Chosen Solution
I attempted to change my retina display with a brand new ifixit replacement. Despite following the steps meticulously (and disconnecting/reconnecting everything several times), every time I start my MacBook with the new display, the screen hangs displaying a Grey rectangle and never makes it past this. After repeated failures, I followed the same steps and found the original display still works (albeit with the same graphical blemishes it had previously). Is this evidence of a faulty replacement display or is this grey rectangle something that may able to be resolved without asking for a new replacement?
Grey rectangle makes me think more of a graphics failure rather than a screen problem. What’s the history of that machine ? It would be better if you would take a picture and enclose it to your message so that we can also see exactly what you see.
