None means the quadstick's flash drive was not visible when QMP started. There could be many different reasons for that.
Restart everything and try again. Why does a new firmware need to be downloaded?
What has any Besavior product to do with playing on the PC? All the Beloader/Besavior products are specific to the PS5.
"His device boots" Which device? PC, Quadstick or Besavior?