MacOS default when you press F1, F2 ... it is not the F1, F2 which are function keys, such as Brightness, volume, keyboard lights .... For F1 is F1, then we select the "Use all F1, F2, ect. keys as standard function keys". When it wants to adjust brightness, volume ... then we use the Fn + F1 (or Fn + F2 .....)
• Illuminate keyboard in low light conditionsEND_SPAN if this item is selected, ie function automatically turns light and adjust the brightness of the keyboard light is switched on
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