Do not guess. Many tools designed for the AU6989SN (without GTC) will brick your drive. You must verify the chip ID.
: Because Alcor uses many revisions, the software version must be chosen based on the specific Flash ID (FID) alcor micro au6989sn-gtc software
Approximately 78% for logical failures (corrupt partition table, wrong capacity). Approximately 12% for physical NAND failure (cracked die, water damage). Do not guess
Have you successfully recovered an AU6989SN-GTC drive? Which software version worked for you? Let us know in the comments below (or consult the r/USBRepair community for advanced firmware hex editing). alcor micro au6989sn-gtc software