hi in Catalina this was no problem I could change the info plist for backlight and have full brightness quadro k3100m but in Big Sur this is a pain for me why Big Sur no matter what I try won't let me unlock info plist to change the file.i install Big Sur from here. The latest release of the patcher https://github.com/BenSova/Patched-Su... make sure you’re running v.0.3 and download the other file too.