Type or copy and paste that command in Terminal then press return (enter your password if required). We verified that the command does indeed work on a couple of our machines here at 9to5Mac.
Today, Twitter user a video showing his MacBook Pro booting up with the iconic chime. He shared the terminal command that you can run to bring it back on your Mac: Now it seems Apple has brought back the hidden option at some point with macOS Catalina. In a fun development today, there’s a short terminal command that’s been discovered that will bring back your Mac’s startup chime.īack in 2016, there was a similar terminal command discovered to keep the startup chime, but Apple killed it not too long after. But this command here to turn it off should turn it off on any machines that do it as well.Apple’s Mac startup chime became an iconic signature of the company’s computers over the years and then in late 2016, it was removed for all Macs going forward with the exception of the 2017 MacBook Air. If you're using an older operating system it's not going to have this PowerChime thing at all. I assume that older MacBooks, ones that are before the USBC adapters, won't actually do this at all. The F10, F11 and F12 media keys toggle mute on or off, decrease volume and increase. An even quicker way to adjust the volume is to use the F10, F11 and F12 media keys on a Mac keyboard. Having to go to System Preferences > Sound, each time, to change the start up chime volume is a bit of a hassle. In Terminal, simply copy and paste the following line, and press Enter on your keyboard. Open Terminal on your Mac, either by using Spotlight or by accessing it from Applications -> Utilities. Whether it works at all depends on your MacBook. The media keys on a modern Apple keyboard. To get the chime, follow the technique detailed below.
This means the chime is in hysteresis, sounding every few minutes repeatedly each time the Macbook returns to a full charge. It seems to lose a little power from being in sleep mode, so it has to top off the charge after 3 or 4 minutes. One to turn it on and one to turn it off. Unfortunately, every time it reaches a full charge, the power chime sounds. So you basically turn off the preference so it doesn't start up again the next time you reboot your Mac and you kill it all. The process is running and looking for that connection. Then a killall will actually kill the process. Use Sound preferences to turn the startup sound (chime) on or off. Well the command there is simply the same starting part there except the bool part is set to false. Say this is how it works on your MacBook right now and you would rather not have it. Now what happens if you want to turn it off.
So after you do this, now it should actually chime. That will actually enable this for systems that aren't currently doing it. So basically it's default right, apple, dot PowerChime and then chime on all hardware dash bool true and then this part here open will actually run the app and there has to be an ampersand there at the end. I don't know if it works on older versions. Of course, obviously, this is for High Sierra.
So first let's look at how to turn it on if it's not working on your MacBook Pro currently. You have to use the Terminal to actually turn this service on or off. It's what I get when I plug in my iPhone and iPad so it's consistent.īut whether you want to actually get it enabled on your MacBook because it isn't or you want to turn it off because you don't like it there's is a way to do that. It gives me an audio cue to what's going on. Maybe the power adapter isn't plugged into the wall so I don't get the sound. I find it useful just to know that I have connected.
Some of you are saying, yes I want to hear that sound. Others with older MacBook Pros, MacBook Airs, it depends on which model you have exactly, aren't hearing that sound. Now some of you with MacBooks and the newer MacBook Pros say sure I get that sound when I plug in. So you can see here, this is my MacBook Pro, and I plug in the power adapter, and, I get a little sound. So I searched around and I found out what it is. Sometimes you do searches on things that you find and come up with useful techniques. You can find all sorts of little things that you can kind of launch, that you're supposed to launch in other ways, and you play around with it. Then I know one of the places you can sometimes find useful little bits is in Core Services. So looking at the top level of my Macintosh hard drive I went into System and then into the Library folder.
Video Transcript: From time to time I poke around in the Mac OS system to see if I can find some useful things. Check out Turning On Or Off the MacBook Power Chime at YouTube for closed captioning and more options.