Right-click the AlcorMP executable and select .
If you are looking to resolve this issue or understand its features, here are the most effective steps:
Let's address the elephant in the room:
Download a recent (e.g., Alcor U2 MP v20.09 or later). Run the tool as Administrator. Press F5 to detect the drive.
USB drives throw this error due to distinct software or hardware issues: 1. Corrupted Controller Firmware alcor micro unknown fa00 f w 3613 updated
How to Fix Alcor Micro "Unknown [FA00]" with Firmware 3613 (Updated Guide)
: Issues like bad sectors on the flash memory chip or a failing controller can trigger this identification error.
Insert your corrupted flash drive into the physical USB slot. The utility should scan the bus and assign the drive to one of the visual channel slots on the grid interface. If it fails to register, click . Step 3: Configure the Production Parameters
Match your or the controller code ( AU6989SN-TA / FA00 ) against the software releases. Right-click the AlcorMP executable and select
(common for eD3 memory types). ALCOR U2 MP v23.08.07.00.H (for the most recent updates). 3. The Flashing Process
The error indicates that your USB flash drive has experienced a severe firmware crash or corruption. When this happens, Windows can no longer read the Flash ID (FID) or the controller configuration. This locks the drive into a "No Media," "Write Protected," or "0 Bytes" state.
Fixing an Alcor Micro drive with an unknown status requires low-level Mass Production Tools (MPTools). Ordinary Windows formatting tools cannot fix a corrupted controller. Step 1: Diagnose the Exact Hardware Profile
The computer returns a "Fake" or "Unknown" [FA00] status because it cannot read the Flash ID hardware signature. Press F5 to detect the drive
To fix the error, you must use a specialized Mass Production Tool (MPTool) to reflash your flash drive's controller firmware. This highly specific error occurs when an Alcor Micro USB controller (frequently the AU6989SN-GTC or related AU6989 series) loses synchronization with its NAND flash memory. As a result, the device reports an "Unknown" flash type , a corrupted firmware signature ( F/W 3613 or similar status codes), and often reads as "No Media" or "0 Bytes" in Windows.
: This is a firmware signature code. When it shows as "Unknown FA00," it indicates the controller is responsive but cannot communicate with the NAND flash memory, often due to a corrupted file system or a firmware mismatch.
For the FA00 controller, versions such as have been reported to work successfully. If the tool fails to recognise your drive, try an older version (e.g., v14.xx) or a newer build (e.g., v23.xx).
If your computer suddenly shows an "Unknown USB Device" or "Alcor Micro Flash Drive" with the FA00 firmware signature, you are likely facing a common issue where an Alcor Micro USB flash drive or memory card reader loses its driver configuration, often displaying as having firmware version 3613 or a generic "FA00" firmware. This issue renders the drive unusable, often showing