Changing SIM cards on unlocked phone

Discussion in 'Jailbreaks and iOS Hacks' started by gene.sf, Feb 23, 2008.

  1. gene.sf macrumors newbie

    Joined:
    Feb 23, 2008
    #1
    I'm using a T-Mobile SIM card on 1.1.3 OTB iPhone which I unlocked. Just now I tried swapping in an AT&T SIM which is setup for a Pay-as-You-Go account. This SIM does work in another phone, but on the iPhone, I get a message that I need to add money when I try to place a call.

    I thought once the iPhone was unlocked, it was unlocked and would work with any SIM. Am I wrong, or is there some other reason this isn't working?

    Thanks!
     
  2. CD3660 macrumors 68040

    CD3660

    Joined:
    Jun 6, 2007
    Location:
    Cheshire, United Kingdom.
    #2
    Sounds like you just need some credit on the sim card and you should be able to make calls. :)
     
  3. gene.sf thread starter macrumors newbie

    Joined:
    Feb 23, 2008
    #3
    That's not it, it has credit -- it works on another phone and I checked the account online too.
     

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