Power up the BCU board.Connect ACS-AP-I hand panel to X13 port of the BCU and connect UBS cable between PC and hand panel.Open Drive Loader 2 tool. If you do not have Drive Loader 2 tool on your PC, install the tool by running Drive_loader_2_2_setup.exe. After installation an icon is created on your desktop.Note: Remember to close Drive Composer before FW update.