External Keyboard Backlight

TL1012 Said:

“External Keyboard Backlight:[...]I can't seem to turn my keyboard backlight because when i press that scroll lock button it just increases the built-in macbook keyboard backlight.[...]”

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Try this:

Reset NVRAM or PRAM on your Mac

To Do So:

1. Shut Down: the computer
2. Press and Hold: [Command+Option+P+R]
3. Power On: the computer
4. Hold Down: these keys until the computer restarts for the second time
5. Release: the keys