What happened to some SMS messages from Apple 5s?

It's a cell phone signal problem, or because the cell phone is in arrears and can't receive the short message, you should be able to receive it by restoring the cell phone network settings.

Solution:

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

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.

To restore mobile phone network settings:

1, open the settings.

2. Click General.

3. Select Restore Network Settings.