1. Hotspur's Avatar
    Please help

    when I place my 4yr old sim in my phone it says its the unapproved sim while the 3g sim tht came with the phone works BUT has no service AHHHH

    anyone knw how sim cards work?
    if i place the shiny gold part from my old phone in my 3gsim, would tht work?
    2008-01-21 05:41 PM
  2. My_Name_Is_Neo's Avatar
    Ask ATnT to give u a replacement sim for the old one. they will give you. might charge you, but its better to get a replacement from them.tell them you have a smartphone which is asking for a newer generation Sim Card.
    i'll suggest you not to fiddle with the chip on the sim. if you manage to scratch it even a little bit it'll not work after that.
    2008-01-21 06:32 PM
  3. Hotspur's Avatar
    does anyone knw if att iphones only work with the blue 3g sim cards?
    2008-01-21 07:00 PM
  4. JedixJarf's Avatar
    They work with cingy sims too.
    2008-01-21 07:28 PM
  5. center_99_99's Avatar
    The newer phones only work with sim cards that have the first four numbers 8901.

    Hope that helps
    2008-01-22 07:01 PM