Why can't I see the content of the message when displaying and converting?

1. Your SMS memory is full, so you can only receive it but not display it (probably).

2, caused by software conflict.

3. The line for receiving short messages has changed, and there is a short message setting short message line.

4. Your mobile phone has some billing software installed. For example, when it charges, it will send a short message to the operator itself and analyze the content of the recovered short message to get the result. When it receives a short message, it will send out the sound of receiving the short message, but it can't see the short message.

5. It was intercepted by security software.