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  1. Thread AuthorThread Author   #1  
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    Default sim failure

    My phone had a message on it prompting me to update, this I did and now it says my sim card is invalid.
    Any ideas why? please advise
  2. #2  
    Jaguarr40's Avatar
    iMore Genius

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    Default Re: sim failure

    Turn off your phone. Remove your sim card and reseat it. Turn your phone back on and see if that cures it.

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