(sorry, I didn’t get pictures of the back of the LCD and the mating side of the motherboard.)

There are zebra connectors on the LCD. I didn’t do this, but the zebra connectors probably should be removed and cleaned with 95% isopropyl along with the surfaces to which they mate. Be sure to get them on the mating surfaces with the rubberized flank on the side

Press the motherboard evenly back into place.

Replace the four washers and screws taking extreme care to ensure they go straight back in.