How to set the input method on Coolpad Master f2? What should I do if I only have a cursor and no keyboard when writing a text message?

Open the language and input options in the system settings and click to select the third-party input method by default.

Open Cool Butler, click the Cleanup Acceleration option, there is a settings button in the upper right corner of this interface, click this button to select, click the Memory Acceleration Whitelist option, at the bottom of this interface, there is an Add Whitelist option. List button, click this button, find the icon of the third-party input method in the personal application, and click Add to complete.