1. There Are Always Problems Mac Os Sierra
2. There Are Always Problems Mac Os Operating System
3. There Are Always Problems Mac Os Catalina
4. There Are Always Problems Mac Os X

Find more information about how to update mac os the right way. If you can't login after upgrading to Catalina. There's a known problem of failing to login after the installation. Unfortunately, the only way to fix it — at least for now — would be to roll back to Mojave: Clean up your Mac with CleanMyMac X and backup your data.

It’s safe to say that nearly every Mac user wants to update to the newer macOS versions. However, what they do not know is that even a stable macOS like High Sierra or Mojave has its disadvantages. That means if you are thinking about an upgrade, you have to prepare to troubleshoot some issues at some point.

1. One of the most common MacBook problems is the battery drainage. If your battery drains faster than usual, then reset Power Management and restart your MacBook. Also, resetting SMC might do the trick here. However, if your MacBook dies in between read/write operations then it will result in data loss.
2. MacOS Big Sur won’t download. If you see a message while you’re downloading Big Sur that says.

One of the most common issues with High Sierra is the sleep-wake failure, which causes a MacBook not to wake up from sleep or just randomly restart itself. After some Mac users updated to High Sierra or Mojave, they reported having this problem, where they find it difficult to wake their devices from sleep. Regardless of the model or type of Apple computer they’re using, they just cannot wake up their devices from sleep.

But how does this sleep function activate?

Putting Your Mac in Sleep Mode

The sleep mode is only an optional feature, but it is quite handy for Mac users who need to regularly take a break from using their devices yet forget to switch them off. It’s also a useful feature that can help you achieve your energy-saving goals.

Pro Tip: Scan your Mac for performance issues, junk files, harmful apps, and security threats
that can cause system issues or slow performance.

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To activate this feature, do the following:

1. Open the Apple menu.
2. Go to System Preferences > Energy Saver.
3. Apply the settings you want. You can set the display to switch off after a certain span of time. You can also make the hard drive sleep if you want.
4. Once you’re satisfied with the settings, hit Apply.

Waking Up Your Mac from a Long Sleep

So, you have just upgraded to High Sierra or Mojave and your computer has entered sleep mode. Now, you are faced with a sleep-wake failure issue. What should you do?

Don’t panic! There is a way to fix MacBook sleep-wake failures. Below, we’ve listed the most obvious and effective solutions to resolve your problem, and you can try all of them as needed.

1. Check Your Power and Screen Brightness.

Before you do anything, you need to check the most obvious possibilities. Is your screen brightness set to a minimum? Is your Mac powered on? If you are using an external display, is it actually switched on? Is your Mac plugged into a power source? If you are using a MacBook, is the battery drained?

Oftentimes, your Mac may not be in sleep mode. It is possible that its screen brightness might just be adjusted down lower. It is also likely that your MacBook is just turned off. Simply adjusting the brightness or switching on your Mac can resolve your sleep-wake failure nightmares.

2. Switch Off Your Mac and Turn It Back On.

This step involves forcibly turning off and then turning on your Mac. Doing this will allow you to access your computer again and possibly fix your sleep-wake failure problem. To force-restart your Mac, follow these instructions:

1. Hold down the Power button for a few seconds until your Mac shuts down.
2. Wait for 10 to 15 seconds and switch on your Mac again.
3. Check if the problem persists.

3. Perform an SMC and NVRAM Reset.

Performing an SMC and NVRAM reset is a common troubleshooting technique used to fix display and power issues. If your Mac repeatedly gets stuck on a blank screen every time you wake it up from sleep, you should try resetting the SMC and NVRAM.

Here’s how to perform an SMC and NVRAM reset:

1. Switch off your Mac.
2. Disconnect the power cord.
3. Hold down the Shift, Control, Option, and Power buttons for 10 seconds.
4. Release the keys together.
5. Reconnect the power cord.
6. Switch on your Mac again.
7. Reboot your Mac again, but this time, hold down the Option, Command, P and R keys for 20 seconds.

4. Reinstall MacOS.

If you’ve already adjusted your display’s brightness, checked your connection, and performed an NVRAM and SMC reset yet your Mac continuously wakes up to a black screen, you might need to reinstall your macOS.

Don’t worry, because you can always reinstall your macOS without having to format your computer completely. The general rule of thumb, however, is to have a backup first before resetting your OS. You’ll realize the importance of a backup once you experience data loss.

5. Disable System Hibernation.

Aside from the sleep mode, your Mac also has a hibernation mode, which is also optional. The hibernation mode is a helpful, preventive feature that allows you to keep data in the event when there is no power. However, even without this mode, you can still proceed with your daily tasks.

If you don’t need to hibernate your Mac and you frequently have problems with waking up your computer from sleep, try disabling the hibernate mode. To do this, run these commands in your OS X Terminal:

• sudo pmset standby 0
• sudo pmset autopoweroff 0

These commands will disable the settings of the hardware that are responsible for activating the hibernate mode. If you ever decide to activate this setting again, simply run the commands in your OS X Terminal, but this time, change the value 0 to 1.

6. Reset Your Mac’s FileVault.

It is possible that a glitch is stopping your system from retrieving all necessary contents and files on your hard drive, which are required to wake up your Mac from sleep. As a result, conflict arises between your full-disk encryption protocols like FileVault and your system crashes when it wakes up.

To resolve this issue, try disabling your full-disk encryption protocols. Next, decrypt your hard drive using third-party tools. After that, re-enable your full-disk encryption protocols. See if this solves your problem.

7. Get Rid of System Junk.

System junk, including cache files, broken downloads, diagnostic reports, and unwanted file logs may have built up in your system over time. If not removed, they can take up valuable space in your drive and worse, interfere with your system activities.

To get rid of system junk, you need to download and install a third-party tool like Outbyte MacRepair. Use it to run a quick scan on your system, empty your trash bin, and delete any unwanted files from all common locations.

What’s Next?

Are you still having problems with waking up your Mac from sleep? The best thing you should do is to contact Apple’s support team or bring your Mac to the nearest Apple Store for service.

Though it rarely happens, it is possible that a hardware problem is keeping your Mac from waking up from sleep. Just make sure you contact authorized support or a legit repair center for the best results.

Let us know what solutions helped you solve your Mac sleep-wake failure problems. Comment them below!

Summary: This post is about how to fix when Mac won't boot after macOS update. If macOS Big Sur or macOS Catalina update makes your Mac not booting up, you'll know why and how to fix it quickly and easily.

Apple releases macOS and software updates periodically for better user experience. However, it backfires when your Mac is not booting up after macOS update. Especially for some Mac newbies, Mac not turning on would drive them crazy.

Hence, this post will walk you through this problem. Then, you'll know what to do when Mac gets stuck on the Apple logo.

All right. Let's begin with why your Mac is not booting up after the macOS update.

Why is the Mac not turning on after macOS update?

Why won't Mac update successfully? It's fair enough to say, most of the time, Mac won't turn on after macOS update because of software incompatibility and bugs.

As we all know, technology inspires new programs and hardware to be released constantly. So, your Mac needs to update to work with most software and hardware. Sometimes, it's an overall macOS update. And sometimes, it's a tiny patch like this.

In detail, a macOS update could involve those activities.

1. Upgrade certain necessary drivers. Sometimes, it simply installs patches to fix bugs. But sometimes, it will replace the whole driver structure to better use hard drives, keyboard, mouse, microphone, camera, etc.
2. Upgrade the Kernel programs. Such updates will improve the security, accessibility, and management of core data.
3. Redesign or update certain built-in applications. Utilities like Disk Utility, Safari, and Mail come along with the operating system. So, it could be updated for a better user experience.
4. Other updates like operating system structure, file system, user interface, etc.

These updates are usually for a better user experience. Or they are for better supporting most of the latest hardware and software. However, as it is pointed out, the updated macOS can only work 'most' of them.

For example, Nvidia GTX 750 Ti can't work with Mac OS X earlier than Yosemite. After such a software update, Mac is not working, or the Mac or MacBook stuck on loading screen after macOS update. Once the third-party software and hardware on your Mac won't work with the latest macOS, your Mac won't turn on，or appears a pink screen on your Mac.

Common boot problems after macOS update

macOS is an improved range of Mac operating systems after Mac OS X. Up to now, there are three macOS systems available: macOS High Sierra, macOS Mojave, and macOS Catalina. Nevertheless, updating to each of them could cause problems.

1. Mac won't turn on after macOS Big Sur update

The newest major release of Mac operating system is macOS 11 Big Sur, which now is in beta version. Up to now, known boot issues of macOS Big Sur Beta include the following, or more.

• If you updated to macOS Big Sur 11.0 but not the newest vesion that has fixed existing bugs.
• You choose a wrong startup disk after installing macOS Big Sur 11.

A Complete List of macOS Big Sur Problems and Solutions

It talks about macOS 11 Big Sur update problems including downloading, installing, apps not working, not booting, battery issues and so on. Read more >>

2. Mac won't boot after macOS Catalina update

Then it comes to macOS Catalina. Even though it should be better than the previous two, (In some aspects, it is.) Catalina update problems like Mac won't boot after macOS update still occur.

Except for APFS conversion, the macOS Catalina update will automatically divide your hard drive into two volumes. One is the read-only Macintosh HD system volume, and the other is Macintosh HD - Data for saving your files. But if there is not enough free space for an update, your Mac will get stuck on a update loop.Whta's worse, you might see the Mac folder with question mark at startup because macOS Catalina update is not found.

What's more, the 'Full Disk Access' permission might be a lion in the way for some unauthorized applications. For instance, you have a program that requires certain Kernel extensions. But after updating to macOS Catalina, this program can't access the Kernel resource anymore. It doesn't have permission. As a result, your Mac will be frozen at the loading bar because this program keeps asking for resource permission.

A Complete List of macOS Catalina Problems and Solutions

It talks about macOS Catalina problems including downloading, installing, apps not working, not booting, battery issues and so on. Read more >>

3. Mac won't restart after macOS Mojave update

macOS 10.14 Mojave is coming after 10.13 High Sierra. Thus, the same boot problems on macOS High Sierra could also happen to macOS Mojave. As you might know, Apple introduced the System Integrity Protection (SIP) feature since OS X EI Capitan. It was originally introduced to keep system security. But once this feature was disabled previously before you update to macOS Mojave, it could cause boot problems.

For example, the Google software update on September 23, 2019, was shipped with a bug. This flaw damages the macOS file system on computers where System Integrity Protection is disabled. Many video professionals reported that their Mac crashed due to this.

So, just think about it, even Google can't avoid such software conflict, how about other third-party software? That's one of the reasons why many users who disabled SIP previously get Mac crashed after installing macOS Mojave.

4. Mac won't boot after macOS High Sierra update

One of the major updates in macOS High Sierra is the introduction of the Apple File System (APFS). As a part of the upgrade process, the macOS High Sierra installer will automatically convert the SSD to the APFS file system.

Even though Apple claims that the conversion process is supposed to be risk-free, many Mac users still meet problems. And disk corruption during the update is one of them. In this case, it's sure that the Mac won't restart after update. Mac will stop loading after update for such corruption.

Except for hard drive corruption, hardware or software incompatibility is another major reason. As your computer needs to work with so much hardware and software, the in-between conflict is inevitable. Those incompatibilities could slow your Mac down. They could make your Mac not responsive. Or, the Mac won't let you log in with right password. Also, the Mac could freeze on a black or Mac white screen of death.

• Recover/reset your forgotten Mac password to enter your macOS

What to do if Mac can't turn on after macOS update?

Having discussed why Mac won't boot after macOS update, you may find that it's tricky to hit the point. But don't worry, here are some inspirations so that you can troubleshoot this issue step by step:

• 1. Check if the Mac hard drive is corrupted
• 2. Check if any program is not compatible with your macOS
• 3. Check for a hardware incompatibility

Step 1: Check and repair the Mac hard drive in macOS Recovery mode

If your Mac refuses to boot after the update, you should check the Mac hard drive. Chances are that your MacBook ran out of power and the APFS reformatting process was interrupted. Or the hard drive is corrupted for bad sectors.

• How to Boot into & Use M1 Mac Recovery Mode

In this case, you can try to repair the hard drive with Disk Utility under Recovery Mode. Disk Utility helps Mac boot up in some ways sicne it's the built-in free disk repair tool on your Mac.

Learn how to run First Aid on the startup disk and repair the file system or disk errors.

If no disk error was found by Disk Utility, then the hard drive should not be responsible for this issue. To find out why you can't turn on your Mac after macOS update, you can try Safe Mode.

Step 2: Boot your Mac into Safe Mode

You may be wondering 'why should I do this in Safe Mode?' The reason is that Safe Mode will only launch some basic necessary programs at startup. It’s easier to isolate incompatibility software that makes your Mac unbootable.

Make sense, right? Then let's dive into details on how to do this.

• 1. Press and hold the power button until the Mac forcibly shuts down.
• 2. To start the Mac up in Safe Mode, restart this Mac with Shift key pressed and held.
• 3. Release the key when you see the progress bar.

If you boot into Safe Mode successfully, you'll see Safe Boot at the right top. At least, it indicates that the macOS update is not failed. Then, it should be third-party software incompatibility.

But to figure out exactly which program makes your Mac unbootable, you need to reboot into Verbose Mode. Verbose mode allows you to see what's happening when macOS is starting up.

You can hold Command + V at startup. Then you'll see a live report when your Mac is booting up. Once you find out the culprit, you can simply uninstall the software in Safe Mode

But if you fail to boot into Safe Mode, it means it's a macOS update failure. The system data is damaged or broken. You need to reinsall the macOS in macOS Recovery mode. You can simply boot into macOS Recovery Mode and choose Reinstall macOS. If you don't want to update macOS anymore, you can try your luck with using APFS snapshot to recover your system.

The point is that macOS reinstallation will risk your data on the Mac. Thus, you should first check your backups. Or you can recover data from unbootable Mac first.

Learn how to get your important files off the startup disk when your Mac won't boot.

There Are Always Problems Mac Os Sierra

Tips: You can prevent APFS conversion with start to install this time if you want to avoid unnecessary problems. But you are not advised to unless you are a Mac command geek.

There Are Always Problems Mac Os Operating System

Step 3: Ask Apple repair store for help

The toughest thing is that your hard drive is fine. And there is no software incompatibility noticed in Verbose Mode. In this case, you should check the hardware inside your Mac.

The reason is that macOS updates are always for better supporting the latest software and hardware. So, the hardware or drivers on your Mac may be too outdated to work with the newer OS.

In this case, you can ask help from the Apple repair store and reset the Mac. If it's the Mac machine itself is too old, you should replace it with a newer Mac model. Or you simply don't allow automatically update the macOS.

How to avoid macOS update failure?

Every time there is a new macOS update available, you'll receive a notification. It asks 'Do you want to restart to install these updates now or try tonight?'. However, it's not safe to update directly because your Mac could get stuck on update or even lose important files. In case the Mac won’t boot after macOS Big Sur or Catalina update, you surely can do some preparations in advance.

There Are Always Problems Mac Os Catalina

• Read several reviews from tech enthusiasts to learn problems when a new macOS beta is released.
• Make sure your Mac model and its hardware work with the updated macOS.
• Read macOS update instructions carefully when you are up to update your system.
• Back up your files, photos, documents, etc.
• Make sure there is enough free disk space for macOS update.
• Make sure your Mac is connected to power to avoid the black screen of death during macOS update.

There Are Always Problems Mac Os X

So, you'd better do these preparations before you update to any operating system. But if your Mac can't boot up already, you should calm down and follow this guide to fix this issue. If you have any more any feasible solution to enrich this article, kindly drop us a hint at [email protected]