My Keyboard Backlighting not working at all

Hello haithanh079,

Thanks for asking the Apple Support Communities for help with your keyboard backlighting.

Please verify your Mac model. These articles will help:

Identify your MacBook Pro model - Apple Support

Identify your MacBook Air model - Apple Support

I need to verify your model because from the picture, it looks like your model may not have a backlight keyboard. The 2018 MacBook Pro has the backlight keyboard, but the 2018 MacBook Air does not have this feature. This article states: Adjust the brightness of your backlit keyboard - Apple Support

"Find out if your notebook has a backlit keyboard - From the Apple () menu, choose System Preferences and then click on Keyboard. If the Keyboard preferences window has an "Adjust keyboard brightness in low light" checkbox, you have a backlit keyboard."

If your model does have it, you should be able to use the options here to adjust the brightness: Turn your Mac keyboard’s backlighting on or off - Apple Support

Thanks and have a wonderful day.

Hello haithanh079,

Thanks for verifying the info and troubleshooting. I recommend contacting AppleCare for more assistance with this, and if necessary, your repair options.

Use this link to contact AppleCare: Contact - Official Apple Support

If you do need to get your device repaired, please make a backup before the computer goes in: Back up your Mac with Time Machine - Apple Support

Check this help article under the bottom section titled "Get ready for service" for other items to ensure you are prepared: Mac Service and Repair - Apple Support

"Get ready for service

Before you return your Mac to us, be sure to enable FileVault and back up your data. You may need the backup if your Mac needs to be reformatted during the repair process. Apple isn't responsible for lost data.

Read the Apple privacy policy"

Thanks and have a wonderful day.