Samsung s4 mobile phone has not received SMS recently.

1. Restart the phone to see if there is a signal problem.

2. Try to replace another SIM card.

3. Check whether the mobile phone is equipped with security guards or third-party SMS software, and test it after unloading.

4. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ) and restore the factory settings.

If the above method still fails, please send the equipment to Samsung Service Center, and the engineer will check the machine and deal with it.