Camera connector is slightly different and display connector is different. All of the other parts are interchangeable. I know because I converted a 2011 display to a 2012 display by swapping the camera and cable and display cable from the 2012 display with a snapped off hinge mount into a 2011 display assembly I had. If the only issue with the 2012 display is the glass it'll be easier to just replace that. You can swap the glass if you are VERY careful. I had no issues getting the glass to re-stick with hot air.