Chosen Solution
I just replaced my MBP Retina 2013 screen for the (2) second time following a guide from ifixit. When I tried to turn on, I get a black screen. I connected my laptop through HDMI and it works well (I’m working on it now), but the screen is still black. Keyboard blacklight works as well. The Facetime camera works. So I guess it’s the cable that’s broken, can I replace it?? Since the broken screen works when I connect it. Please help!!!
No. It is not possible to separate the display from the case, you WILL break if you try to do so.