By default the unit comes in DCSBIOS Mode. If you are not familiar with DCSBIOS please check out the following link
The repository to use is https://github.com/tekcreations/TekF18
The unit will flash and then function as a USB HID Joystick Controller. Please note, this may not appear in Game Controllers, but this will work perfectly fine for any game and will require mapping to be done in most games.
If you wish to switch back to DCSBIOS Mode this can be achieved by pushing the Com 2 Encoder button (Bottom Right) and pushing 1.
The unit will flash and then function through DCSBIOS.
There is also a Harrier Mode for units with Displays, this is accessed by Com 2 encoder button and 3. This maps the displays to the Harrier Outputs, but makes the Buttons and toggles a HID device so you can map them in game as you see fit.
The Backlit Brightness is controlled by the Consoles Rotary. In HID Mode, the brightness is controlled by the BRT Potentiometer, and when you push the Comm 2 Rotary Encoder it adjusts the brightness.