Alcor Micro Unknown Fa00 F W Fa04 ((full)) Jun 2026

The Alcor engine left low-level filter drivers active in the system.

If the AlcorMP software gives you a "Bad Flash" error, an "ECC Error," or fails to recognize the drive entirely, the issue is physical. The controller cannot wake up the NAND chip because a pin is grounded or disconnected.

In the context of hardware detection tools (like lsusb on Linux or Windows Device Manager), the string FA00 is a crucial part of the USB Vendor ID (VID) and Product ID (PID) pair. alcor micro unknown fa00 f w fa04

This cryptic string is generated by diagnostic tools like ChipGenius and provides a detailed snapshot of your USB flash drive's controller and memory status. Here’s a breakdown of what each part means:

Your drive should appear in one of the boxes, likely highlighted in yellow or red, showing the Unknown FA00 or F/W FA04 error. The Alcor engine left low-level filter drivers active

Almost certainly .

The identifier "" refers to a USB flash drive with a corrupted or unrecognized Alcor Micro controller. The code [FA00] typically corresponds to a specific controller model family, most commonly the AU6989SN-TA (also known as AU6989SNCS-TA). Technical Summary In the context of hardware detection tools (like

Using a precision needle or a small flathead screwdriver, gently bridge (short-circuit) two data pins on the (usually pins 29 and 30, counting from the dot indicator) while plugging the USB into the computer.

The device is manufactured by , a prominent Taiwanese IC design house specializing in USB flash drive controllers and card reader controllers. The string indicates a generic controller firmware state, often associated with the AU6989 or similar USB 2.0/3.0 flash controller families.