If your keyboard backlight on your MacBook isn't working, there are several reasons this could be, and some simple solutions to fix it.

Some users may experience issues with their keyboards not working as expected--possibly due to the Mouse Keys function being enabled on their Mac. Read further to get a resolution to this issue.

Some users have reported an issue in which the MacBook Air's ambient light sensor process that automatically illuminates the keyboard seems to not be functioning, or functioning in reverse. For ...