When you open the phone place a little piece of tape or make a mark on the metal plate in line with the ic on the original screen when ur placing the plate on the new screen make sure the ribbons and the ic line up with that mark :) simple remove the mark or the tape after
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Also when u take the plate try to lift it from the bottom not the top so it doesn't bend or warp where it's stuck down that way the plate is straight and doesn't have bends and kinks in it I use heat to loosen the adhesive then a flat tool to pry it apart not damaging the original screen flexes or the plate itself :)
When you open the phone place a little piece of tape or make a mark on the metal plate in line with the ic on the original screen when ur placing the plate on the new screen make sure the ribbons and the ic line up with that mark :) simple remove the mark or the tape after