External usb key board volume control doesn't work
I have a usb external keyboard connects to my iMac, other keys work well but F10, F11 and F12 cannot control to the volume.
I have a usb external keyboard connects to my iMac, other keys work well but F10, F11 and F12 cannot control to the volume.
What keyboard? (make and model)
What year model iMac? (check About This Mac)
What macOS is the iMac running? (also check About This Mac)
it is a 2.4g wireless keyboard, I don't know the brand of it
iMac model is 21.5-inch, late 2013
it is currently running macOS High Sierra
External usb key board volume control doesn't work