The short message shows that the other party can't receive the short message content, such as "hello", and the other party can't receive it.

1. Troubleshooting can be done in the following ways:

1 The other party's number is currently in an abnormal opening state, such as shutdown, loss reporting, etc. It is recommended to open the number and try again.

2. If the mobile phone puts the short message into the trash can, or the mobile phone security software intercepts the short message, you can look for it in the short message trash can first or the software has intercepted it;

3. Because there are many users, sending short messages is slow, so you can try again later.

4. The mobile phone receives short messages abnormally, so it is recommended to change the mobile phone for detection.

2. If this is not the case, it is recommended to contact the manual customer service to verify the handling, depending on the actual situation.