How to update to iOS4 with GM installed?

Discussion in 'iPhone Tips, Help and Troubleshooting' started by saucy1360, Jun 21, 2010.

  1. macrumors regular

    Joined:
    Jun 15, 2010
    #1
    Sorry if this has been covered already, but I've had the GM for a few days and I'm wondering how to upgrade to the public release of iOS4... iTunes says there's no updates available. Can someone give me a quick step by step? I don't want to do anything unnecessary/anything to screw up my phone.
     
  2. macrumors 6502a

    Joined:
    Jun 20, 2010
    #2
    It is the same build and you cannot update, as you already have the latest one

    The only thing that is different is Game Center is gone. But everything else is there.
     
  3. macrumors member

    Joined:
    Jul 12, 2006
  4. macrumors 68040

    VSMacOne

    Joined:
    Oct 18, 2008
    #4
    Download the file from one of the links posted here http://gizmodo.com/5568558/download-iphone-ios4-now and then once you have it, go to iTunes and on the iPhone screen do Option+Click the Update button and you'll be able to select the downloaded file.
    I updated from the GM to the general release today, just to make sure there were no bugs.
     
  5. thread starter macrumors regular

    Joined:
    Jun 15, 2010
    #5
    thank you!

    do i need to do a restore though? just wondering how long it will take...
     
  6. macrumors 6502a

    Joined:
    Jun 20, 2010
    #6
    You should always backup just in case if the upgrade doesn't restore your stuff.

    I forced mine to update using the way VSMacOne said above and I didn't have to restore. But when I updated to GM I lost everything and had to restore it.

    So just to be safe... backup and restore if needed
     
  7. macrumors regular

    Fast/Furious

    Joined:
    Oct 18, 2008
    Location:
    Vancouver, BC
    #7
    It stands for "Gold Master" release. The GM seed is basically the beta of iOS4 that is closest to production quality. In the case of iOS4, the GM seed and the "Official" release has the exact same build number - essentially it is the same version give or take a few features.
     
  8. macrumors 68040

    VSMacOne

    Joined:
    Oct 18, 2008
    #8
    No restore. Just upgrade. Painless and SHORT!
     
  9. macrumors demi-god

    Gav2k

    Joined:
    Jul 24, 2009
    #9
    The build number was the same they are however different files!

    Easiest way to force it if clicking restore throws an error is to do a dfu restore.
     
  10. thread starter macrumors regular

    Joined:
    Jun 15, 2010
    #10
    nice, thanks a lot.
     
  11. macrumors 68040

    VSMacOne

    Joined:
    Oct 18, 2008
    #11
    Do let us know how it went for you :) good luck!
     
  12. thread starter macrumors regular

    Joined:
    Jun 15, 2010
    #12
    damn, that was about five times faster than updating to the GM. thanks. :)
     
  13. macrumors 65816

    Joined:
    Oct 18, 2008
    #13
    Once you update do you still have to restore?
     
  14. macrumors 6502a

    Joined:
    Jun 20, 2010
    #14
    No need to restore if all your stuff is there.

    But if you are missing your things then you should restore.
     
  15. macrumors 65816

    Joined:
    Oct 18, 2008
    #15
    Tried to update but it says that the firmware is incompatible
     
  16. macrumors 6502a

    Joined:
    Jun 20, 2010
    #16
  17. macrumors 65816

    Joined:
    Oct 18, 2008
    #17
    what had happened is I deleted the GM version and so now I'm downloading the final public version.
     

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