What happens when you press the function keys combination to turn on keyboard backlight? Do you get any error message?
I would appreciate if you can provide us the following information to help us understand the issue better. You tried reinstalling the ATK hotkeys but the issue persists.
Thank you for visiting Microsoft Community.Īs per the issue description, I understand that keyboard backlight on your new Asus Zenbook ux51vz laptop is not working.