Huawei HONOR's own SMS software was uninstalled by me, and then when I came to SMS, there was a message but I couldn't read it clearly.

You can try to install go SMS. I killed the system itself and installed this. It's the same. It may ask you if you killed the built-in SMS module, and then your answer is yes, it will replace those functions. Besides, I suspect that you have completely deleted it. You have a hint when you come to text. Who gave the hint, Youni or the system? If it is given by the system, it means that there is still a process in the system to manage SMS reception, but anyway.