How can I configure the ASUS keyboard backlight, and what should I do if it stops working?

On most ASUS laptops, the keyboard backlight is controlled using Fn + Up/Down Arrow, Fn + F3/F4, or a dedicated backlight key—depending on the model. These keys adjust brightness and lighting modes.

For more advanced customization, ASUS provides the Armoury Crate utility (on gaming models) or MyASUS. These apps allow you to select lighting effects (breathing, static, wave), sync the keyboard backlight with other ASUS Aura Sync devices, and adjust brightness and behavior when running on battery power.

If the backlight stops working:

Check whether the backlight is enabled — the system may have reset the settings.

Make sure ASUS System Control Interface is installed; without it, the backlight will not respond to key commands.

Update Armoury Crate or MyASUS, as outdated versions often cause issues.

Disable Fast Startup in Windows — it can block backlight drivers.

Fully restart the laptop using Restart (not Shut down).

If the backlight does not work even in the BIOS, the issue is likely hardware-related, such as a damaged keyboard ribbon cable or backlight controller. In this case, professional diagnostics are required.

Proper software configuration and checking the correct key combinations usually restores the keyboard backlight quickly.