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. Restart your MacBook Pro

It might sound simple, but a quick restart can often work wonders. Sometimes, minor glitches can cause the display to flicker or display unwanted lines. Give your MacBook Pro a fresh restart and check if the problem persists. This is the easiest way to figure out how to fix your MacBook Pro screen if it’s a flickering vertical lines issue.

2. Adjust Display Settings

Misconfigured display settings can sometimes lead to display flickering or the appearance of vertical lines. Make sure your display settings are optimized for your screen’s resolution. Navigate to System Preferences, click on Displays, and adjust the settings as needed to make certain they match the recommended values for your MacBook Pro’s display.

3. Update MacOS

Outdated software can be a common cause of diverse issues, including display-related troubles. Ensure your MacBook Pro is running with the latest MacOS. Keeping your operating system updated not only gives you the latest features but also includes malicious program fixes and improvements, which can help resolve screen-associated troubles.

4. Check for App or Software Issues

Sometimes, specific apps or software programs can conflict with your MacBook Pro’s display, causing it to flicker or show vertical lines. Identify if the issue is specific to any particular application or software. If you find any problematic apps, update them to the latest version or reinstall them to ensure compatibility with your MacBook Pro’s display.


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

6. Run Apple Diagnostics

Apple provides a built-in diagnostic tool to check for hardware issues. To run Apple Diagnostics, shut down your MacBook Pro, after which turn it on while holding the D key. Follow the on-screen commands to run the diagnostics. This tool can help find any hardware issues that can cause the screen to flicker or show vertical lines.

7. 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.

When to 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.

In The Nutshell

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!

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