Why can't Samsung C9 receive SMS when making a phone call?

If the mobile phone can't receive long messages, I suggest you follow the following methods: 1. Edit a long short message on your mobile phone and try to send it to yourself. 2. Try to change another SIM card to receive SMS. 3. Back up the data in the mobile phone (contacts, text messages, pictures, etc.). ), and then try to restore the factory settings. If all the above methods are ineffective, there may be something wrong with the internal program. I suggest you take the three-guarantee certificate of your mobile phone and send it to the nearest Samsung service center for engineers to check the machine. Customer service 4 1 will answer your questions. Broadband service can self-help troubleshooting, which is simple and easy to operate. In addition, you can also handle work order inquiry, ITV troubleshooting, broadband application and password service, which is convenient and fast. For more functions, please pay attention to China Telecom's Guizhou customer service.