My mobile phone Samsung can't watch it after receiving the text message

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.