1. ragcchunt's Avatar
    I have a cingular bb pearl 8100 that is unlocked and I can't use an att sim card


    HOW CAN I FIX THIS? IS IT POSSIBLE? It says invalid sim but a t mobile sim worked for it
    08-04-09 07:15 PM
  2. CARTEEUSMC's Avatar
    is your sim card activated? i have about 5 sims for att, they do not work and i get that same thing. suggestion, well my two cents, is go to the att store and get a new sim? and it some cases, Some, you have to get the new sim card that says 3g and att, if your sim card is a white one thats says cingular, or 16 or 24 on it, i would try that.
    08-04-09 07:19 PM
  3. Garz's Avatar
    I have a cingular bb pearl 8100 that is unlocked and I can't use an att sim card


    HOW CAN I FIX THIS? IS IT POSSIBLE? It says invalid sim but a t mobile sim worked for it
    Yes I would check with Att to see if the SIM is good. Unlocking has nothing to do with it. Even if it wasnt unlocked, it should still work since Cingular and Att is the same.
    08-04-09 07:38 PM
  4. ragcchunt's Avatar
    MY Sim is mine and yes it is activated
    08-05-09 10:13 PM
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