Excuse me, what is the reason why the short messages sent to me by China Unicom always have no content?

Unicom's mobile phone can't receive SMS normally for the following reasons:

1, the other party may have sent a blank message;

You can check whether the mailbox is full first. If yes, please delete some information.

3. If you still can't get it after deleting it, you can change the machine or card to see if it is a hardware factor.

After eliminating the above reasons, you can try to test whether it can be received in other places to see if it is the reason for the weak local signal.