https://support.logi.com/hc/en-us/community/posts/360037026053-k380-use-all-f1-f2-etc-keys-as-standard-function-keys- https://www.radishlogic.com/tools/how-to-reverse-the-f-keys-of-logitech-k380-keyboard/ Linux https://askubuntu.com/questions/699138/logitech-k380-bluetooth-keyboard-make-function-keys-default https://www.radishlogic.com/tools/how-to-reverse-the-f-keys-of-logitech-k380-keyboard/ Turn on the device and read dmesg: