Suddenly the mobile phone can't send and receive text messages. What could be the reason?

Can't send and receive SMS, need to check whether the SMS function is normal:

1, check whether the SMS center number is correct; Henan SMS center number+8613800371500;

2. Whether interception software is installed, which makes it impossible to receive short messages;

3. Whether sending a large number of short messages in the early stage caused the short message function to be abnormal.

If none of the above has solved your problem, you can contact the local staff as soon as possible to help you inquire.