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How to Fix Mac Won't Wake from Sleep Issue after mac OS 11 Update

2020-12-21 15:01:10 • Filed to: macOS 11 • Proven solutions

When using your Mac, other urgent matters may arise that need your immediate attention. To avoid closing certain programs, you will have to put your macOS 11 on hibernation or sleep mode, so that you can continue from where you left off when you return. When you return and wake your Mac, the system may refuse to respond to key presses and hence won’t wake from sleep. In such a situation, you will wonder what you should do if your Mac won’t turn on. This article will show you how to fix a Mac that won’t up on macOS 11.

How to Fix Your Mac Not Waking from Sleep on macOS 11

The first step in learning how to fix your Mac not waking from sleep on macOS 11 is understanding the problem. macOS 11 refusing to wake up from sleep mode could be due to power management problems or hardware-based configuration fault. The System Management Controller may cause unusual system behaviour like high speed fans, despite Mac not having heavy usage. Computer may also fail to respond to the power button when pressed, or may shut down or sleep unexpectedly.

Luckily, there are various solutions that you can try to fix a Mac that won’t up on macOS 11. They include;

1. Resetting System Management Controller (SMC)

Resetting SMC varies depending on your Mac.

If it is a portable Mac with a removable battery;

  • Shut down Mac
  • Disconnect the connected MagSafe power adapter from computer
  • Remove battery
  • Press and hold Power button for five seconds
  • Release Power button
  • Reconnect battery and MagSafe power adapter
  • Turn on Mac using the Power function.

If it is a portable Mac without a removable battery;

  • Shut down Mac
  • Plug in MagSafe power adapter to a power source and connect it to Mac if disconnected
  • On built-in keyboard, press Shift-Control-Option keys on the left and power utility together
  • Release all functions at the same time
  • Press Power function to turn on computer

If it is a desktop Mac only;

  • Shut it down
  • Unplug its power cord
  • Wait for fifteen seconds
  • Attach the power cord
  • Wait for five seconds then turn on Mac using the Power function.
  • Using the power button of keyboard

When your macOS 11 Mac fails to respond to mouse clicks or taps on the track pad, try pressing the Power button or any key on the keyboard. If nothing happens, try the next solution.

fix a mac that won’t up on macos 11

2. Doing a Hard Shut Down

A hard shut down is recommended when your Mac is completely unresponsive. So, it should not be an often solution because it could damage or corrupt your files. To do a hard shut down, press and hold the Power button until your Mac shuts down. After a few seconds of shutting down boot it up regularly.

fix your mac not waking from sleep on macos 11

3. Resetting NVRAM and PRAM

NVRAM and PRAM, which are non-volatile random access memory and parameter random access memory respectively, may get corrupt and thus cause multiple issues. Whenever you turn off your Mac, these two memory areas store information and settings that is not cleared. Resetting them helps in correcting the corruption to end the issues caused.

  • Shut down Mac
  • Hold down Command, Option, P, and R keys on the keyboard simultaneously
  • Turn on Mac
  • Before the gray screen appears, press and hold Command-Option-P-R keys together
  • Hold them down until Mac restarts and there is the second startup sound.
  • Then release the keys.

how to fix macbook won’t turn on on macos 11

If all these solutions do not fix your Mac not waking from sleep on macOS 11, call AppleCare or take the computer to an Apple Store.

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After learning how to fix MacBook that won’t turn on on macOS 11, you may want to use the best all-in-one PDF editor, PDFelement for Mac. It is the ultimate tool to handle PDF files since it comes with multiple capabilities for PDF management.

what you should do if your mac won’t turn on

With PDFelement for Mac in your macOS 11, you can do quite a lot. It creates PDFs in multiple ways, including from other file formats. It also enables viewing and navigation of PDF documents. If you wish to make changes to improve your PDF, PDFelement for Mac edits by adding text, inserting bates and pages numbers, and various pages elements. It also removes these aspects while moving rotating and resizing graphical elements.

Therefore, PDFelement for Mac benefits you by creating desirable PDF files that you can present in school and at work. Additionally, modification helps you in making unique and attractive documents that will grab readers’ attention.

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Audrey Goodwin

chief Editor

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