: Likely AU6989SN-TA or a variant within the AU6989SN series.
In some cases, Windows installs a generic USB mass storage driver that conflicts with Alcor’s specific needs. This is less common on Windows 10/11 but still occurs on older systems or after a major OS update.
Select Full Scan4 or Low Level Format . This forces the software to map out bad memory blocks rather than failing immediately.
Bus 001 Device 003: ID 058f:fa00 Alcor Micro Corp. FA00 F W FA04
Locate the (the large rectangular chip with many small metallic pins on its side, distinct from the square Alcor controller chip).
Once complete, the square box will turn and display an "OK" status. If it turns Red , take note of the specific Alcor error code (e.g., Error 5040: Too many bad blocks ) to adjust your ECC tolerance settings. Troubleshooting Common Flashing Failures Root Cause Error 30100: No device plug
Download the latest version of or Flash Drive Information Extractor (FDIE) from a trusted resource like USBDev.ru .
If the USB drive contains irreplaceable data, stop all DIY attempts and evaluate these options:
Always look for a software version that matches your controller part number and the release timeframe of your USB drive. These tools can be safely found on specialized recovery repositories like USBDev. Phase 3: The Flashing and Recovery Process
The designation with firmware FA04 typically refers to a specific state of a USB flash drive controller, often identified by diagnostic tools like ChipGenius when the device is corrupted or running a generic firmware revision. Technical Identification The FA00 tag is frequently an alias for the Alcor AU6989SN-TA or AU6989SNCS-TA