No. The WS6906’s USB port is only for external device power (5V output) or connecting to a signal meter probe. MicroSD is the only update method.
Request the file directly from Satlink support or a trusted satellite technician forum. satlink ws6906 software upd free download link
Since the manufacturer (Satlink) typically distributes updates via authorized dealers or direct email requests, here are your safest options for a free download: satlink ws6906 software upd free download link
Open the folder containing the new firmware. Look for the executable file (e satlink ws6906 software upd free download link
Initiate the Flash: Click "Start" on the PC software and immediately power on the Satlink WS6906.