daayylaaa wrote:
Hi,
I am having the same issue recently! Didn't drop it just woke up, turn my mac on and now it constantly has black horizontal lines. I can even see it on the boot up. When i plug an external monitor the lines aren't there. Any help would be appreciated!
Thanks,
L
Sound like a hardware issue, either the display or the projector cable—
In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment
Make an appointment for a "hardware issue"—
https://www.apple.com/retail/geniusbar/
Outside the USA
https://locate.apple.com/country
From iOS device using the app to make a online Genius Bar appointment is easy:
https://itunes.apple.com/us/app/apple-support/id1130498044?mt=8
(note: due to the temporary closure of Apple Stores and the staggered reopening there may be some delays.
ref: https://www.apple.com/shop/browse/store/temporary_closures )
“Mac notebook, contact us and we'll send you a box you can use to ship it to an Apple Repair Center. We'll return your repaired product to you as quickly as possible. Depending on where you get service, you might be able to check the status of your repair online.” Start a service request https://support.apple.com/mac/repair/service
Call Customer Support (800) MY–APPLE (800–692–7753)
or on line https://getsupport.apple.com/
or call AppleCare Support at 1-800-APLCARE (800-275-2273)
Outside the USA—Contact Apple for support and service by phone
See a list of Apple phone numbers around the world.
https://support.apple.com/en-us/HT201232
Learn how to get your Mac fixed and how much it will cost.
https://support.apple.com/mac/repair/service
Get your Mac ready for service - Apple Support https://support.apple.com/en-us/HT209095