged for 39 international text msgs ...

  14. #14
    Retired Moderator iYeow's Avatar
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    You can activate your factime. Go to setting > General > about > see if your carrier bundle is ATNT. Let me know if it is, then maybe I can fix you up with facetime.

  15. #15
    Mine it says Setting->General->About-> Carrier Carrier 8.0, pls note that iam using T-Mobile SIM now ..

  16. #16
    Retired Moderator iYeow's Avatar
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    Is that carrier 8.0 for ATNT or for T-mobile.

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  18. #18
    Retired Moderator iYeow's Avatar
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    Ok, then you should be able to get Facetime. Is it not activated ?

  19. #19
    Correct, but looks like i have no way to activate FaceTime as MiTime 1.3 won't work with OS4.1, please let me know if you know any other way to activate FaceTime for T-mobile on OS4.1

  20. #20
    Retired Moderator iYeow's Avatar
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    Your carrier bundle is correct,you said earlier that you got charged for international messaging through facetime sms messaging to get it activated right ? then how come it didn't get activated.

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