MT1300 using wrong country code

It appears Luci doesn’t allow for the changing of the country code and the router is broadcasting as CN which causes issues with the 2.4g band. Not familiar with SSH process and would appreciate some guidance.

about ssh SSH to the Router - GL.iNet Docs

about modifying files using winscp Modify files on the router - GL.iNet Docs

about MT1300 region and country code How do I change my country code on the GL-MT1300