fix MacBook Pro screen flickering vertical lines issues

How do you fix MacBook Pro screen flickering vertical lines issues?

Wondering how to fix your MacBook Pro screen if it’s a flickering vertical lines issue? If yes, then worry not; Tech Zones is here for you. to provide solutions that will help you tackle this problem and get your MacBook Pro back to its optimal display performance. It’s possible to fix the issue of flickering vertical lines showing on your MacBook Pro screen.

For this, you have to restart your MacBook Pro, adjust display settings, and update MacOS. Additionally, you have to check for app or software issues and reset NVRAM/PRAM. Running Apple Diagnostics and checking for loose connections are also some other crucial steps to follow. But if the problem is still there, don’t wait to contact Apple Support or authorized service providers.

Let’s take a detailed look at all these effective steps to fix screen flickering issues on your laptops or MacBooks!

Learn How to Fix Your MacBook Pro Screen Flickering Vertical Lines Issue

Here’s how to fix your MacBook Pro screen if it’s a flickering vertical lines issue.

1. Check Your MacBook’s Temperature

Screen flickering and vertical lines on a MacBook Pro can sometimes be related to overheating. Ensure that your MacBook is not getting excessively hot, as overheating can lead to display issues. Place your MacBook on a flat, cool surface and allow it to cool down if it feels warm. Additionally, check if the issue persists when the MacBook is in a cooler environment. If temperature-related, managing the device’s heat might resolve the problem.

2. Try A Different Display

To rule out potential issues with your MacBook’s display, connect it to an external monitor or TV. Use the appropriate cables or adapters to establish a connection. If the flickering and vertical lines appear on the external display as well, it indicates that the problem may lie within the MacBook itself. On the other hand, if the external display works fine, the issue might be isolated to the MacBook’s built-in screen, and further troubleshooting may be needed.

3. Reset SMC (System Management Controller)

Resetting the SMC is a common troubleshooting step for various MacBook issues, including display problems. Here’s how you can do it:

  • For MacBook with a non-removable battery:
    – Shut down your MacBook.
    – Connect the power adapter.
    – Hold down Shift + Control + Option + Power button simultaneously for about 10 seconds.
    – Release all keys and the power button.
    – Turn on your MacBook.
  • For MacBook with a removable battery:
    – Shut down your MacBook.
    – Remove the battery.
    – Press and hold the Power button for about 5 seconds.
    – Reinsert the battery.
    – Turn on your MacBook.

Resetting the SMC can often resolve issues related to power, battery, and display. After performing these steps, check if the screen flickering and vertical lines persist. If the problem persists, further diagnosis or professional assistance may be necessary.


The non-volatile random-access memory (NVRAM) or parameter random-access memory (PRAM) stores numerous settings that your MacBook Pro uses. In some instances, resetting the NVRAM or PRAM can assist in clearing up display-related problems. Restart your MacBook Pro and hold down the Option, Command, P, and R keys simultaneously till you hear the startup sound for the second time. This step resets the NVRAM/PRAM and can help you learn how to fix your MacBook Pro screen if it’s a flickering vertical lines issue.

5. Check for Loose Connections

If you’re comfortable working with hardware, you can check for any loose display connections in your MacBook Pro. Turn off your MacBook Pro, remove the back cover, and gently investigate the display connections. Ensure they’re well seated and not loose. Reconnect any loose connections cautiously, ensuring that they no longer harm any components in the process.

6. Seek Professional Assistance?

If you’re still struggling to figure out how to fix your MacBook Pro screen if it’s a flickering vertical lines issue, despite all your best efforts, it is time to look for expert help. Contact Apple Support or go to an authorized repair services provider like us for professional guidance and expert repair services. They have the necessary knowledge and equipment to diagnose and solve complicated hardware issues, ensuring your MacBook Pro display functions efficiently.


Dealing with flickering or vertical lines on your MacBook Pro screen can be frustrating, especially when you rely on your tool for daily tasks or personal use. However, with these troubleshooting steps, you can effectively fix the Macbook which is flickering verticals and horizontal lines on the screen, and clear up these display-associated issues.

We hope this blog has been beneficial to you and you learned how to fix your MacBook Pro screen if it’s a flickering vertical lines issue. Implement these steps to troubleshoot and fasten the difficulty, and don’t hesitate to contact Tech Zones to enjoy the usage of your MacBook Pro with a totally functional and flicker-free screen!

Frequently Asked Questions

How do I get rid of vertical lines on my MacBook Pro?

To address vertical lines on your MacBook Pro, try resetting the System Management Controller (SMC) by shutting down your MacBook, holding down Shift + Control + Option + Power for 10 seconds, and then restarting.

How do I get rid of glitch lines on Mac?

To eliminate glitch lines on your Mac, resetting the NVRAM (Non-Volatile Random-Access Memory) can often help. Restart your Mac and hold down Command + Option + P + R until you hear the startup sound twice.

How do I stop my MacBook Pro screen from flickering?

To stop screen flickering on your MacBook Pro, checking and adjusting the display’s refresh rate in System Preferences can often resolve the issue. Open System Preferences, navigate to Displays and choose a suitable refresh rate for your screen.

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