is the iphone 3g compatible with any AT&T sim

Discussion in 'iPhone Tips, Help and Troubleshooting' started by iPhone3GHunt, Sep 11, 2008.

  1. iPhone3GHunt macrumors member

    Joined:
    Sep 6, 2008
    #1
    is the iphone 3g compatible with any AT&T sim
     
  2. TEG macrumors 604

    TEG

    Joined:
    Jan 21, 2002
    Location:
    Langley, Washington
    #2
    AFAIK, it will work with any SIM that has a data plan. I say that because you can't use a SIM until activate by iTunes, but some BB users can use their old SIM in the iPhone. However, you can only get 3G speeds from a SIM that is 3G capable.

    TEG
     
  3. iPhone3GHunt thread starter macrumors member

    Joined:
    Sep 6, 2008
    #3
    I have a 3G sim. but it has no data plan, would I have to unlock the iphone?
     
  4. iPhone3GHunt thread starter macrumors member

    Joined:
    Sep 6, 2008

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