Can you downgrade from iOS 5 Beta 5?

Discussion in 'iPhone' started by iWannaBeAdored, Aug 22, 2011.

  1. iWannaBeAdored macrumors 6502

    iWannaBeAdored

    Joined:
    Apr 25, 2010
    Location:
    Scotland
    #1
    I have an appointment to see an Apple Genius tomorrow to fix my home button (you need to press it in really really really hard for it to work). I am on iOS 5 Beta 5 and I bought a slot from eBay so if they had to ask me any questions about the developer who has registered me, I'm screwed.

    Can I downgrade to iOS 4?
     
  2. Sedrick macrumors 68030

    Sedrick

    Joined:
    Nov 10, 2010
    #2
    Yes it can be done. Can you do it? Remains to be seen. I had to wipe my iPhone after uninstalling iTunes Beta and reinstalling iTunes 4 and pointing to the ispw I had downloaded.
     
  3. The DRis macrumors 6502

    Joined:
    Jun 19, 2010
    Location:
    Oceanside, CA
    #3
    Yes, download the latest IPSW 4.3.4 if AT&T. Put your iPhone into DFU mode, not recovery mode, DFU mode. Look up some videos on YouTube and they will show you how. Once it's in DFU mode you can select the IPSW and install it that way.
     
  4. Saberon macrumors 6502a

    Joined:
    Sep 16, 2008
    #4
    Small correction, it's 4.3.5 with AT&T. You must downgrade to the current 4.x firmware.

    4.3.3 will not work
    4.2.1 will not work

    It *must* be 4.3.5 or 4.2.10 with verizon
     
  5. iWannaBeAdored thread starter macrumors 6502

    iWannaBeAdored

    Joined:
    Apr 25, 2010
    Location:
    Scotland
    #5
    Thanks. I put my device into DFU mode. iTunes said I had to restore it, I clicked restore which would restore my device to 4.3.5. However, I get error 2005. When I Google the error code, it is a hardware issue. I've moved the sync cable into a different USB port but I still get the 2005 error.

    I'm on iTunes 10.4.1.
     
  6. transam7816 macrumors regular

    Joined:
    Mar 7, 2008
    #6
    man that sucks
     
  7. Saberon macrumors 6502a

    Joined:
    Sep 16, 2008
    #7
    Last time I was in DFU mode it didn't tell me I had to restore, perhaps you aren't in DFU mode?

    Also, have you ever used TinyUmbrella on your computer?

    Are you using a USB hub/expander/keyboard USB port? Are you plugging directly into your computer.
     
  8. iWannaBeAdored thread starter macrumors 6502

    iWannaBeAdored

    Joined:
    Apr 25, 2010
    Location:
    Scotland
    #8
    Plugged directly into my tower. I used TinyUmbrella on my iPad 2.

    When I run the TSS server, I get iTunes error 2005.

    When I do not run the TSS server, I get "The iPhone 'iPhone' cannot be restored at this time because the iPhone software update server could not be contacted or is temporarily unavailable."
     
  9. Saberon macrumors 6502a

    Joined:
    Sep 16, 2008
    #9
    Yup, that's what screwed it up. Your hosts file has been changed so that you can't contact apple normally. You don't need any special software to get into DFU mode.

    Do you have a mac or PC?
     
  10. iWannaBeAdored thread starter macrumors 6502

    iWannaBeAdored

    Joined:
    Apr 25, 2010
    Location:
    Scotland
    #10
    PC.

    Thanks for your help
     
  11. Saberon, Aug 22, 2011
    Last edited: Aug 22, 2011

    Saberon macrumors 6502a

    Joined:
    Sep 16, 2008
    #11
    Not sure how technologically savvy you are but I hope this makes sense.


    Navigate to C:\Windows\System32\drivers\etc

    Double click on file called hosts

    If it asks you which program to open with choose WordPad

    Remove any lines that say something like gs.apple.com

    hit save

    Reboot COmputer


    Plug in iPhone..DO NOT RUN anything like TSS/Tinyumbrella

    Put phone in DFU mode (http://osxdaily.com/2010/06/24/iphone-dfu-mode-explained-and-how-to-enter-dfu-mode-on-your-iphone/)

    HOld shift and click restore

    Locate the 4.3.5 firmware you downloaded

    (iPhone 4 4.3.5 http://appldnld.apple.com/iPhone4/041-1966.20110721.V3Ufe/iPhone3,1_4.3.5_8L1_Restore.ipsw)

    (iPhone 3GS 4.3.5 http://appldnld.apple.com/iPhone4/041-1965.20110721.gxUB5/iPhone2,1_4.3.5_8L1_Restore.ipsw)
     
  12. Kyotoma macrumors 68000

    Kyotoma

    Joined:
    Nov 11, 2010
    Location:
    Carnegie and Ontario
    #12
    iTunes should just download the correct firmware for you if you can't find it online as well.
     
  13. Saberon macrumors 6502a

    Joined:
    Sep 16, 2008
    #13
    That may be true but I'm giving him the instructions that I've used over and over with success. :cool:
     
  14. Kyotoma macrumors 68000

    Kyotoma

    Joined:
    Nov 11, 2010
    Location:
    Carnegie and Ontario
    #14
    Oh I know that method works as i have used it as well I was just pointing out that he could let iTunes download the ipsw for him if he wanted :cool:
     
  15. iWannaBeAdored thread starter macrumors 6502

    iWannaBeAdored

    Joined:
    Apr 25, 2010
    Location:
    Scotland
    #15
    Yeah I already had 4.3.5 on my desktop. Worked like a charm. Thank you very much. I'm actually an IT student! I've just not had to delete hosts or use TinyUmbrella in a good while!

    Am I able to restore from a backup created on iOS 5? I'm guessing not.

    Thanks for your help.
     
  16. Saberon macrumors 6502a

    Joined:
    Sep 16, 2008
    #16
    I fix computers for a living and spend 99% of my time dealing with people who don't know a thing about computers, so excuse me if I sounded like I was talking to an infant lol!

    So glad to hear you got it going! Very unlikely you can restore from iOS 5 backup.
     
  17. Kyotoma macrumors 68000

    Kyotoma

    Joined:
    Nov 11, 2010
    Location:
    Carnegie and Ontario
    #17
    I don't think so, but then again I've never tried.
     
  18. iWannaBeAdored thread starter macrumors 6502

    iWannaBeAdored

    Joined:
    Apr 25, 2010
    Location:
    Scotland
    #18
    That was fine, easy to follow if anyone else in my position reads this thread!

    Guess I'll give it a try.

    Update: Didn't work. Backup "too old" haha. Just using a different backup now. Cheers!
     
  19. TonyC28 macrumors 65816

    TonyC28

    Joined:
    Aug 15, 2009
    Location:
    USA
    #19
    I did this a few betas ago. I could be wrong, but I think the key is to have the most recent public version of iTunes when when you try to restore.
     

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