1. AC Question's Avatar
    My galazy grand prime has been working fine for some months.. Then today it said invalid SIM card..straight talk says I have to wait til a Sim card comes in the mail.. Or either purchase one for $60 at Walmart... Is there anything else I can do..I purchased the phone from Walmart
    06-23-2016 11:25 PM
  2. B. Diddy's Avatar
    Welcome to Android Central! SIM cards, just like any other bit of hardware, can fail unexpectedly. Can you test out a different SIM card temporarily (like one from a friend's phone)?
    Laura Knotek likes this.
    06-26-2016 01:03 PM

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