Keyboard Backlight Function Keys

HI, is my first time here, i bought the software looking a solution with my problems. I have a macbook air 2015 (A1466), but since a few weeks the function keys of my keyboard stopped working the function of this keys, not is a software problem, i don't know why but i think is a hardware problem directly in the mainboard. I read in a forum about of this software and how i could make the correctly functionality of the function keys. Well, i could do function the all the function key except, the backlight keyboard, i can't find how to make it work.

Is this why i created this topic, and i wish your help to find a solution with this.


The Simulate Hardware Key action can simulate the various keyboard illumination keys, including toggling the illumination on and off.