Please help me how to turn off the backlight of the keyboard of my Macbook Pro.

Hi ...

Try here > Portables: Adjusting the keyboard backlight

That link explains how to change the waiting time before the light dims.

Decrease the brightness with the f5 key, and increase with f6; from full-off to full-on.

The instructions in this post "How to turn off backlit on MacbookPro" will teach you how you can easily turn off backlit in your MacbookPro.

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F5 or F6

I don't understand why nobody wants to also add that you must simultaniously press the fn key while pressing the F5 and F6 keys. Not everyone will no that.

I don't have to press the function key while pressing F5 or F6. In fact, if I press the function key at the same time as F5 or F6 it doesn't do anything on my Macbook Air.

That's cool.... guess it's a difference in OS or settings or something... My won't do a thing without pressing both.

If you have to combine the fn key with an F key to get it to perform its intended function, you probably have the "Use all F keys as standard function keys" setting checked. This is in the keyboard settings in System Preferences. I'm on Lion but I believe this hasn't changed in Mavericks.

emilyivory wrote:

F5 or F6

😎Thank you! With only 6 taps on your keyboard, you managed to clear a problem I'd had for ages! Thank you!😎

i notice that the bottom backlit of one of my keyboard is not working?

For Macbook Pros, the FN key is not required to be simeotaneously held down while pressing F5 / F6. The FN key is only there for games / programs that would use it for special purposes (Such as Steam using F12 (FN + F12) for screenshots, or Minecraft using F3 (FN + F3) to show the Developer GUI).

If you have to use FN and F5 / F6 combined, then check if you have FN + Special keys unchecked in your settings by going to Keyboard > uncheck "Use F1, F12, etc keys as standard keys"