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Help! Вlack squares on macbook screen

On the macbook screen periodically appear for literally 0.1 second black squares.


They have different sizes and positions each

time, but the bottom line is that they are huge black squares, such

as when disconnecting a cable or something similar.


That is, just half of the screen becomes as if off for a split second.

This causes discomfort. It happens that this happens once a week,

but today they appeared about 10 times in the evening.


Help who has come across a similar one. Am I really lucky enough

to have a third macbook with the same defect?


p.s. the screenshot was taken in photoshop, because it is impossible to screen it, so I do not know if this is a hardware or software problem




Posted on Jun 16, 2021 9:46 PM

Reply
Question marked as Best reply

Posted on Jun 18, 2021 6:09 AM

OK,I know that your Mac has some “black blocks. Let’s Start Apple Diagnostics.

Prepare your Mac

  1. Shut down your Mac.
  2. Disconnect all external devices except keyboard, mouse, display, Ethernet connection (if applicable), and connection to AC power.
  3. Make sure that your Mac is on a hard, flat, stable surface with good ventilation.



Start Apple Diagnostics

Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:

Apple silicon

  1. Turn on your Mac and continue to press and hold the power button as your Mac starts up.
  2. Release when you see the startup options window, which includes a gear icon labeled Options.
  3. Press Command (⌘)-D on your keyboard.

Intel processor

  1. Turn on your Mac, then immediately press and hold the D key on your keyboard as your Mac starts up. 
  2. Release when you see a progress bar or you're asked to choose a language.
  3.  


View the test results

Apple Diagnostics shows a progress bar while it's checking your Mac:

When testing is complete, Apple Diagnostics shows the results, including one or more reference codes. Learn about Apple Diagnostics reference codes.

To repeat the test, click “Run the test again” or press Command-R.

To restart your Mac, click Restart or press R.

To shut down, click Shut Down or press S. 

To get information about your service and support options, make sure that your Mac is connected to the internet, then click ”Get started” or press Command-G. Your Mac will restart to a webpage with more information. When you're done, choose Restart or Shut Down from the Apple menu.


Official appointment

https://getsupport.apple.com 


1 reply
Question marked as Best reply

Jun 18, 2021 6:09 AM in response to onetwoptiza

OK,I know that your Mac has some “black blocks. Let’s Start Apple Diagnostics.

Prepare your Mac

  1. Shut down your Mac.
  2. Disconnect all external devices except keyboard, mouse, display, Ethernet connection (if applicable), and connection to AC power.
  3. Make sure that your Mac is on a hard, flat, stable surface with good ventilation.



Start Apple Diagnostics

Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:

Apple silicon

  1. Turn on your Mac and continue to press and hold the power button as your Mac starts up.
  2. Release when you see the startup options window, which includes a gear icon labeled Options.
  3. Press Command (⌘)-D on your keyboard.

Intel processor

  1. Turn on your Mac, then immediately press and hold the D key on your keyboard as your Mac starts up. 
  2. Release when you see a progress bar or you're asked to choose a language.
  3.  


View the test results

Apple Diagnostics shows a progress bar while it's checking your Mac:

When testing is complete, Apple Diagnostics shows the results, including one or more reference codes. Learn about Apple Diagnostics reference codes.

To repeat the test, click “Run the test again” or press Command-R.

To restart your Mac, click Restart or press R.

To shut down, click Shut Down or press S. 

To get information about your service and support options, make sure that your Mac is connected to the internet, then click ”Get started” or press Command-G. Your Mac will restart to a webpage with more information. When you're done, choose Restart or Shut Down from the Apple menu.


Official appointment

https://getsupport.apple.com 


Help! Вlack squares on macbook screen

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