After clicking "Login", the login form will pop up, enter Xiaomi account id and Xiaomi password in the text box, and then click "Login Now" to log in Xiaomi account.
After logging in successfully, select "Xiaomi Account" in the personal information in the upper right corner. After entering the Xiaomi account, you can quickly modify the Xiaomi account name.
Click Change after Name, then enter a new name in the New Name text box on the new page, and then click OK to save the changes.
After successfully modifying the name, you will be prompted that the modification is successful, and then you will automatically jump to the Xiaomi account center. You can see that your name has changed.