Downgrading first generation iphone

Discussion in 'Jailbreaks and iOS Hacks' started by iKrl, May 30, 2010.

  1. iKrl macrumors regular

    Joined:
    Jun 2, 2009
    #1
    I was looking at the story of the iPhone OS and thought to myself that it would be cool to compare the current 3.1.3 on the 3GS with the first generation iPhone (bought it on March 2008 so firmware was like 1.1.3). What I wanted to do was to downgrade my iPhone 1st gen to 1.0 but already tried restoring it to that firmware with no luck. It is now on the 3.1.3 and I don't know how to downgrade it all the way to the first version of the iPhone OS.
    Does anyone have any ideas?
     
  2. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #2
    You would have to first find the firmware file, then put your iPhone into DFU mode, then while holding down shift on Windows or option on Mac, click the restore button for your iPhone, and select the 1.0 firmware.
     
  3. iKrl thread starter macrumors regular

    Joined:
    Jun 2, 2009
    #3
    I tried that and when I click on the 1.0 firmware it says "extracting software" and suddenly it says it couldn't do it with (20) as the error.
    Do you think it has to do with when I bought the iPhone? Like I said it was late march 2008 and the box had the iTunes icon on it already.
     
  4. sysiphus macrumors 6502a

    sysiphus

    Joined:
    May 7, 2006
    #4
    The issue is that the baseband was also flashed, and you can't install a firmware older than the corresponding baseband (easily/effectively).
     
  5. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #5
    This is just a guess but did you try an older version of iTunes? And are you sure that you're in DFU mode?

    Can't you downgrade the iPhone Gen 1's baseband with BootNuter if you have the needed files by using PwnageTool?

    Edit: I would now suggest try using PwnageTool to create a custom firmware with 2.x and flashing the baseband back to the 3.9 version. Then try downgrading back to 1.0.
     
  6. iKrl thread starter macrumors regular

    Joined:
    Jun 2, 2009
    #6
    Just to clarify, do I need to hack the iPhone to a much older version, say 1.1.4 or something and download these things to downgrade to an older baseband which would then let me downgrade to version 1.0?

    O and by the way I tried using iTunes version 7.3.2 (oldest I could get which would work with the iPhone) and nothing happened, well actually the same thing happened, it said it couldn't do it because of (-50) the first time, then it was because of (20).
     
  7. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #7
    I doubt it will work.
    The baseband and firmare won't match and will not let you restore to 3 year old firmware.
     
  8. hexonxonx macrumors 601

    Joined:
    Jul 4, 2007
    Location:
    Denver Colorado
    #8
    The earliest firmware that I can downgrade my original iPhone to is 2.2.1. I downgraded from 3.1.3 just today.
     
  9. iKrl thread starter macrumors regular

    Joined:
    Jun 2, 2009
    #9
    can't you just downgrade the baseband as well? it is a first gen iphone so I don't see why it can't work with something it worked with a long time ago
     
  10. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #10
    Not sure if you can downgrade it and with what tool.
    Bootneuter flashes it and unlocks it but doesnt downgrade it to the old 1.0+ days.
    I dont know if its worth your time and trouble to get this done. You will have to jump thru many many hoops and still it prob wont work.
     
  11. rickstermar555 macrumors newbie

    Joined:
    Jun 6, 2011
    #11
    Hello Everyone,

    I 'm using an original 8GB IPhone (1st generation) as an Ipod Touch. I figured why not try to update it to the new OS.
    Now I'm stuck with the "Connect to Itunes" logo. It won't go to the HOME screen. I am able to make an emergency call. My PC won't detect the phone either.

    I tried calling Apple Support, but they would charge me $29.99 just to talk to them.

    How do I restore my old Iphone to the previous OS if I can't go to the HOME screen?

    What is the latest OS that I would need to download to be compatible with my 1st generation phone? WIll I need to download an older version of Itunes as well?

    What kind of 3rd party software is needed as well if I need it?

    Thank you.
     
  12. Ke1ington macrumors 6502a

    Ke1ington

    Joined:
    Dec 29, 2009
    #12
    How is this done??
     

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