1. I need help's Avatar
    I've had this for a few months and I have never took the sim card out or changed it so why one day out of the blue it says sum card unknown. I've tried shutting down the phone and back on and that didn't work. Then I tried taking the battery and sim card out and blowing everything off and that didn't work. Somebody help me out. Thanks
    12-15-2015 01:38 PM
  2. dpham00's Avatar
    I would try to get another sim card
    12-15-2015 01:42 PM

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