1) Wear an antistatic wrist strap.
2) Remove the four screws on the board panel with the #2 cross screwdriver. Hold the two handles on the board front panel with both hands and turn them 45° outward at the same time. The board is detached from the backplane.
3) Hold the two handles of the board front panel and pull the board out of the subrack.
4) Take off the antistatic wrist strap and keep it for future use.