Specific steps are as follows:
Determine the position (slot, subrack, and cabinet) of the board to be replaced.
Check the PCB version and CPLD and BIOS versions of the new board and ensure that the versions are correct. If the versions are incorrect, contact Huawei local office for the correct board.
Carry the board in an ESD-preventive box or bag to the site.
Wear a pair of antistatic gloves, or wear an antistatic wrist strap and securely connect the other end to the ESD jack on the cabinet.
Remove the board to be replaced.
Insert the new board into the subrack.
Remove the antistatic gloves or strap and store them in a proper place for future use.