Because Alcor Micro releases many specific versions of their MP Tool for different flash memory chips, the exact version you need depends on your drive's Primary Tool Site USBDev.ru (Alcor Micro Section)
When complete, the device window will show a and the word "OK" . Close the tool, unplug the USB drive, wait 10 seconds, and plug it back in. Windows will prompt you to format the drive (if the tool didn't do so). Use default settings. alcor micro usb repair tool au6989sngtc au6998sn link