Alcor Micro Unknown Fa00 F W Fa04 Fixed Hot!
Decoding the Error: "Alcor Micro Unknown FA00 F/W FA04 Fixed" – A Complete Guide to USB Drive Recovery
By: Data Recovery Experts
(Should I propose likely next steps for identifying or fixing the device?) alcor micro unknown fa00 f w fa04 fixed
Diskpart Clean: Open Command Prompt as admin, type diskpart, then list disk. Identify your USB number and type select disk X (replace X with your number), then clean and create part pri to reset the partition table. Decoding the Error: "Alcor Micro Unknown FA00 F/W
4. Solution: FA04 Fixed
The term "FA04 fixed" refers to successfully reprogramming the controller with a known working firmware version that reports FA04 (or similar stable ID) instead of FA00. Unsafe removal: Yanking the drive out while writing
Verify the Controller: While the error shows "FA00," this is often an alias for the Alcor AU6989SN-TA or AU6989SN-GT chips. 2. Use the Alcor Mass Production (MP) Tool
- Unsafe removal: Yanking the drive out while writing data (especially during a format or partition operation).
- Power fluctuation: A sudden voltage drop or surge while the drive was active.
- Failed firmware update: Attempting to flash new firmware that was incompatible.
- Physical wear: The NAND cells degraded, and the controller’s translation layer crashed.
- Vendor/Product ID: Change nothing unless you know original values.
- Flash Type: Critical! Click "Auto Detect" or "Enhanced Detect." The tool might read the FA04 mode and suggest
H27UCG8T2ATRorMT29Fxxbased on NAND ID. If it shows "Unknown Flash," you need a different MPTool version. - Partition Setting: Set "Mode" to Normal or Removable. Do NOT select "Fixed" again (ironic, given the error says "Fixed").
- Format: Check "Low Level Format" and uncheck "Quick Format."
When this occurs, the drive may appear as "Generic USB Hub," "Unknown Device," or show "No Media" in Disk Management. Phase 1: Identifying Your Hardware
Visit a database of production tools like the Alcor Micro Downloads on USBDev.