Power Lines Down Mac OS

1. I'm pretty new with MacOS and Macbooks in general. I've been a unix user for a long time and right now I'm trying to install the patched powerline fonts to use with OhMyZsh, VIM and the like but I'm.
2. Reinstall Mac OS X. We are back on page one as we need to heed the only call left. Shut down your Mac. Press down the Command and R Keys to power the Mac back up again. The window that pops up titled Mac OS X Utilities has got an option- Reinstall Mac OS X. That's the final call, dear user.
3. Mac mini (M1, 2020) MacBook Air (Retina, 13-inch, 2018 - 2019) MacBook Air (13-inch, Early 2015 - 2017).

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Dec 21, 2020 • Filed to: Solve Mac Problems • Proven solutions

Mac is usually known for its usability and strong tech-solutions. Apple's system is optimized to survey a clean, quality, and integrated product, with both hardware and software high-development features, working as one. But, sometimes, even their well-designed device may need repairs and knowledge on how to fix a Mac that won't shut down.

Shut down the computer. Disconnect the MagSafe power adapter from the computer, if it's connected. Remove the battery. Press and hold the power button for 5 seconds.

If you're trying to restart or shut down your Mac and the computer keeps getting stuck in the process, then it's time to consider taking a few steps on restoration. First, to discover how to fix a Mac that won't shut down, you need to take back and diagnostic:

• Is your Mac getting stuck on the desktop and not shutting down properly?
• DoFinder Menu and all apps disappear but the Mac is still on?
• Do you have to hold down the power button or to remove the battery to fully shut down?

Also, these complications often occur after an OS, hardware, or software update. So, if you're having similar difficulties, the scenario requires a quick step-guide to reset and clear the system processes to know how to fix a Mac that won't shut down.

Solution 1: Reset the Mac's SMC

The Mac's System Management Controller (SMC) is an integrated circuit (chip) located inside the computer logic's keyboard and responsible for energy inmost physical components. The management unit controls:

• Presses of the power button;
• Sleep and wake mode;
• Management of battery as well as thermal;
• Ambient light sensing;
• The backlighting of Mac's keyboard;
• Indicator for the status of the battery.

As time goes by, the SMC's configurations may be disabled and generate operating anomalies on the computer, like an inability to turn on or off the system, to awake from sleep mode or to charge the battery, for example. To reset the SMC, choose one of the aspects below:

1. How to reset the SMC on Mac notebooks?

First, the solution to how to fix a Mac that won't shut down, according to your Mac model, depends on whether the battery is removable. Then, if the battery of the dead Mac is nonremovable:

1. Unplug the battery charger from the device;
2. Using the built-in keyboard, press 'Shift + Control + Option' on the left side of the keyboard and compress the power button at the same time;

1. Hold these keys and the power button for 10 seconds;
2. Let go all keys;
3. Thrust the power button once again to switch on your Mac.

If the battery of the Mac that can't be turned off is removable:

1. Take out the battery and unplug the battery charger;
2. Press and hold the power button for ten seconds;
3. Reinstall the battery;
4. Hold down the power button again, but this time to switch on your Mac.

2. How to reset the SMC on Mac desktop computers

Follow these steps to resolve how to fix a Mac that won't shut down for iMac, Mac mini, Mac Pro, and Xserve.

1. Unplug the power cord;
2. Wait 15 seconds;
3. Plug the power cord back in;
4. Wait 5 seconds and press the power button to turn on your Mac.

Solution 2: Reset NVRAM

NVRAM (nonvolatile random-access memory) is a small amount of special memory that your Mac possesses. The NVRAM is required to store certain settings and access them quickly, some examples are sound volume, display resolution, startup disk selection, time zone, and recent kernel panic information. If you are experiencing issues related to these settings, like how to fix a Mac that won't shut down, resetting NVRAM may also be necessary, as featured below:

1. Now turn it on and instantly hold down four keys together: Option + Command + P + R.

1. Keep holding the keys for almost 20 seconds during which your Mac might appear to restart;
2. Wait for your Mac to finish starting up.

Note: after doing the procedure, you might want to open System Preferences and adapt any settings that were reset, like sound volume, display resolution, startup disk selection, or time zone.

Solution 3: Try the Safe Boot

This is another method for how to fix a Mac that won't shut down. When you turn on your Mac in Safe Boot mode, it deletes system caches, which may help after an updating process or a crack with software issues. Also, it is the only way to discover if the problem is global or user-guided. Knowing that is worth to have a try and run the Mac in his safe mode, with these steps:

1. Wait 10 seconds and press the power button again;
2. Instantly after you hear the startup beep, hold down the 'Shift' key
3. Let go of the Shift key once you can see the Apple logo and a progress indicator on the display.

This guarantees that your Mac starts into safe mode. However, it takes longer than usual to reach the login screen or your desktop, so give it time. If your Mac works alright after turning on in safe mode, try to restart your Mac and see if an unexpected shutdown happens again.

Solution 4: Repair Disk with Terminal

You can even use the terminal to repair the disk. It has an interface that helps control the UNIX-based operating system that runs below Mac OS X and helps out with many such tasks and problems that are not intuitive. In this case, we are putting it toclear out all the cache dataand font maintenance, which may help in how to fix a Mac that won't shut down.

1. Go to your 'Finder' icon;
2. Click 'Go' in the top menu bar and then 'Utilities';
3. Scroll down and open the 'Terminal' application.

After opening, type all the following commands in the window, one-by-one in execution.

1. rm -rf ~/Library/Caches/*
2. rm -rf ~/Library/Saved Application State/*
3. sudorm -rf /Library/Caches/*
4. sudorm -rf /System/Library/Caches/*
5. atsutil databases -removeUser
6. sudoatsutil databases -remove
7. sudoatsutil server -shutdown
8. sudoatsutil server -ping
9. sudorm -rf /var/folders/*

After you perform the last line, restart your Mac.

Conclusion

The tutorial offers a four-step guide with multiple solutions for how to fix a Mac that won't shut down. Read them with patience and calm before doing the tread. Each part contains different approaches to the repair service, divided into:

• Reset both SMC and NVRAM (step 1 and 2);
• Perform a Safe Boot (step 3);
• Repair Disk with Terminal (step 4).

Also, you may need to observe day by day if everything's hardware or software related is working fine. Whatsoever, with all of the actions, you should be able to solve the problem out.

By the way, the Recoverit Mac data recovery toolhelps you recover all kinds of files on Mac, even from an unbootable Mac. Go further and get the ways ofrecovering data from crashed Mac.

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