Is it possible to downgrade from 4.2 to 4.1?

Discussion in 'iPhone' started by lewy, Dec 22, 2010.

  1. lewy macrumors regular

    Joined:
    Nov 6, 2010
    #1
    Hello.

    I have iOS 4.2 on my iPhone 4 and I'd like to change it.

    IMO, 4.1 is better and I want to downgrade. Is it possible?
     
  2. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
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    #2
    Yes, but only if you have your SHSH blobs (Google them).

    And a simple MRoogle search would have shown you many threads about this already.
     
  3. lewy thread starter macrumors regular

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    Nov 6, 2010
    #3
    I don't have any SHSH blobs. Can I download someones?
     
  4. Intell macrumors P6

    Intell

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    #4
    Download Tinyumbrella, plug in your iPhone and click "Get SHSH". If it is able to get the SHSH blobs for 4.1, then you can go back to it. If it cannot, then you will never be able to go to 4.1 on that iPhone.
     
  5. ssdeg7 macrumors 6502a

    ssdeg7

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    Jul 15, 2010
  6. lewy thread starter macrumors regular

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    Nov 6, 2010
    #6
    Ok, I downloaded TinyUmbrella, I clicked 'Save SHSH' and it saved and now what? :) I'm sorry for my stupid questions, but I really need help with that :).
     
  7. Intell macrumors P6

    Intell

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    #7
    What versions does TinyUmbrealla say it has for you iPhone. It should say it right in the main window.
     
  8. lewy thread starter macrumors regular

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    Nov 6, 2010
    #8
    Unfortunately it says, that installed version is 4.2.1 and baseband is 03.10.01-ICE_2_8.

    So I should have done when I had 4.0.2...
     
  9. Intell macrumors P6

    Intell

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    #9
    In the centre of the main window there is a list titled "All saved SHSHs:" What does it say in there?
     
  10. lewy thread starter macrumors regular

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    Nov 6, 2010
  11. Intell macrumors P6

    Intell

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    #11
    If all it says is 4.2.1, then there is no way to go back to 4.1.
     
  12. jason221 macrumors 6502

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    Jun 26, 2009
    #12
    You can only downgrade to firmwares that you have SHSHs saved.
     
  13. lewy thread starter macrumors regular

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    Nov 6, 2010
    #13
    So, I wouldn't be able to downgrade to 4.1. Because, when I wanted do upgrade from 4.0.2 to 4.1 I had a trouble with 3194 error.
     
  14. Intell macrumors P6

    Intell

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    #14
    Correct. The only firmware you can restore/update to as of now is 4.2.1.
     
  15. DifferentialApp macrumors regular

    Joined:
    May 14, 2010
    #15
    I am not too sure, but if you get the file for 4.1, you can press alt restore. Then it will let you choose a file to restore the iPhone to.

    I am pretty sure this works.
     
  16. Intell macrumors P6

    Intell

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    #16
    It only works in the SHSH blobs for the firmware is saved or available from Apple. The OP doesn't have the ones for 4.1 and Apple isn't signing them anymore. So s/he cannot go to 4.1.
     
  17. Consultant macrumors G5

    Consultant

    Joined:
    Jun 27, 2007
    #17
    NO, NOPE, and NO.
     
  18. lewy thread starter macrumors regular

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    Nov 6, 2010
    #18
    I wanted to that, but Apple doesn't allow do that anymore :(.
     
  19. vachargerfan macrumors regular

    Joined:
    May 28, 2008
    #19
    Nope. You have to have the SSH files saved. If you haven't saved them before you can't go back. Apple stopped signing the 4.1 firmware
     
  20. lewy thread starter macrumors regular

    Joined:
    Nov 6, 2010
    #20
    So now I have to wait for the next iOS, because this one really sucks. It is much slower than 4.1...
     

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