When removing and/or re-inserting the right-hand screw, I damaged the LCD cable and the phone did not work. Fortunately, the power/sensor cable was from a donor phone and I also was ale to use the display assembly from the donor phone as well to a good conclusion. Be very careful to fold the LCD and digitizer cables down out of the way when accessing that screw, or if you want ultimate protection, consider removing the display assembly before removing the power button.