current AT&T sim into unactivated iPhone?

Discussion in 'iPhone Tips, Help and Troubleshooting' started by California, Sep 5, 2007.

  1. California macrumors 68040

    California

    Joined:
    Aug 21, 2004
    #1
    With the big price drop -- thanks Steve -- can I drop my three year old AT&T sim card from my Sony Ericsson t637 into a new unactivated iPHone?

    What would happen if I did that? Would I just stay on my current phone plan?

    Thanks!
     
  2. unity macrumors 6502a

    Joined:
    Sep 30, 2005
    Location:
    Green Bay, WI
    #2
    It wont work. I happen to have a 637 (best phone ever) and that sim will not work in mine and it will also not let me activate it with it.
     
  3. California thread starter macrumors 68040

    California

    Joined:
    Aug 21, 2004
    #3
     
  4. ImAlwaysRight macrumors 6502a

    ImAlwaysRight

    Joined:
    Jul 10, 2002
    Location:
    Always in the right place at the right time
    #4
    Hmmm ... I wouldn't say better than the iPhone. ;)

    Thanks for the report. I had a T637 on a 3-yr old AT&T plan that I upgraded to an Cingular unlocked (w/iTunes) SLVR and was also seriously thinking about getting the iPhone. But since my simm card won't work I'll just have to pass. :(

    I even read a hack site but it sounded my simm card was incompatible with the hack. I've got a killer rate plan from when AT&T became Cingular and am just to cheap to upgrade it, even for an iPhone. I calculated it would cost me $50 more per month to upgrade to an iPhone compatible plan.
     
  5. unity macrumors 6502a

    Joined:
    Sep 30, 2005
    Location:
    Green Bay, WI
    #5
    It is policy to replace you SIM card at least once a year for free. I think two a year may even be the limit.

    In short, microwave you sim card and take the phone into a store or dealer and have them replace it. You will get the newer 3G ATT Sim card. With that one you may be able to get it to work. I am not sure since I never tried the cracked activation method and I am not sure if this is the sim you need. I'm a contract activation.
     
  6. Nall macrumors regular

    Joined:
    Aug 15, 2003
    #6
    Isn't it just $20 extra/month if you're already a Cingular/AT&T customer? The few iPhone owners I know were already Cingular customers and went that route, even the guy who still has some voice plan that hasn't been offered in the years. :)
     

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