Alcor Micro Unknown Fa00 F W Fa04 (2026)
Use a fine sewing needle or precision tweezers to bridge these data pins together.
This article will serve as the ultimate technical guide to understanding, diagnosing, and potentially fixing the error. We will explore what Alcor Micro is, what those hexadecimal codes mean, why your computer fails to recognize the hardware, and the step-by-step solutions—from driver fixes to low-level controller recovery.
Remove the needle 2 seconds after plugging it in. Your operating system will beep, and AlcorMP will read a generic test state, allowing you to run a fresh firmware flash cycle via .
Frequently accompanied by a missing Flash ID (FID), meaning the controller is currently blocked from talking to the physical NAND flash memory chips. Why Is Your Flash Drive Showing This Error? alcor micro unknown fa00 f w fa04
Your drive should appear in one of the boxes, likely highlighted in yellow or red, showing the Unknown FA00 or F/W FA04 error.
Keep the drive connected until the display box turns bright green, indicating success. If a red text error appears, note the error hex code (e.g., 0xE50B ) to find a matching version of the software on USBDev Support Forums . Phase 5: Hardware Test-Mode (The Last Resort)
Description: [D:]USB Mass Storage Device(Generic USB F. Device Type: Mass Storage Device. Protocal Version: USB 2.00. [Link] 1/13. Alcor [Fa00] Aka Au6989sn-Ta - Usb Flash Drive - Scribd Use a fine sewing needle or precision tweezers
: The hardcoded hardware code name or ASIC ID of the controller, which usually maps to the AU6989SN line.
Your firmware version doesn't support the specific flash memory layout; try a different MPTool version.
The mass production software detects an Alcor controller but cannot map the exact silicon revision. The code FA00 or 0xFA00 explicitly indicates a variant of the AU6989SN series (such as AU6989SN-TA or AU6989SNCS-TA). Remove the needle 2 seconds after plugging it in
The hardware error string indicates that your flash drive's controller chip has fallen into a bricked, unreadable, or write-protected state. This specific status code occurs when hardware diagnostic tools like ChipGenius read an Alcor Micro controller (often from the AU6989SN or AU6989SN-TA families) that cannot properly communicate with its underlying NAND flash memory.
While holding the short, plug the drive into your computer's USB port.
