SMI MPTool versions are named by year. For SM3265AC, you typically need versions released between 2014 and 2018.
This is the counterintuitive exclusive feature: It’s slower, but cooler. sm3265ac exclusive
The SMI SM3265AC is a popular USB 3.0/3.1 flash drive controller chip manufactured by Silicon Motion (SMI). It is commonly found in USB drive repair and data recovery circles because it is robust and widely used in "no-name" generic flash drives as well as branded ones (like Transcend, Kingfast, etc.). SMI MPTool versions are named by year
If you are seeing errors like "Please Insert Disk Into Removable Disk", wrong capacity, or the drive is write-protected, this guide will walk you using the SMI MPTool to factory reset (re-flash) the controller. or the drive is write-protected