What's the matter that Xiaomi 3 can't receive the text message?

If the mobile phone can't receive the short message, make sure that the mobile phone card is read successfully. If there is nothing wrong with the mobile phone card, try to restart the phone and see if you can receive the text message.

How to distinguish whether the mobile phone card is inserted correctly;

The signal of the mobile phone card is displayed in the upper right corner of the mobile phone. If it is a step signal, there is nothing wrong with the mobile phone card. If it is an "X", it means that there is something wrong with the mobile phone card, and the SMS can't be received, which is not the problem of the mobile phone itself.

If there is something wrong with the phone itself:

If there is no problem with the mobile phone card and there is a phone bill, restart the phone first to see if you can receive the message. If you still can't get it, go to the nearby Xiaomi after-sales service center for inspection and maintenance.