Why can't this card receive any phone calls and text messages?

There are generally four situations in which "SIM card error" or "SIM card error" is displayed on the screen of a mobile phone:

1. Your location is blind or there is no signal suddenly;

2. This prompt is caused by poor contact between the metal contact of the mobile phone card and the mobile phone. I suggest you try another mobile phone.

3. If this phenomenon occurs on other mobile phones, it may be a SIM card problem. I suggest you take your mobile phone card to the business hall for testing.

4. The mobile phone card number has been cancelled or roaming but roaming function is not enabled.

The mobile phone can't receive any incoming calls or messages. It is recommended that you can detect them in the following ways:

1. Please confirm whether your mobile phone is set to airplane mode;

2. You can go to a place with a good signal and restart the machine;

You can try a new card on your mobile phone. If it works, I suggest you go to the business hall to test it. If not, it may be caused by the mobile phone system. You can go to the mobile phone repair point to check your mobile phone.

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