The NAND flash memory inside the device is damaged or partitioned incorrectly.
Alcor AU6989SN-TA Firmware Issues | PDF | Usb Flash Drive - Scribd
When a drive reports this specific error, it is usually "bricked"—it may show up in Device Manager but cannot be formatted by Windows. Recovery involves using specialized "Mass Production" (MP) tools specifically designed for Alcor chips, such as Identification
If the tool returns an error like "Too many bad blocks" or "Hardware Error," the physical NAND chip may be permanently damaged. Test Mode:
If the tool doesn't see your drive, try running LoadDriver.exe first to install the necessary low-level drivers. alcor micro unknown fa00 - f w 3613
The "FA00" code is an Alcor-specific error signature. It indicates a critical failure during the initialization stage. The controller cannot read the flash configuration parameters (the parameters that tell it how many memory chips are present, their storage size, and their voltage requirements).
: A broken trace or cold solder joint between the controller and the flash chip can lead to a failure to read the FID, triggering the "Unknown" status. Potential Recovery Steps
Sometimes, this string appears in Linux dmesg or Windows Device Manager because the generic USBSTOR driver doesn't know how to handshake with this specific firmware revision. The drive might be physically fine, but the OS just doesn't speak its language.
By following these steps, you should be able to resolve the error and regain functionality of your card reader. The NAND flash memory inside the device is
~40%. If this fails, proceed.
Select Full Scan4 or Low-Level Format to rewrite bad blocks from scratch.
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(A long hexadecimal sequence representing your NAND memory chip, e.g., EC3A98A3) Step 2: Download the Correct AlcorMP Tool Test Mode: If the tool doesn't see your
Alcor Micro Corp. is a major supplier of single-chip USB controllers. Based in Taipei, Taiwan, with an R&D center in Santa Clara, CA, the company has focused for decades on delivering single-chip solutions for computer peripherals and the consumer electronics market. Their portfolio includes USB hubs, card readers, and, most critically for this article, flash disk controllers. Alcor Micro chips are widely used due to their cost-effectiveness and integration of technologies like voltage regulation and high-speed signal interfaces directly onto the die. However, their proprietary nature sometimes leads to identification issues with generic detection software.
: Set to AutoECC or manual value 15 . This provides the engine with error-correction overhead to bypass bad blocks.
Click and then Save to force the tool to monitor that specific hardware address. 3. Low-Level Formatting If the drive is detected but returns errors:
The NAND flash chip is wearing out. You can try setting the "Scan Level" to a deeper cycle in the AlcorMP settings to "wall off" the dead sectors.