Alcor Micro Unknown Fa00 | F W Fa04 Fixed

(which is not a real Alcor model) with the correct hardware profile, typically mapping it to AU6989SN-TA AU6989SNCS-TA Flash ID (FID) Correction

If you have a USB flash drive showing the FA00 or FA04 code, the primary solution is to perform a , commonly known as "re-flashing" or "repairing" the drive. This process uses special tools called "Mass Production Tools" (MP Tools) provided by Alcor.

The NAND memory on your flash drive is physically dying. You can try increasing the ECC cap in the settings, but the drive may be reaching the end of its lifespan.

The internal programming of the USB controller is corrupted.

Use this tool to find the exact VID (Vendor ID), PID (Product ID), and Controller Model alcor micro unknown fa00 f w fa04 fixed

to begin the low-level format and firmware write. Once finished, the status should change to a "Fixed" or "Success" state. This process will wipe all data

: The existing firmware (F/W) on the chip is damaged, leading it to report a generic or "unknown" ID like FA00 instead of its true model number.

When a flash drive is plugged in, its micro-controller acts as a bridge, reading a unique Flash ID (FID) from the memory chip. If the controller crashes, encounters a severe bad-block cluster, or runs mismatched internal firmware (like F/W FA04), it drops into a fail-safe or "Test Mode".

Type in the exact VID/PID of your device found during the ChipGenius scan (the default fallback values are typically 058F and 1234 ). Click , and then select Save InstallDrive . Step 4: Configuring the Low-Level Flash Parameters (which is not a real Alcor model) with

You will need:

) fails to identify the controller part-number or the flash memory chip correctly , often displaying a generic or incorrect placeholder like The fix involving " FA04 fixed

Plug in the flash drive. If it is not detected, you may need to manually trigger

Download a modified version of or FC MpTool that matches your physical controller. You can try increasing the ECC cap in

After a successful flash, the tool will likely show a green circle. You can now close the MP Tool, safely eject the drive, and then re-format it using Windows . Your drive should now be properly recognized again. If the process fails with errors like 30400 - Unknown flash error , it indicates the tool cannot communicate with the flash memory, often pointing to more serious hardware damage.

Windows 10/11 installed a faulty or outdated driver.

If the drive is recognized but shows as an "unknown" or "uninitialized" fixed disk: Right-click the Start button and select .

The tool will likely detect your drive even if Windows cannot. Follow the on-screen instructions to re-partition or repair the firmware. Final Steps: If the Device Cannot Be Repaired