Why doesn't fn work on a macbook?

Question

macOS

Question about Macbook Pro latest version. Why doesn't the fn+f1(f1-f10) key combination work? The course just disappears and no reaction occurs. The combinations fn+f11 and fn+f12 work fine. Separately, all f1-f12 also work fine.

Answer 1

By default, these keys do not work like F1-F12, but like normal keys.
Check F1/F2 - they should adjust the brightness of the backlight (without pressing Fn).
If it doesn't, check with Fn pressed.
The settings for this functionality can be checked here:
 > Системные настройки > Клавиатура