Front LED to bright


I have a KM8 Pro 912 box which has a bright blue LED on the front when the unit is on. i.e. when playing a movie.

I can just put some tape on it but I was wondering if there is any software control to DIM it or turn it off?

Same problem here using a Tanix TX5 Pro, some say to look under /sys/class/leds but its empty.