: Your computer can talk to the USB interface, but the USB interface cannot communicate with the underlying memory storage. Consequently, the drive often shows up as "No Media," "0 Bytes," or "Write Protected". Primary Causes of the FA00 Error
This is likely a :
Look for the and PID (Product ID) . For generic Alcor controllers, this is typically VID = 058F and PID = 1234 or 6387 . alcor micro unknown fa00 f w fa04 top
Before jumping into software utilities, it is important to understand what the data logs are communicating:
The "FA00" part of this string is a crucial code, but it doesn't point to a single chip model. Instead, it's a family identifier primarily associated with Alcor's widely-used of controllers. This means that a drive showing "FA00" is almost certainly built around an AU6989SN controller, a chip so prevalent that it's found in countless generic and branded USB 2.0 flash drives sold over the last decade. : Your computer can talk to the USB
Scroll down to the bottom log window and look for the (e.g., AD DE 94 EB 74 44 ).
Disclaimer: This paper is a technical analysis based on known hardware specifications. Hardware revisions may vary, and attempting to reflash firmware using MP Tools carries a risk of permanent device failure. For generic Alcor controllers, this is typically VID
Insert the faulty USB drive into a native on your computer. Launch ChipGenius as an Administrator.
This is the most interesting part of the string. In hardware design, memory chips often come in "stacks." You might have a controller chip with a memory die stacked on top of it to save space.
: The drive is recognized by the system but shows "No Media" or "Unknown" in AlcorMP. Flash ID is not being detected.
: If software tools repeatedly fail to identify a Flash ID (showing 0xFF, 0xFF ), the drive likely has physical damage to the NAND chip or controller.