1, it may be that the mobile phone is in arrears, and you can't receive SMS after the mobile phone is in arrears, so it is the key to check whether the mobile phone is down first.
2. It may have been intercepted by harassment. You can also view the interception information of short messages.
3. It may be that the SMS is full. This is because the short message storage capacity of mobile phones is also limited. If the user doesn't clean up the received SMS in time, resulting in too much information on the mobile phone, there will be cases where the subsequent SMS can't be received. It is recommended to delete the message and try again.