7/9/2023 0 Comments Ios8 power chime![]() If you still see a blank screen after about 20 seconds, it's time to move on. On an older Intel-chipped MacBook Pro, press and hold the power button for about 10 seconds, then press and release the power button and immediately press and hold Command + R until you see an Apple logo or other image. If the startup options window doesn't appear, release the power button and try again. If the options window doesn't appeal, release the power button, and press and hold it again for another 10 seconds. You should see the startup options window, which includes a gear icon labelled Options. On an Apple-chipped MacBook Pro (from the M1 MacBook Pro 13 to the new 2023 M2 Pro and M2 Max models), press and hold the power button for about 10 seconds. Sometimes a good old-fashioned hard restart is all it takes to fix all kinds of MacBook issues. Still no luck? Then try a forced reset and then start up from macOS Recovery. Once you're screen is back, it's worth running Disk Utility to repair any errors (Image credit: Apple / Future) If you definitely have power, but your MacBook isn't starting up, make sure it's disconnected from anything other than your charging cable and adapter. Peripheral devices like printers, keyboards, external drives, mice and trackpads can all cause potential start up problems. Hit F2 or use the control bar to try increasing the brightness on your MacBook Pro. It’s also possible that you (or your cat) might have unintentionally hit the brightness keys on the keyboard at some point at that you screen is simply dimmed. Check the power indicator light shows so you can rule out a faulty power cable. If you're running on battery, connect your laptop to its charger just in case the battery has run down. It can be a massive relief to discover the issue is something as simple as this. But this command here to turn it off should turn it off on any machines that do it as well.This might seem obvious and you've probably already done it, but just to be sure, do check the power and brightness controls. 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. ![]() ![]() Whether it works at all depends on your MacBook. One to turn it on and one to turn it off. 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. 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.
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