Why can't my mobile phone send and receive text messages?

Hello, you can put your mobile phone SIM card in another mobile phone for testing. If you can send and receive SMS normally in another mobile phone, there may be something wrong with your mobile phone settings. I suggest you check whether the setting of "SMS Center Number" in your SMS settings is correct. If you are a customer in Jiangsu, the number of the SMS center should be set to +86 13800ABC500 (where ABC is the long-distance area code of each region, Nanjing is 250, Wuxi is 5 10, Zhenjiang is 51,and Suzhou is 5 12). Yancheng: If your SIM card can't send and receive short messages on other mobile phones, you can call 10086 or go to the business hall to check whether your short message function is abnormal. For your reference, thank you for using China Mobile Communication.