Using a small paperclip or push-pin, press down on the button inside the pinhole.
Plug your keyboard back into the computer, while holding down the pinhole button.
Once it is plugged back in, your computer should recognize a drive called CRP_Disabled. Please open this.
Download the firmware file from link. Extract this file to an easily found location on the computer.
Delete the file FIRMWARE.BIN from the CRP_DISABLED drive, and then place the file with ISP in it’s name to the CRP_Disabled drive.