SMC stands for System Management Controller and is a central piece of software on all MacBooks that allows you to reset certain parts of your system to their default settings. The first thing we can do, to attempt to reset the MacBook keyboard backlight, is to perform an SMC Reset. We want to start with the easiest and least costly methods - software solutions. If this still does not work, try the following potential solutions. The light sensor is located on the top bezel of the screen, as shown below:
You can test this by covering it up with your finger which should trigger the keyboard backlight, or by shining a flashlight into it which should turn off the keyboard backlight. When it senses too much light, it turns off the backlight and when it doesn't sense enough, it turns it on. This sensor is responsible for triggering the MacBook's keyboard backlight. Another option is to completely reboot your computer and try the above key combo.Īlso, you will want to ensure that the ambient light sensor on your MacBook is not blocked and is functioning correctly. If it still fails to turn on, or you notice the keyboard backlight is dim or flickering, you may have an issue. This will turn your keyboard backlight up to the max setting. To check if your MacBook keyboard backlight works, hold down the following key combo: fn + F6 The first thing to do is understand if your MacBook keyboard backlight is actually broken, or just malfunctioning.
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