1. AC Question's Avatar
    Out of no where my phone says invalid sim I have not changed or mess with it to cause this problem what can I do to fix it?
    04-23-2016 02:18 AM
  2. Laura Knotek's Avatar
    Welcome to Android Central.

    Does your SIM work in another phone?

    Whenever I've had problems with my SIM, I've always asked my carrier for a new one. That fixed the issues for me.
    04-23-2016 02:23 AM

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