Hey all,
I also think that it was fcam.
When I updated it thru the ap manager, no more keybord lights.
Also, Fcam doesnt work at all, So I am looking to install the older app.
I have tried removing the app and drivers, still no lights, various reboots and the like.
Also, a reinstall of Fcam doesnt work and renders ALL cam apps usless

I will try this script, it will restore the keybord illumination ?