General Alcor recovery tools often fail with "Unknown [FA00]" errors. Look for versions released after 2016, such as or later. Users at forums like USBDev.ru and FlashBoot.ru frequently share specific versions that include support for newer FA00 firmware signatures. 3. Configure the Setup (S)
Before attempting a repair, you need to know exactly what is under the hood of your USB drive. Generic or fake USB drives often misreport their specifications, leading to software errors.
: The controller "FA00" is often a placeholder for unknown or generic Alcor controllers.
Open the folder and run AlcorMP.exe . .
: Look for the data I/O pins, which are usually located between pins 29 and 44 depending on the TSOP package layout.
[Main Menu] └── Click [Driver] Button ├── Enter your exact USB VID/PID (e.g., 058F / 6387) └── Click [Add VID/PID] ➔ Save ➔ Close
Unzip the downloaded file directly to your system drive root (e.g., C:\AlcorMP\ ). Avoid placing it deep within long folder paths. Phase 3: Update the Configuration Profile alcor micro unknown fa00 f w fa04 work
When a USB flash drive based on an Alcor Micro controller malfunctions, diagnostic software like or Flash Drive Information Extractor frequently returns a highly specific error string: Controller Part-Number: Unknown [FA00] - F/W FA04 . This signature indicates that the controller is trapped in a generic boot or error state and cannot communicate with the flash memory chips.
If your device is a (SD/MMC/MS/xD), the working driver is usually AlcorMP.exe (for firmware updates) plus a standard USB mass storage driver. In that case, the "Unknown" appears because the device is in firmware mode – you need to flash the proper firmware using AlcorMP under Windows XP/7 compatibility mode.
Because Alcor Micro doesn’t always post public drivers, use a reputable driver pack tool: General Alcor recovery tools often fail with "Unknown
Alcor Micro mass production tools ( AlcorMP ) rely on low-level kernel drivers that struggle with modern security configurations.
Click the button on the right side of the main menu. If prompted for an access password, leave the field completely blank and click Enter. Navigate directly to the Flash Type settings tab.