Causes and how to fix MacBook screen turning off by itself

MacBook screen automatically turning off can also cause negative effects on the system. What is the cause of MacBook screen automatically turning off? How can users completely fix Macbook screen errors at home? Let's find out the cause and how to fix MacBook screen automatically turning off right here with TipsMake!

Reasons why Macbook screen turns off by itself

In any case, if your macbook suddenly shuts down without any obvious reason, the cause is most likely because your machine is overheating. Macbooks have CPU temperature monitors that can automatically shut down when the temperature is too high to protect the machine's components. 

Some other reasons that explain the phenomenon of macbook screen automatically turning off are computer virus, bad hard drive, unstable power source. 

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How to handle when Macbook screen turns off

For newer MacBook Pro or MacBook Air with built-in battery

Step 1: Turn off your Macbook, then connect it to the MagSafe adapter with one end plugged into a power outlet.

Step 2: Press and hold the key combination Shift + Control + Option + Power for a few seconds.

Step 3: Then release all keys, then the Mac will restart as normal.

On old Macbook Ai, Pro models

Step 1: Turn off Macbook, unplug the power cord.

Step 2: Press and hold the Macbook power button for about 5 seconds and then release.

Step 3: Reinstall the power cable and restart your Macbook as usual.

On a MacBook or MacBook Pro with a removable battery

Step 1: Turn off the Macbook, then remove the battery from the device.

Step 2: Disconnect the power adapter, then press and hold the Power key for 10 seconds.

Step 3: Release the Power key, then reinsert the battery and reconnect the power adapter. Finally, turn on the device and restart as usual.

After performing the above steps, but the Macbook cannot start up, try moving on to the second solution.

Use the keyboard shortcut to exit Black Display mode on your Mac OS. This is the solution for you to solve the problem of Macbook screen turning off. To do this, you do the following:

Step 1: Press the Power/OFF button once, it will bring up dialog boxes that you couldn't see before.

Step 2: Press the S button. This key puts your Mac into Sleep mode.

Step 3: Press and hold the Power button until the Macbook turns off completely

Step 4: Wait about 15 seconds then press the Power button again to restart.

Monitor Macbook battery status

Macbook batteries or even other computers have limited charging cycles, you need to replace the battery if it has reached the correct charging cycle.

To see the current number of battery charge cycles on your Macbook, go to the Apple menu, select About This Mac. Select System Report, then navigate to Power in the Hardware section. The Battery Information section will display the current number of battery charge cycles.

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The maximum battery charge cycle may vary between different Macbook models. On some early Macbooks, the charge cycle was 300, while newer Macbook models limit the battery charge cycle to 1000.

Using 3rd party tools

In some cases, free third-party tools can help, helping to fix Macbook errors quite usefully.

To check the status of the Macbook battery, the free tool Battery Health will be the perfect choice for you. The number of battery charges will be displayed on Battery Health and the information will be explained in easy-to-understand common terms, helping users to monitor battery temperature, capacity, . In addition, the application also displays information showing how long the Macbook battery can be used.

Checking the temperature of your Macbook battery is also very important. If your device battery gets hot frequently, it could potentially lead to many serious errors and problems.

Check which apps are taking up the most battery life

The less you charge the battery, the longer it will last, and the more stable your Macbook will be. The applications you install on your Macbook that use a lot of battery can pose threats to your device's battery.

To check which applications are taking up the most Macbook battery, the simplest way is to select the battery icon on the menu bar in the top right corner of the screen. The applications taking up the most Macbook battery will be displayed.

You can also check Activity Monitor, which displays a list of applications and services that are using a lot of CPU. Go to Applications => Utilities => Activity Monitor. In the Activity Monitor window, carefully observe the items and applications in the CPU and Energy tabs.

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Save battery for Macbook

Another solution is to check these settings located in the System Preferences menu. The default settings are suitable for the user, click Restore Defaults to restore these settings to their original default state.

Battery calibration for Macbook

You should calibrate the battery on your old Macbook once a month. According to Apple, Macbook models released after 2009 are pre-calibrated and do not require calibration.

Calibrating your Macbook battery properly is the best way to monitor your device's battery. If your battery is not calibrated properly, it can cause your Macbook to turn off the screen or go into Sleep mode without any warning. Once the calibration is complete, you will have a more accurate view of your remaining battery level.

In case you have applied all the above solutions but the error of the Macbook automatically turning off the screen without warning still occurs, the last solution for you is to bring it to a reputable Macbook repair center for help.

Conclude

Hopefully with the above information, you know the causes of Macbook screen turning off by itself. If you have any questions, please contact hotline: 1900.1903 for the best answer.