Chosen Solution
My friend cracked his retina display on his Retina MacBook 2015, model A1534. Is it possible to use a Retina MacBook 2016, model A1534 to replace it or is it possible that even though the model number is the same that they will not be compatible?
Both the screen itself and the lid assembly are exactly the same between these models, so yes, it will be compatible as long as you are ordering an A1534 screen.
No they are not fully compatible. 2015 use 1 magnet for the sleep sensor, 2016 use two magnets. The magnets are inside the panel.
This is not entirely true. The 2016 LCD is compatible with the 2015 but not vice-versa. Everything works and it can sleep if you use a later MacOS. I cannot remember if it has to be Mojave and above, but Catalina definitely works. I have installed the 2016 LCD in a 2015 Macbook before.
