The specific chip running the drive (e.g., Alcor, Phison, Silicon Motion).
When a USB drive malfunctions, the issue is almost always a corruption of its —the internal software that tells the USB controller how to talk to the flash memory chips. To reflash this firmware, you need a Mass Production Tool (MPTool) specific to your exact chip. chipgenius 421 link
Crucial identification codes assigned by USB standards bodies. The specific chip running the drive (e
Displays the currently flashed firmware version and manufacturing date. chipgenius 421 link
Plug the problematic USB drive directly into a motherboard port (avoid external USB hubs).
Plug your broken or suspect USB drive directly into a motherboard USB port (avoid external hubs).