No other DFU devices as per in the guide I have attached ?I've gone through all the steps in the manual to no avail. So, off to the YouTube video. Everything works until there's supposed to be a serial number appearing after a refresh of the USB configuration in the STM32CubeProgrammer application. No serial number appears nor does any port appear in the drop-down list. I've tried both the USB3 ports on the top & back of my case with the exact same results. I've tried multiple times in both instance in case I wasn't completely holding down the correct two buttons to get the device into bootloader mode.
Make sure you have view hidden files visible and delete both guillemot folders as in the guide.Rebooting the computer & attempting to place the Cyro back into bootloader results in the same name as before: STMicroelectronics Guillemot STM DFU Device - Media.
No LEDs are lit.
Thank you for your time & assistance!