Horizontal lines on MacBook air 2017

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Level 1

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Horizontal lines on MacBook air 2017

MacBook was working fine, but suddenly I saw horizontal lines all over my screen and it turned off. I restarted it and it worked fine. But the next day the same thing happened and it won't turn on. I called the apple customer service and that told me a bunch of fixes, but MacBook will start sometimes occassionally and the same lines come and it turns off. I took it to apple authorized service center, and when I got that back it worked fine for an hour and than the same problem happened again. Now it's there for like a month and they won't give the problem. What can be the problem?

Posted on Aug 3, 2020 2:41 PM

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Answer 1

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Axel Foley

Level 10

150,984 points

Aug 3, 2020 10:42 PM in response to shagun48

Have you or Apple Service Center do any or all of the tasks below? I think they have but just checking.

Reset SMC by following the directions applicable to your MacBook here ➔ How to Reset SMC. If that does not solve things then-
Reset NVRAM/PRAM by following the directions applicable to your MacBook here ➔ How to Reset NVRAM/PRAM. If that does not solve things then-
Enter ➔ Safe Mode and see if the screen issue still exists in Safe mode. Log out of Safe Mode and then reboot computer. If that does not solve things then-
Finally if none of the above works then you can enter ➔ macOS Recovery Mode and reinstall the macOS and see if that solves it.

If you or someone has performed the above tasks and the issue still persists then I believe that it is a hardware issue. This can be the display itself, failing logic board or the display cable that connects the logic board (Graphics Chip) to your display. You should follow up with the Apple Store or an Authorized Service Center when they open or contact ➔ Apple Support again and have them take a second look.

Axel F.

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Horizontal lines on MacBook air 2017

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