Sorry Dan, altering the date via terminal was a lost of time. It didn't work for me. What did work was using a bootable usb. In a friend's Mac, download the desired OS installer (High Sierra in my case for my MacBook Pro Late 2011 - google 'How to Download a Full macOS High Sierra Installer App') and create the bootable USB, HDD or even SSD with Disk Creator (2 steps very friendly freeware. Google = macbook-pro-running-slow-battery-fix. To be able to delete a plist you may have to disable SIP. Saved me a lot of time and money:-) P.S. I also tried to update SMC, but I didn't find a solution for High Sierra as an update mentioned earlier doesn't work on High Sierra and I'm not sure the SMC on my Mac is up to date.
Summary: This tutorial shows you why Mac black screen happens and how to fix Mac black screen. Then, you can turn on your Mac mini, or iMac, MacBook Pro/Air without a black screen problem at startup.
Be it a Mac mini, iMac, MacBook Air, or a MacBook Pro, it could boot into a black or blank screen. It's known as the black screen of death. In some worse cases, the Mac won't turn on at all.
You might be pressed for time to finish a client's work on the MacBook Pro or Air. Or you just want to wake your iMac up to have fun. But the most common recently is that Mac is in a black screen after macOS Big Sur update.
You open the Mac computer and press the power button, only to find that the Mac won't power up. It shows a black screen and is not responding. Probably, you can see a white cursor on the black screen while you slide on the touchpad.
In this situation, what can you do to fix the Mac black screen issue? Just relax. This tutorial will clearly show what causes the black screen on different Mac models. And more importantly, you'll know how to fix it and turn your Mac computer on properly.
- MacBook Pro & MacBook Air black screen
- iMac black screen
- Mac mini black screen
What causes the Mac black screen issue?
The causes of black screen can be varied from one another. There are three major causes.
- Software or hardware incompatibility. It occurs after you have recently upgraded to a new macOS, or have update hardware or firmware. That happens maybe because the new updates could come with unsolved bugs, incompatibility issues, or very large disk space consumption.
- Power issues. Mac boots into a black screen if there is no enough or rated power.
- Poor contact. A computer is composed of lots of hardware and firmware. But once the contacts between them are loose, dusty, or damaged, the computer won't start up normally.
Note: Black scree in upgrading macOS 11 requires more time to set up your Mac. If your Mac doesn't response after a relatively long time, then read through the following solutions.
In addition, there are still some unknown reasons caused by motherboard failure that people cannot tell. And depending on the model and age of your Mac computer, except for the black screen of death, you might see a blank, gray, or blue screen.
Anyway, lots of troubleshooting ideas are available to fix the Mac black screen issue.
How to fix MacBook Pro/Air black screen?
MacBook Air and MacBook Pro are both welcomed for Retina display and keyboards. When such a Mac laptop doesn't power up but boots into a black screen, you can try these solutions.
1. Check the power of your MacBook
Sometimes, the Mac notebook plays no startup chime at startup but shows a black screen only. In this case, the first step is to check if your Mac is charged with enough power. You can plug in the charger and wait for minutes and press the power button. But in some cold environment, you need to warm up the back part of your computer first.
Also, you need to make sure the charger cable is OK when your Mac is charging. You should check your battery cycle to see if it needs to be replaced as well. Then, try a hard restart on your MacBook.
To force restart a MacBook with physical function (F1-F12) keys, you need to first find the power button at the upper right corner. If you are using an older Mac with an optical drive, this is also the Eject button. And for MacBook Pro with a Touch bar, the power button is the Touch ID on the right side of the Touch bar.
After you find the power button of your MacBook Air or MacBook Pro, you can restart your Mac by:
- 1. Press and hold the Command and Control keys along with the power button (or the Touch ID/Eject button, depending on the Mac model).
- 2. Release the keys until you see the Apple logo.
Then, your MacBook should not boot into the black screen but power up as usual.
2. Perform a Power Cycling on your MacBook
If you can hear some spinning noise from the hard drive or fans at startup, it means that the black screen issue is not caused by the lack of power. You can try the magical power cycling.
On a modern MacBook without removable battery like MacBook Pro 13' with Touch Bar and MacBook Pro 15' with Touch Bar, you can long hold the power button to shut it down, wait for 10 seconds around, and then reboot the MacBook.
For some older MacBook like MacBook Air 13' and MacBook 13' whose battery is removable, you can forcibly shut it down, unplug it, remove the battery, and wait for seconds. Then you need to put the battery back and restart the Mac.
3. Wake up your Mac from sleep mode
Probably, your MacBook gets stuck on the login screen and then gets into sleep mode. For such MacBook Air black screen issue, you usually will see the cursor. To wake your Mac from such a dilemma, you can type the first letter of the user name and hit the Enter. Mac will recognize that you type in the wrong information and give you a response, and consequently, it will withdraw from the black screen situation.
4. Check your MacBook's display
Sometimes, a MacBook Pro black screen doesn't necessarily mean that the Mac is not turning on. Instead, you can check the display in two ways.
- Press F1 and F2 keys to adjust the display's brightness and check if the Mac screen becomes brighter. It's possible that your screen dimmed down because you accidentally pressed the brightness keys on the keyboard.
- If the built-in display is not working, try to use an external display via Thunderbolt 3 (USB C) to access the MacBook, and vice versa.
5. Resolve software incompatibility
If you have recently update or upgrade the Mac operating system or any other software, the black screen issue might be caused by a software incompatibility. To solve this problem, you can:
- Reset Mac NVRAM settings: NVRAM stores things like screen resolution, time zone information, and crucially, which hard drive to boot from. Thus, resetting NVRAM might help for boot failure.
- Boot your Mac in Safe Mode: Starting up your Mac in Safe Mode helps to check and prevent some login items from automatically loading or opening. If your MacBook boots into Safe Mode without the black screen issue, you need to uninstall the software that you download recently.
- Boot Mac into macOS Recovery mode: When Mac computers encounter any boot failure, including a black screen, you can try to boot it into macOS Recovery Mode by Command + Shift + Option + R to repair the hard drive in Disk Utility and reinstall macOS.
Is your Mac not working properly? You may want to reset the Mac to its factory defaults and fix some problem.
6. Reconnect all hardware connections
The Mac black screen issue may be caused by loose contacts between hardware, especially if you have dropped the computer or have opened your MacBook Air or MacBook Pro for any updates. You can ask a specialist to help you open the Mac and reconnect them again.
Hopefully, your Mac notebook will start up normally with a loading bar again.
How to fix the iMac black screen?
Even though iMac is packed with the latest processors, faster memory, Retina display, and phenomenal graphics, it can't avoid the iMac black screen issue still.
1. Restart the iMac
Macbook air games free download. When your iMac boots into a black screen, you can first try to restart the iMac.
- Step 1: Find the circular power button on the back of the iMac. With the back of the computer facing you, the power button is in the lower-right corner.
- Step 2: Then press and hold the power button to turn off the iMac.
- Step 3: After a few seconds, press the power button to reboot your Mac.
2. Fix iMac black screen by power cycling
You can also perform power cycling for your iMac desktop to fix the black screen issue.
- Step 1: You need to unplug the power cord and leave it unplugged for fifteen seconds.
- Step 2: Later on, you can plug it back in, wait five more seconds.
- Step 3: Then press the Power button to turn the Mac back on.
3. Check the RAM of your iMac
What's more, you can try to check your RAM and see if it's loose or dusty. It's easy by following these steps (e.g. iMac Intel 27' Retina 5K Display) since iMac is a total package. Adobe photoshop for macbook pro free download.
- Step 1: Unplug all the cables and power cord of your iMac, and then prepared for your iMac facing down.
- Step 2: Then press the button inside of the power cord to remove the RAM cover behind the computer.
- Step 3: Eject the RAM as it was instructed on the cover's surface, and give it a soft wipe.
- Step 4: After making sure there is no dust and no damage, you can plug in power and hold the power button to force restart the Mac.
- Step 5: Then you should long hold the power button to turn the iMac off again.
- Step 6: Put the RAM card back in the slot.
- Step 7: Turn on normally and see if the iMac can boot past the black screen.
Tips: Instead of putting the old RAM back in, you can also upgrade the RAM model per your requirement in step 6.
4. Other quick fixes for iMac black screen
Also, if you have recently updated your iMac to a new macOS and had the black screen problem since then, you can try to reinstall the macOS.
If your iMac is still not turning on properly, you can check the software incompatibility. You can also try these to fix the black screen issue.
- Reset iMac's NVRAM
- Boot the iMac into Safe Mode
- Boot the Mac into macOS Recovery mode
- Check the display's brightness or use an external display via Thunderbolt
How to fix Mac mini black screen?
Not only iMac, MacBook Air and MacBook Pro would boot into a black screen, Mac mini could also get stuck with the same problem. If your Mac mini desktop is facing this problem, try those solutions. C%2b%2b to java converter for mac.
1. Restart the Mac mini
If your Mac mini doesn't power up but shows a black screen, you can first try a reboot.
- Step 1: Find the circular power button on the back of the Mac mini box. With the back of the computer facing you, the power button is on the far-left side.
- Step 2: Then press and hold the power button to turn off the Mac.
- Step 3: After a few seconds, press the power button to reboot your Mac mini.
2. Check all connections of the Mac mini
Mac mini works like a host engine of a computer. That's to say, all your mouse, keyboard, and display are externally connected to the mini case. And those devices could cause a slow or frozen Mac. So, when your computer goes to a black screen, you can check the connections.
I. Check if your Mac mini box and the display is connected with power when the Mac screen won't turn on. It's easy because you will see the lights on if they are powered up. You should make sure your wall outlet, transformer board, and power cable is working.
II. If the power connection is in good condition, you can disconnect unnecessary peripherals including USB hard drive, mouse, keyboard, and other Thunderbolt devices
After removing all peripherals except for the display, you can press the power key to reboot your Mac and see if it can boot up normally.
3. Check the hardware you update recently
Mac mini allows users to replace and update hardware easily. However, some incompatible updates could cause boot failure like a black screen. For instance, you are a Mac guru who is familiar with the Mac mini box structure. And you have recently upgraded the RAM by yourself. But now the Mac mini goes black screen.
When your Mac screen keeps going dark, you can:
- Uninstall the hardware updates you installed recently.
- Open the box again and see if you have put the hard drive, RAM, and other hardware back and connect them properly.
Conclusion
No matter what computer you use, boot failure like Windows black screen and Mac black screen is inevitable. But when your computer boots into the black screen of death, it's not the end of the world. You can find some solutions and solve this problem either by yourself or with the assistance of an Apple store specialist. Anyhow, when your Mac won't boot, please firstly check whether you have a file backup or have recovered files from the Mac hard drive before any repair.
See also:
With the promise of increased functionalities and better performance, it is little wonder how droves of Mac users opted for the High Sierra, some of the users' expectations were however cut short as their Mac seemed to run on slow-mo immediately after this update. Should you be among these affected users and wondering why your mac is running slow after High Sierra update, feel free to read this article for proven fixes to resolve this issue.
First, Check If Your Mac Is Compatible with High Sierra
If your Mac is not compatible with the new macOS High Sierra, it will lead to some problems when using the Mac, like poor performance and running slow. Below is a list of compatible Mac models that could work well with High Sierra.
- iMac (Late 2009 and later)
- MacBook (Late 2009 and later)
- Mac Mini (2010 and later)
- MacBook Pro (2010 and later)
- MacBook Air (Late 2010 and later)
- MacBook Pro (2010 and later)
After checking whether your Mac is compatible with High Sierra, next we will share with you 5 effective solutions to speed up your Mac. Just keep on reading!
How to Speed Up Your Mac after High Sierra Update?
With the uncontrolled hype of the macOS High Sierra update which is around its better data management, video streaming, and gameplay graphics, it is no wonder some Macs are running slowly to accommodate this update. Various issues have been linked to slow performances in Macs, such as full hard drive, system aging or the presence of too many applications running simultaneously. Although the specific reasons for slowing down the Mac might be unknown, the fixes for this problem have been identified and some of our trusted fixes are listed below:
- 1. Use A Mac Optimization Software [100% Workable]
- 2. Clean Hard Drive on Your MacBook
- 3. Activate the Optimize Storage Option on Your Mac
- 4. Decongest Your Mac Memory and CPU Space
- 5. Reconfigure SMC & PRAM/NVRAM
Macbook Air 2011 Charging Slow Sierra Download Lion King 2019
1. Use A Mac Optimization Software [100% Workable]
Macbook Air 2011 Charging Slow Sierra Download Lions
A powerful Mac optimization software can help a lot for a slow Mac. It can efficiently optimize your Mac through some easier ways. Here we found the best Mac optimizer, which is called Umate Mac Cleaner. It is the leading cleanup tool to make your Mac run faster and improve its performance.
4 Ways to Get a Faster Mac with Umate Mac Cleaner
One of the main features of Umate Mac Cleaner is 'Speed Up Mac'，which comes with 4 options to get a faster Mac: disable the startup items, deacivate the heavy consumers, remove the launch agents and free up ram.
- Disable Startup items: Disable startup items which automatically launch when you boot the Mac.
- Deacivate Heavy Consumers: Deactivate heavy consumers that occupy CPU usage and memory.
- Remove Launch Agents: Remove those launch agents that run secretly in the background and automatically start their parent programs.
- Free Up Ram: Deactivate those processes or apps that are hogging lots of RAM on your Mac and create more space for it.
Why Umate Mac Cleaner Stands out Among Other Ways
- 2x greater performance
- 3x faster boot time
- Extremely easy to use
- Speed up Mac with just 1 click
- Safe to use without affecting important data
How to Make Your Mac Faster with Umate Mac Cleaner
Step 1. Download and install Umate Mac Cleaner, and it's free to scan how many files can be cleared.
Step 2. Select 'Speed Up Your Mac' tab on the app and click the big 'Start Now' button for locating the items that you need to disable.
Step 3. Choose those items you want to disable and hit the 'Disable' button to accelerate Mac.
2. Clean Hard Drive on Your MacBook
Unlike the human brain that constantly deletes old and unnecessary data or files by itself, the Mac never automatically removes its data. The flaw of this design is that over time the limited space hard drive becomes congested and even filled up if nothing is ever deleted, hence frequent decongestion is advised.
Decongestion can be achieved via two methods, either manually or automatically. Manually, a user can go through the rigorous process of searching for and identifying all redundant files and documents on his device and delete them manually. However, compared to the automatical way, this is rather time and energy consuming.
Referring to tools such as Umate Mac Cleaner that could really help, which can automatically identify redundant and hidden files and then delete them, freeing up space on your hard drive to improve Mac's functionality and performance.
3. Activate the Optimize Storage Option on Your Mac
The Optimize Storage feature is one of the subtle yet amazing features that Mac supports but other PC haven't deployed effectively. Optimized Storage is an option permitting Mac to arrange and organize files optimally and automatically.
Apple Menu > About this Mac > Storage > Optimized Storage
Once this option is toggled on, it enforces Mac to automatically organize documents and clean unused, hidden or unread items, which can also transfer them to the iCloud, freeing up valuable space on your drive.
4. Decongest Your Mac Memory and CPU Space
A major reason for your slow Mac after its High Sierra update is that numerous applications are running simultaneously to consume vital CPU space so that the system slows down. When some applications run actively, others run in the background and also consume considerable space. To recover memory space and resolve this issue, we need to deploy the Activity Monitor.
Access Applications > Utilities > Activity Monitor
Under the CPU tab, you would see the distribution of CPU usage among the currently running processes. Should you identify an application that is not necessary but is consuming considerable memory space, be swift to eliminate it by tapping it and hitting the close button at the top-left corner of the screen. Unwanted apps can also be toggled off to save Memory.
5. Reconfigure SMC & PRAM/NVRAM
Tips: Instead of putting the old RAM back in, you can also upgrade the RAM model per your requirement in step 6.
4. Other quick fixes for iMac black screen
Also, if you have recently updated your iMac to a new macOS and had the black screen problem since then, you can try to reinstall the macOS.
If your iMac is still not turning on properly, you can check the software incompatibility. You can also try these to fix the black screen issue.
- Reset iMac's NVRAM
- Boot the iMac into Safe Mode
- Boot the Mac into macOS Recovery mode
- Check the display's brightness or use an external display via Thunderbolt
How to fix Mac mini black screen?
Not only iMac, MacBook Air and MacBook Pro would boot into a black screen, Mac mini could also get stuck with the same problem. If your Mac mini desktop is facing this problem, try those solutions. C%2b%2b to java converter for mac.
1. Restart the Mac mini
If your Mac mini doesn't power up but shows a black screen, you can first try a reboot.
- Step 1: Find the circular power button on the back of the Mac mini box. With the back of the computer facing you, the power button is on the far-left side.
- Step 2: Then press and hold the power button to turn off the Mac.
- Step 3: After a few seconds, press the power button to reboot your Mac mini.
2. Check all connections of the Mac mini
Mac mini works like a host engine of a computer. That's to say, all your mouse, keyboard, and display are externally connected to the mini case. And those devices could cause a slow or frozen Mac. So, when your computer goes to a black screen, you can check the connections.
I. Check if your Mac mini box and the display is connected with power when the Mac screen won't turn on. It's easy because you will see the lights on if they are powered up. You should make sure your wall outlet, transformer board, and power cable is working.
II. If the power connection is in good condition, you can disconnect unnecessary peripherals including USB hard drive, mouse, keyboard, and other Thunderbolt devices
After removing all peripherals except for the display, you can press the power key to reboot your Mac and see if it can boot up normally.
3. Check the hardware you update recently
Mac mini allows users to replace and update hardware easily. However, some incompatible updates could cause boot failure like a black screen. For instance, you are a Mac guru who is familiar with the Mac mini box structure. And you have recently upgraded the RAM by yourself. But now the Mac mini goes black screen.
When your Mac screen keeps going dark, you can:
- Uninstall the hardware updates you installed recently.
- Open the box again and see if you have put the hard drive, RAM, and other hardware back and connect them properly.
Conclusion
No matter what computer you use, boot failure like Windows black screen and Mac black screen is inevitable. But when your computer boots into the black screen of death, it's not the end of the world. You can find some solutions and solve this problem either by yourself or with the assistance of an Apple store specialist. Anyhow, when your Mac won't boot, please firstly check whether you have a file backup or have recovered files from the Mac hard drive before any repair.
See also:
With the promise of increased functionalities and better performance, it is little wonder how droves of Mac users opted for the High Sierra, some of the users' expectations were however cut short as their Mac seemed to run on slow-mo immediately after this update. Should you be among these affected users and wondering why your mac is running slow after High Sierra update, feel free to read this article for proven fixes to resolve this issue.
First, Check If Your Mac Is Compatible with High Sierra
If your Mac is not compatible with the new macOS High Sierra, it will lead to some problems when using the Mac, like poor performance and running slow. Below is a list of compatible Mac models that could work well with High Sierra.
- iMac (Late 2009 and later)
- MacBook (Late 2009 and later)
- Mac Mini (2010 and later)
- MacBook Pro (2010 and later)
- MacBook Air (Late 2010 and later)
- MacBook Pro (2010 and later)
After checking whether your Mac is compatible with High Sierra, next we will share with you 5 effective solutions to speed up your Mac. Just keep on reading!
How to Speed Up Your Mac after High Sierra Update?
With the uncontrolled hype of the macOS High Sierra update which is around its better data management, video streaming, and gameplay graphics, it is no wonder some Macs are running slowly to accommodate this update. Various issues have been linked to slow performances in Macs, such as full hard drive, system aging or the presence of too many applications running simultaneously. Although the specific reasons for slowing down the Mac might be unknown, the fixes for this problem have been identified and some of our trusted fixes are listed below:
- 1. Use A Mac Optimization Software [100% Workable]
- 2. Clean Hard Drive on Your MacBook
- 3. Activate the Optimize Storage Option on Your Mac
- 4. Decongest Your Mac Memory and CPU Space
- 5. Reconfigure SMC & PRAM/NVRAM
Macbook Air 2011 Charging Slow Sierra Download Lion King 2019
1. Use A Mac Optimization Software [100% Workable]
Macbook Air 2011 Charging Slow Sierra Download Lions
A powerful Mac optimization software can help a lot for a slow Mac. It can efficiently optimize your Mac through some easier ways. Here we found the best Mac optimizer, which is called Umate Mac Cleaner. It is the leading cleanup tool to make your Mac run faster and improve its performance.
4 Ways to Get a Faster Mac with Umate Mac Cleaner
One of the main features of Umate Mac Cleaner is 'Speed Up Mac'，which comes with 4 options to get a faster Mac: disable the startup items, deacivate the heavy consumers, remove the launch agents and free up ram.
- Disable Startup items: Disable startup items which automatically launch when you boot the Mac.
- Deacivate Heavy Consumers: Deactivate heavy consumers that occupy CPU usage and memory.
- Remove Launch Agents: Remove those launch agents that run secretly in the background and automatically start their parent programs.
- Free Up Ram: Deactivate those processes or apps that are hogging lots of RAM on your Mac and create more space for it.
Why Umate Mac Cleaner Stands out Among Other Ways
- 2x greater performance
- 3x faster boot time
- Extremely easy to use
- Speed up Mac with just 1 click
- Safe to use without affecting important data
How to Make Your Mac Faster with Umate Mac Cleaner
Step 1. Download and install Umate Mac Cleaner, and it's free to scan how many files can be cleared.
Step 2. Select 'Speed Up Your Mac' tab on the app and click the big 'Start Now' button for locating the items that you need to disable.
Step 3. Choose those items you want to disable and hit the 'Disable' button to accelerate Mac.
2. Clean Hard Drive on Your MacBook
Unlike the human brain that constantly deletes old and unnecessary data or files by itself, the Mac never automatically removes its data. The flaw of this design is that over time the limited space hard drive becomes congested and even filled up if nothing is ever deleted, hence frequent decongestion is advised.
Decongestion can be achieved via two methods, either manually or automatically. Manually, a user can go through the rigorous process of searching for and identifying all redundant files and documents on his device and delete them manually. However, compared to the automatical way, this is rather time and energy consuming.
Referring to tools such as Umate Mac Cleaner that could really help, which can automatically identify redundant and hidden files and then delete them, freeing up space on your hard drive to improve Mac's functionality and performance.
3. Activate the Optimize Storage Option on Your Mac
The Optimize Storage feature is one of the subtle yet amazing features that Mac supports but other PC haven't deployed effectively. Optimized Storage is an option permitting Mac to arrange and organize files optimally and automatically.
Apple Menu > About this Mac > Storage > Optimized Storage
Once this option is toggled on, it enforces Mac to automatically organize documents and clean unused, hidden or unread items, which can also transfer them to the iCloud, freeing up valuable space on your drive.
4. Decongest Your Mac Memory and CPU Space
A major reason for your slow Mac after its High Sierra update is that numerous applications are running simultaneously to consume vital CPU space so that the system slows down. When some applications run actively, others run in the background and also consume considerable space. To recover memory space and resolve this issue, we need to deploy the Activity Monitor.
Access Applications > Utilities > Activity Monitor
Under the CPU tab, you would see the distribution of CPU usage among the currently running processes. Should you identify an application that is not necessary but is consuming considerable memory space, be swift to eliminate it by tapping it and hitting the close button at the top-left corner of the screen. Unwanted apps can also be toggled off to save Memory.
5. Reconfigure SMC & PRAM/NVRAM
The System Management Controller (SMC) and parameter RAM (PRAM) are important tools in ensuring the smooth functioning of the Mac. Reconfiguring the SMC resolves all hardware management issues like fans or battery faults and so on. While reconfiguring the NVRAM handles issues like pertaining to booting, screen resolutions and battery charge, etc.
SMC on Mac Mini, iMac, Mac Pro & Xserve reconfiguration
- Power down your Mac and disconnect the cord
- Leave the system for 15 seconds minimum, then reconnect the power cord
- After a 5-second wait, power up the Mac normally
SMC on MacBook Pro, MacBook Air & MacBook reconfiguration
- Power down your Mac and disconnect the cord
- Leave the system for 15 seconds minimum, then reconnect the power cord
- Long Press Shift + Option + Control + Power button for 10 seconds minimum, power up the Mac normally after releasing all keys
PRAM/NVRAM reconfiguration on all Macs
- Power down the Mac, wait a few seconds
- Power up and simultaneously press Cmd + P + R + Option
- Release keys after hearing the restarting beep
Final Note
The slow Mac after High Sierra update is a widespread problem facing many users using different Mac models. However, the above manual solutios would cost you a great amount of time. Instead, the most effective one is Umate Mac Cleaner. It's an useful mac remover with just one-click, which greatly save your time with efficient cleanup. This app works amazing to speed up your Mac and you must be shocked by its powerful functions after using it.
