Quick clarification/question before updating 3G to OS 3.0?

Discussion in 'iPhone' started by talkin73, Jun 19, 2009.

  1. talkin73 macrumors newbie

    Dec 11, 2008
    Other than NOT being in Airplane Mode (several threads say this will cause problems), any other settings that need to be a certain way to avoid problems?

    Does my 3G need to have a data connection of it's own to be able to complete the upgrade (in other words, if I'm not in range of a cellular network... I can use wifi through Internet Sharing to "connect" to the internet) properly?

    If I have a legit copy of 2.2.1 firmware and I have a lot of problems after upgrading to 3.0 as some users are experiencing, can I easily reinstall (ie; downgrade) the 2.2.1 firmware and restore from a recent backup?

    Thanks for any info!
  2. iphoneftw macrumors 6502

    Jun 17, 2009
    i dont believe you need a data connection on the iphone im not sure though
    you can put your iphone into dfu mode and then install 2.2.1 if u dont like 3.0 but i dont understand why you wouldnt like it. you can restore from a recent backup on both 2.2.1 and 3.0

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