China Mobile can't send short messages.

If the mobile phone can't send and receive short messages normally, please cooperate with the test and troubleshoot one by one according to the following steps: 1) Please take out the mobile phone card and put it into another mobile phone that can send and receive short messages normally for testing. If you can send and receive SMS normally after the test, you can check whether the SMS settings of the original mobile phone are correct according to the mobile phone manual. 2) Please put another mobile phone card that can send and receive SMS normally into your mobile phone for testing. If you can send and receive SMS normally, you can go to the business hall to check and replace the SIM card. If you still can't send and receive SMS normally after the above tests, you can contact 10086 manually, subject to the real-time consultation of 10086.