One the power supply board is reattached the shield plate needs replaced. Again be careful about that metal shielding tape, you don't want to tear or damage it. Fold it back into place and replace the two screws to anchor it. Careful as you put it back as there is a small tab at the top that needs to be correctly placed to get the shield in place or it will keep the screw holes from lining up correctly. Blue circle in first photo shows where this tab is.