Are you sure you don't have a tiny switch on the side? The manual indicates it should have one -
https://www.keychron.com/pages/k4-user-manual
I do, but when on the windows mode the keys mentioned are in the wrong positions.
--
Edit and if i switch to the macOS mode. The right alt-gr key is not mapped correctly.
I do, but when on the windows mode the keys mentioned are in the wrong positions.
--
Edit and if i switch to the macOS mode. The right alt-gr key is not mapped correctly.