tried to attach new display; black screen. old display comes on?
I tried repeatedly to replace my broken MacBook Pro 15" Retina display with a new display. I bought a new one online. Attached it using the ifixit guide. Black screen. Bought a second one online. Black screen. Reattached the old display and it comes on (but with lines), so I don't think it's the logic board that's messed up. But what is going on? I would say maybe I made a mistake, except that I followed the ifixit guide to the letter and it obviously works when I put the old display back. Also the model of computer I have is A1398 EMC 2910 and I was careful to select a Retina display for that model. Help!!!
Is this a good question?