How to Fix a Mac Won't Wake Up on mac OS 10.15
It’s possible that your Mac has refused to wake up and doesn’t boot up no matter what you try. In most cases this follows after a macOS 10.15 Catalina update. To fix a Mac that won’t up on macOS 10.15 Catalina on a screen that gives a gray, white or any other screen background that shows it’s almost like your Mac is dead a number of things can be done. You’ll also realize that at times it’s not a serious problem just something you hadn’t checked. Even so, to fix your Mac not waking from sleep on macOS 10.15 doesn’t have to be very complicated.
How to Fix Mac not Wake from Sleep Issue after macOS 10.15 Update
Firstly, it’s possible that before you even seek how to fix MacBook won’t turn on on macOS 10.15 Catalina to ensure you’re not missing anything. Firstly, do check the power cord on your Mac, including the adapter to ensure that the power and your Mac device are connecting normally. You could plug in a phone charger or something else to confirm that there’s power and it’s working well. Those using MacBooks can also confirm whether their laptop power adapters are the correct ones. Even so, the problem could be something that wasn’t there before and simply came up when you updated macOS 10.15 Catalina.
What you should do if your Mac won’t turn on in 10.15 after updating the macOS Catalina shouldn’t be hard. Actually you can try a number of things.
The problem could be related to your Mac display. If you can disconnect it do it, as you hold down the power tab until a sound is given as if the Mac is starting up, or even a drive or fan sound. In some, LED indicators will be shown. In such a case, it’s possible the display is the issue. If you’ve a MacBook touch the trackpad as it boots up and wait for a click. If there’s one the issue making your Mac not to wake up is related to the display.
At times, by disconnecting the accessories connected to you Mac apart from the keyboard and mouse the device can wake up. Go ahead and disconnect and try to start the device. These include disconnecting FireWire and USB gadgets as well as hardware from third party developers such as PCI cards and RAM that’s not from Apple. Do restart after you’ve removed them.
If you find that the process has rectified the problem do go ahead and ensure every device is reconnected one at a time and restarting the device every time. In the process you’ll know the device making your Mac not to wake up on macOS 10.15 Catalina.
New macOS Catalina
If the problem still persists there’s still something you can do. Firstly ensure WiFi or Ethernet is connected.
Step 1: In Recovery Mode restart the device easily by holding Command+ R keys down at startup.
Step 2: In Disk Utility look for First Aid and run it for your main hard drive or Macintosh HD if you haven’t titled your hard drive yet. On all the noted items go ahead and Repair them.
Step 3: Do restart the device again by pressing Command+ Option+ R or Internet Recovery Mode. Note that this process could take a while and patience is advised.
Step 4: Do select installation of new macOS 10.15 Catalina. The installation could take a while and patience is also advised. Do give the Mac some time to restart prior to continuing with the macOS set up.
Step 5: Once you’ve logged in use the on-screen guidelines to complete the process.
For those with newer Macs, particularly Mac computers released since 2013, Apple Diagnostics can help. It comes inbuilt.
Shut down the Mac or restart, before holding and pressing D-key as the Mac is in the process of restarting.
Step 1: Immediately Apple Diagnostics should begin automatically.
Step 2: Note that with the running of Apple Diagnostics and as it comes to an end all the problems affecting your Mac will be indicated.
At times you might want to use a different language. Simply press Command +L and select the language you want.
Do note that there’s no one bullet solution that fixes all wake up issues in Macs in macOS Catalina. However, trying any of these different solutions should get the problem sorted in your case.
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