The mobile phone can't receive the message.

1. The mobile phone has been working normally before, and suddenly I can't receive the message. What should I do? A: 1) Check whether the SMS box is full? It is suggested to clear the read SMS; 2) Reinstall the mobile phone card after taking it out, and pay attention to the information reception again. 2. Does the mobile phone that can't receive information have some functions of intercepting information? Answer: 1) Check whether the mobile phone is equipped with software such as SMS firewall or mobile phone security guard to intercept information reception, and if there is any suggestion, turn it off or cancel it; 2) Whether the mobile phone is blacklisted when receiving information, and only receives short messages of mobile phone numbers, etc. If yes, it is suggested to delete it. 3. What if the dual-card dual-standby mobile phone can't receive SMS? Answer: It is recommended to change the location of the dual-card dual-standby mobile phone, and check whether the mobile phone has some interception functions (the same as 2 if the processing method is set). 4. Does the mobile phone support sending messages with long numbers? For example, the currently known port numbers of mobile phones such as Changhong, old-fashioned non-color screens and old-fashioned cottage machines are generally 1 1. Because the port number of school newsletter is longer, it is generally greater than 15, so users are advised to set it to more than 20 digits. Changhong mobile phone can be set through two functions: (1) SMS firewall-number length setting-setting 20 digits; (2) Menu-Business Center-Number Length Setting-Set 20 digits. 5. What should I do if I still can't receive the news of the school newsletter after all the above processing? Answer: It is suggested to restore the factory settings of the mobile phone (the initial password is generally 12345) or the smart phone can reformat the mobile phone system, especially the parallel mobile phone is pre-installed with some rogue software, which is not convenient to delete. However, it is recommended to back up important information such as phone cards before restoring or formatting the mobile phone to prevent it from being lost. Remarks: The function of SMS firewall is: when receiving a new SMS, the software automatically turns on the filtering function to judge the source and content of the SMS. If it comes from a number that the mobile phone owner doesn't want to receive, or contains the filtering content preset by the mobile phone owner, the software will automatically delete the short message and stop ringing. If users add the school newsletter port number to the junk number, they will not receive the information sent by the teacher. In this case, users can be advised to turn off the SMS firewall or restore the factory settings.