Some versions lack read-back – use a hex editor to dump via USB (requires low-level access).
The search term "usbfirmwaretoolalcorau6366au6371 verified" refers to a specialized utility used for the maintenance and repair of USB flash drives equipped with Alcor Micro controllers, specifically the usbfirmwaretoolalcorau6366au6371 verified
Progress bar should complete in 5–10 seconds. Some versions lack read-back – use a hex