1. Mark's Avatar
    Provider is straight talk
    01-19-2016 07:45 PM
  2. UJ95x's Avatar
    Welcome to AC!
    Has this been an issue for a while or is it recent? Have you gone to your provider and asked for a new SIM?
    01-19-2016 07:47 PM
  3. Logan Malone's Avatar
    I've done both of those, and even got my phone replaced by straight talk themselves. It still does it.
    03-10-2016 04:01 PM
  4. Hughes B's Avatar
    I also have a Straight Talk Samsung Galaxy Grand Prime and have had to replace the SIM card 3 times now... for no reason it keeps going out.. gives me a message ... Invalid SIM card... can any one explain to me why? and what can I do to fix this problem..
    08-24-2016 08:39 AM
  5. B. Diddy's Avatar
    Welcome to Android Central! It could be a problem with the phone's SIM reader. Since others have mentioned this issue, perhaps it's a known issue with that particular phone. Is it still under warranty? If so, contact Samsung.
    08-24-2016 01:10 PM
  6. Mack Mel's Avatar
    Why i get invalid sim card
    03-06-2017 11:22 PM

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