In some MacBook forums, I noticed that many MacBook users posted their question: my MacBook screen keeps flickering,then screen death, even if the MacBook OS is reset.
If the screen flicker only occurs when the laptop is moving, this may be the cause of the hardware failure. Most likely, the screen cable is loose or damaged, but the inverter and back light can also cause this problem. MacBook screen flicker during startup, it must be the hardware failure. Occasionally Screen is flickering occurs when using the mac OS, which may be caused by a program conflict or a virus.
You may be wondering how to solve MacBook screen flickers. Here are the steps I can take to resolve the flashing of the MacBook Pro screen. You can refer to it.
Part 1: Reinstall the Graphics Driver on MacBook
1. Open the App Store app to check for Mac software updates.
2. Available updates in the App Store, then use the click "update" to download and install all update.
If it is possible that some software caused a flickering screen,then you need to observe which software has been installed or used recently,and uninstall it for testing.
If the above method can’t help you, or if you have tried to reinstall the system. There are three hardware failures may cause MacBook flickering lines on screen: loose screen cable, graphics card error, and broken screen.
Part 2: Test Hardware Failure Cause MacBook Screen Flickering Lines
Mirror your MacBook to an external screen to test if the external screen is normal and there is no flickering on external screen.
You can refer: How to Laptop Screen Mirroring to TV
If the external screen display normally, it means that your MacBook screen or led/lcd screen cable was error, you need to replace the screen or screen line to repair MacBook screen flickering problem; if you find that the external screen also flash, it means there is a mistake with the graphics card or the motherboard.
Part 3: How to Fix Flickering Laptop Screen Because of Hardware
1. MacBook LCD Cable
Loose screen cable can cause your MacBook screen flickers and freezes. This is very common problem and you need to replace the new MacBook LCD/LED cable to fix it.
2. MacBook Screen
You need to replace a new LCD screen. If your MacBook is still in warranty, it is recommended that you contact Apple's repair store for a free replacement MacBook screen.
Users who have passed the warranty have two ways to change the screen: find a repair shop nearby you to change the LCD screen,or choose a more cost-effective method, buy a new MacBook LCD screen. Online laptop accessories supplier GEMWON, You can buy all brands new LCD screen.
3. Graphics or Motherboard Failure
If the CPU is heat serious, it will cause MacBook flickering lines screen. This may be related to the you running multiple large software at the same time. You can try to turn off some of them first and then check if the problem is solved. If the problem persists, it is recommended to consult a professional maintenance person and don’t disassemble it.
Summary:
Screen flickering on MacBook is annoying,there are several sources of faults, it may be that the screen color is not calibrated in place, or because the graphics card is overheated, the screen and cable is damaged, you need to try some methods until flickering screen crash is solved.
Related Articles:
How to Repair the Broken MacBook Screen
How to Fix MacBook White Screen of Death
How to Fix Laptop Screen Flickering