What should I do if my SIM card doesn’t work?

What should I do if my SIM card doesn’t work?

If your SIM is not working, the first thing to do is see what the cell phone says. If you see a message like “SIM error,” “Insert SIM,” SIM not ready” or something similar, try taking the SIM out then put it back in and power up your phone. Typically the SIM is underneath the battery or in the side of your phone, but it’s best to check with your cell phone manufacturer for instructions.

In most cases, the phone has just lost its connection with the SIM (maybe because the phone was dropped) and reinserting the SIM will solve the problem.

If your phone has gotten wet, let your phone dry out before you start it.  The SIM itself will not be damaged by liquid; it also resists shocks and a high range of temperatures.

If reinserting the SIM does not solve the problem, go to your wireless service provider to get a new SIM.

Got any further questions or comments? Let us know below or by tweeting to us at @JustAskGemalto.

  • Jade Ryan

    i bought a new smart sim card, loaded 80 pesos then made UCT50, i used twice call after that if i call again it will directly appeared call ended even text messages cant send. Text and call can’t also receive. Why?

  • Beverley Williams

    Hi, my SIM card, is not working, I live in Australia, I am currently traveling in the United States of America, do I need a new phone?

    • JustAskGemalto

      You might need to activate roaming with your network back in Australia. Try and give them a call. Otherwise, you could by a pay as you go SIM while in the States and have a US number for your trip.