Can I just "Update" to official 4.2.1 over my existing 4.0 JB?

Discussion in 'Jailbreaks and iOS Hacks' started by SirDarren, Nov 27, 2010.

  1. SirDarren macrumors member

    Joined:
    Sep 10, 2009
    #1
    I've got a 3GS running a 4.0 JB, however it's starting to get a little slow and I want to update to 4.2 since Find My iPhone is now free, and the only reason I have for JB anymore is SBSettings but I'm sure I could live without that.

    So can I just update to 4.2.1 in iTunes, or do I need to "restore" first and then update?

    Thanks for any help! :)
     
  2. MikePA macrumors 68020

    MikePA

    Joined:
    Aug 17, 2008
    #2
    Yes.
     
  3. SirDarren thread starter macrumors member

    Joined:
    Sep 10, 2009
    #3
    Thank you.
     
  4. phillipsteak macrumors member

    Joined:
    Mar 28, 2008
    #4
    find my iphone isnt free for iphone 3gs, only for iphone 4, ipod touch 4th gen and ipads
     
  5. California King macrumors 65816

    Joined:
    Sep 20, 2007
    #5
    lol, poor guy, I hope he read this before upgrading :D
     
  6. Maverick1337 macrumors 65816

    Maverick1337

    Joined:
    Nov 4, 2008
    #6
    ROFL, I can't wait until he comes back onto the forums asking why Find My iPhone doesn't work for 3GS.
     
  7. SirDarren thread starter macrumors member

    Joined:
    Sep 10, 2009
    #7
    Actually, yes it is free. :rolleyes:

    If you read the footnote on this page you'll find you only need to create the account on a newest generation device, then you can use it on any other device running 4.2.

    I created my account on an iPhone 4 and right now I have free Find My iPhone on my 3GS! ;)
     

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