Alcor Micro Unknown Fa00 F W Fa04 — Work

Change the configuration parameter under options from Dual Channel to . HUB Config Changed / Freeze

If the mass production tool fails with an error (like the common 30400 Unknown flash error ), the outlook is grim.

: When a genuine Alcor controller chip—such as the AU6989SN-TA , AU6989SN-GTD , or AU6989SNCS-TA —experiences a major firmware crash, it falls back onto a default bootrom state. It reports its identity code as [FA00] to indicate it has lost its runtime parameters.

When a USB flash drive goes completely unresponsive, Windows usually reports it as an , displays "No Media" with 0 bytes of storage , or triggers a "Disk is Write-Protected" error . If you analyze the broken flash drive using a hardware diagnostic tool like ChipGenius, you will likely see a specific, frustrating controller status: Controller Part-Number: Unknown [FA00] - F/W FA04 . alcor micro unknown fa00 f w fa04 work

: The FA04 code represents the bare-minimum fallback firmware running on the micro-controller's built-in ROM. It is not operational firmware; it is a passive interface awaiting low-level flashing instructions. Phase 1: Hardware-Level Force (USB Test Mode)

When a USB flash drive goes completely unresponsive, it often presents itself to windows utilities with zero bytes or a "No Media" error status. For deep-level recoveries, technicians use diagnostics like ChipGenius to see the underlying hardware.

Flashing an Alcor Micro controller is a destructive manufacturing process. Before continuing, ensure you meet these basic criteria: Alcor [Fa00] Aka Au6989sn-Ta - Usb Flash Drive - Scribd Change the configuration parameter under options from Dual

This device is not broken. It is simply a piece of specialized hardware (usually a smart card reader for corporate security or a touchchip reader) that Microsoft does not have a generic driver for.

Go to the tab, select Hardware Ids from the dropdown. You will see something like USB\VID_058F&PID_FA00 .

Generic formatting tools (like Windows Disk Management or DiskPart) will fail. You need a (MPTool). The primary tool family for Alcor FA00 controllers is AlcorMP (Alcor Micro Mass Production). It reports its identity code as [FA00] to

The AlcorMP tool interacts directly with the controller's firmware. It must match the specific F/W number. If you use the wrong version, you will likely encounter error codes such as:

How to Fix Alcor Micro USB Drive Errors: Resolving "Unknown FA00 / FA04" Firmware Issues

Manually enter the Vendor ID (VID) and Product ID (PID). For Alcor devices, these are frequently Add VID/PID Save InstallDrive

# Get device instance ID of the FA00 node Get-PnpDevice | Where-Object $_.FriendlyName -like "*Alcor*"