[Notebook] Troubleshooting - Keyboard backlight problems

Try performing an EC (Embedded Controller) reset, RTC (Real-Time Clock) reset, or a hard reset to restore hardware to default settings and resolve keyboard backlight issues.

Refer to this article for detailed steps: How to Reset the Embedded Controller (EC), Real-Time Clock (RTC), and Perform a Hard Reset.

If the issue persists after performing the CMOS clear (EC reset), proceed to the next troubleshooting step.

1. Access the BIOS setup screen on the device. 
   When the device is not powered on, press and hold the [F2] key on the keyboard, then press the power button to turn on the device. Keep holding the [F2] key until the BIOS setup screen appears, then release the [F2] key. Learn more about How to enter the BIOS setup screen.
2. Once in the BIOS setup screen, please refer to the following articles to understand how to restore BIOS settings: How to restore BIOS settings.
3. When reset the BIOS settings is completed, the computer will restart and enter Windows. Please check the problem again. If the problem persists, please continue the next troubleshooting step.

Regularly updating BIOS, Windows, and drivers can enhance system stability and performance. Ensure that your device is using the latest versions. Learn more about updating BIOS: 
How to update the BIOS version in Windows system  
How to use EZ Flash to update the BIOS version  
Learn more about updating Windows and drivers: 
How to execute Windows Update 
How to update drivers via System Update in MyASUS 
If the problem persists after you have updated BIOS/Windows packages/drivers to the date, proceed to the next troubleshooting step.

1. Type and search [Device Manager] in the Windows search bar①, then click [Open]②. (The left-side search illustration below is in Windows 11, and the right-side is Windows 10.) 
   
2. Uninstall ASUS System Control Interface drivers. Check the arrow next to [System devices]③, then right-click [ASUS System Control Interface]④ and click [Uninstall device]⑤. 
   
3. Check the box to [Attempt to remove the driver for this device]⑥, then click [Uninstall]⑦. 
   
4. Upon completion of the uninstallation process, please refer to this article to learn How to download and install the ASUS System Control Interface driver.
5. If the problem persists after installing the driver, please continue the next troubleshooting step.

If you encounter issues while adjusting the keyboard backlight using the MyASUS or Armoury Crate applications, it is recommended to uninstall and then reinstall the applications to verify if the issue is resolved. Learn more about How to uninstall applications.

• How to Install the MyASUS Application
• How to Install the Armoury Crate Application

If the issue started recently and you have previously created a system restore point or if the system has created an automatic restore point, you can try restoring the system to a point in time before the issue occurred. Learn more about How to restore the system from a created system restore point.

If all troubleshooting steps have been completed but the issue persists, back up your personal files and perform a system restore to return your computer to its original configuration. Learn more: How to Restore (Reinstall) the System.