How to check the hardware is broken

Q. How to check the hardware is broken

Please follow steps below.
1) Connect Keyboard as bootloader mode (While pressing LCtrl, connect it to PC)
2) Start BootmapperClient and press “Options” tab.
3) Press “set keyboard” button at Utils area.
–> If there happens nothing, it works fine.
–> If it shows some error popup, some device is broken.