Instructions on how to enter BIOS mode.
3.7 BIOS MODE
Bios mode on the keyboard allows the keyboard to enumerate properly in the BIOS of legacy motherboards
BIOS Mode is triggered by simultaneous press of (DEL, END, PG DN) whilst plugging the keyboard into a USB.
When BIOS mode is active, the (DEL, END, PG DN) key should PULSE at 50% speed in RGB 0,0,0 WHITE. This will override the current lighting mode for these keys only.
The other keys will not be affected and the current profile's lighting mode will continue to be active.