Samsung mobile phones can send messages, but can't receive them. What happened?

1. If a contact appears this phenomenon, it may be that there is something wrong with the other party's mobile phone. Suggest the other party to check the relevant settings of the mobile phone.

2. All contacts send messages with this phenomenon. I suggest you check whether the network signal is stable. You can restart your phone and try to change your location.

3. Check whether your firewall is set with rejection information. If you're sure there's nothing wrong with the phone itself, look in the settings to see if it's set incorrectly.

4. It may be poisoned, so that you can't receive the SMS from the operator, which consumes your phone bill.

5. See if it is blocked or there is not enough storage space.

6. Try to replace another SIM card.

7. Standby-Applications-Settings-Application Manager-All-Open Information-Clear Data Attempt.