Search for your specific controller part number on specialized database sites like USBDev.ru or FlashBoot. Reflash the Firmware: Open the MPTool (often requires running as Administrator).
Many websites offering “NAND USB2Disk drivers” are adware traps or distribute malware. Do not download from driver-download.net, driverpacks.net, or similar untrusted sites. nand usb2disk usb device driver download