What should I do if I can't get the message?

I suggest you first check whether there is a blacklist in the mobile phone housekeeper.

Check third-party applications

Check whether there are any third-party applications that intercept SMS messages. For example, some security management applications filter incoming short messages.

Try the SIM card.

Try whether the SIM card can receive short messages normally in other similar brands of mobile phones, and confirm that the SIM card is normal.

Restore factory settings

After backing up the data, restore the factory settings to see if it can be received.

Pay attention to broadcast congestion

Some mobile phone security software will be blocked even if you can't see the blocking settings, and some mobile phone software will block the system broadcast, such as "lazy reading" and "menstrual assistant". In both cases, you can back up the software to the SD card, and then restore the factory settings (the third-party software will not work without inserting the SD card) for inspection.