Rane, that should help your display problems. Not sure why a horizontal stripe would show up 8month after a drop. I do not think that it is related. As for your WiFi, make sure that all your connectors are properly seated, and that there are no broken cables. It is possible that the drop on the tile floor knocked a cable loose, or broke part of the logic board. Replace the display, and check the board. Let us know what you find. The display replacement will not fix the WiFi.