Use a Phillips #00 screwdriver to remove the fifty 3 mm-long screws securing the frame bracket to the frame.

The third photo has the same screws marked by quadrant. Use this photo during reassembly to help account for all the screws:

Bottom-left = 9 screws

Bottom-right = 14 screws

Top-right = 12 screws

Top-left = 15 screws