I have a 2015 15" MacBook Pro running MacOS High Sierra and I have a hard time disabling the startup chime. I have tried the following code and the don't seem to work.
sudo nvram SystemAudioVolume=%01
sudo nvram SystemAudioVolume=%00 Not working
sudo nvram SystemAudioVolume=" "
One of the code -- can't remember which one -- doesn’t play start up chime when I power on the laptop from shutdown, but when I restart, the chime still plays.
Another code -- once again I can't remember which one -- doesn’t play the chime when I restart the laptop, but when I power it on from shutdown, it plays the chime.
The other code doesn’t work at all.
Is there actually a code that fully disables the startup chime completely?
sudo nvram SystemAudioVolume=%01
sudo nvram SystemAudioVolume=%00 Not working
sudo nvram SystemAudioVolume=" "
One of the code -- can't remember which one -- doesn’t play start up chime when I power on the laptop from shutdown, but when I restart, the chime still plays.
Another code -- once again I can't remember which one -- doesn’t play the chime when I restart the laptop, but when I power it on from shutdown, it plays the chime.
The other code doesn’t work at all.
Is there actually a code that fully disables the startup chime completely?