How to reboot the Muse

[Raspiaudio]

Hi! you still see the com port when connecting the USB right?
If you do follow this and try to upload the firmware again :

MUSE LUXE speaker with Squeezlite (Logitech Media server)

In the unlikely event that the autodownload mode fails I have hidden a secret IO0 button to force the download mode. Insert a paperclip in the jack port until you feel a click and hold it, turn off and on. Then you should be in download mode.