Is there a way to tell a part number on Retina screens?

[JohnB8812]

The 2013/2014 and 2015 Retina LCDs look identical. Is there a way to find a part number on the screen to figure out which is which? Need a 2013/2014 tester but don't wanna grab a 2015 by mistake. (I'm taking them from a recycled parts bin.

 

[dukefawks]

2015 will work on a 2014 there will just be no brightness control. 2014 on a 2015 will not work. Only way to tell for sure is taking off the hinge cover and wifi antenna and look at the LCD board.

 

[JohnB8812]

Ohhhh ok makes sense. But so the part number is on the LCD inverter board?

 

[dukefawks]

Yes, but you shouldn't really mess with that if it is a good LCD, one mistake and it is dead. Just have a 2015 board and plug in the LCDs and see if they work.