I used Xiaomi1s. Why can't I input Chinese characters because there is no pinyin input in the keyboard input method? What should I do?

Hello, do you have a third-party input method in your mobile phone? If not, please install one. I suggest you install sogou and Baidu. After the security is improved, please enter System Settings ~ Need and Input Method, select the input method you want to use, and then when typing outside the input method, the input method that comes with the system may appear. If you hold down the following English (USA), a window will appear to change the input method. Just click select.

Thank you for your support and wish you a happy life.