If your USB receiver is detected correctly, then there is NO NEED TO UPDATE the firmware of the USB Receiver.

When the Firmware update tool software does not detect a BioSemi USB receiver ("No USB-Receiver found"), then this might be
because you are using an old BioSemi USB driver.

This firmware update tool ONLY works with the Driver name: "MS WinUSB2 Driver" (this is the new P&P driver)
This firmware update tool wil NOT work with the Driver name: "BioSemi USB" (this is the old driver, only used on Windows XP computers or older)
Please see the below page for more information:
http://www.biosemi.com/faq/install_USB.htm

If you are using the old driver, then first uninstall the old driver, and then download and install the new BioSemi USB driver from the BioSemi website. And then again run the firmware updater.

