Updating old unlocked iphone

Discussion in 'iPhone Tips, Help and Troubleshooting' started by shinyhead, Dec 24, 2008.

  1. shinyhead macrumors newbie

    Dec 24, 2008
    I have an unlocked/jailbroken 1.0.2 iphone. I wanted to switch back to AT&T and upgrade to 2.2. So is it safe to reuse my AT&T sim card and then upgrade to 2.2 without "bricking" my phone?

    Thanks in advance!
  2. showtime macrumors 6502

    May 10, 2007
    Yup your phone won't brick. It might be a better idea to restore to 2.2 rather than upgrade to 2.2
  3. shinyhead thread starter macrumors newbie

    Dec 24, 2008
    thanks for the quick reply.

    so do you mean by restoring to 2.2 by using the restore feature in itunes and use the 2.2 firmware file?

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