Controller Vendor: Alcor Micro Controller Part-Number: Unknown [FA00] - F/W FA04 Flash ID code: EC3A94C3A4CA (may vary) VID = 058F PID = 1234
Right-click and select , then restart your PC to let Windows try to re-identify it.
Troubleshooting Alcor Micro "Unknown Device" (FA00/FA04 FW) Issues
Comprehensive Troubleshooting Guide: Alcor Micro Controller Go to product viewer dialog for this item. "Unknown [FA00] F/W FA04" and Overheating Errors
: This code often appears when the controller cannot communicate with the NAND flash memory chip (the part that actually stores your data). Overheating
Click Refresh (R) . Your drive should appear in one of the status grid boxes, likely highlighted in yellow or red with a "Bad Block" or "Firmware Error" description.
When a program like ChipGenius shows "Controller Part-Number: Unknown [FA00] - F/W FA04," it isn't simply a random error. It indicates that the system can identify the vendor (Alcor Micro) but cannot automatically match the controller's internal signature to a known model in its database. The "FA00" in brackets is a hexadecimal code that serves as a unique identifier for the controller, while "F/W FA04" is the version of the firmware currently flashed onto the chip.
: Factory flash programs utilize raw kernel filter drivers that often crash or fail to load on modern 64-bit platforms or Windows 11 secure environments.
: Unzip the downloaded AlcorMP package. Navigate to the folder and run the executable file ( AlcorMP.exe ).
: Once a green "PASS" is shown, close the AlcorMP utility. Then, safely unplug your USB flash drive and plug it back in. It should now be recognized by Windows as a normal, empty drive.
