I have the Redragon kumara 522 rgb keyboard. My Nr. three key stopped working a few months ago. It works when I'm unlocking my computer and for a few seconds after. It also works if I use shift #. I have also tried finding the software for the keyboard but the one that seems to work for most people (https://www.redragonzone.com/pages/download) doesn't work for me, it says "Device is not detected, the key settings can not be displayed.