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Hi there I’ve got a Macbook Air 2017 13” A1466 and I decided to upgrade the SSD from the stock 128 GB to a Samsung Evo 970 Plus 500 GB - with adapter. I unscrewed all the pentalobe screws, all came out just fine, except one on the side - but the last one came out eventually. I disconnected the battery cable, replaced the SSD with the new one with an adapter, reconnected the battery, put the cover up and seal it with the screws. To my surprise, when I powered on the machine - the screen showed vertical lines, and it still does.
1st I thought it’s got something to do with the SSD, so I replaced the new SSD with the old one. The screen remained the same with vertical lines. I tried plugging out and checking the display cable, but everything seems OK there.
After that, I used a Thuderbolt 2 to HDMI adapter and connected the laptop to my TV. Here, it works perfect, as shown.
I’ve also reseted the NVRAM using the key combination Command+Option+P+R. Any suggestion is helpful, since I don’t think I could have possibly damaged any hardware - because I was very careful. Thank you !
Ouch! Not good ;-{ Some how your display got damaged in the process. Did you press quite hard to get that screw out? The downward pressure on an uneven surface could have stressed the LCD panel just enough to create micro fractures along the metal-oxide traces within the panels glass surfaces. Once damaged there really isn’t anything you can do to fix it other than replace the display assembly. Sorry Here’s the needed part: MacBook Air 13" (Mid 2013-2017) Display Assembly and the guide to put it in MacBook Air 13" Early 2017 Display Assembly Replacement
