SMI MPTool (Silicon Motion Mass Production Tool) is a professional utility used to repair, format, or re-partition USB flash drives utilizing SMI controllers (e.g., SM32x, SM34x). It is particularly effective for fixing "No Media," "Write Protected," or "Disk is full" errors that standard formatting cannot resolve. 1. Preparation and Identification
Right-click sm32_x64.exe or sm32_x86.exe → Run as Admin.
If you are mass‑producing multiple drives, test your configuration on a single drive before processing the entire batch. smi mptool sm32x sm34x smi mass production tool best
Because NAND support evolves rapidly, it is a good practice to maintain a collection of different MPTool versions. Websites such as usbdev.ru and flashinfo.top offer archives of many versions.
The program should detect your drive, usually labeled as "Insert." Click the button. SMI MPTool (Silicon Motion Mass Production Tool) is
Always look for an MPTool archive that explicitly lists your controller part number and supports your NAND Flash ID in its database. Step-by-Step Guide to Repairing a USB with SMI MPTool
Although the SM34x series uses MPTool versions that are largely backward-compatible , it is critical to match your tool to the specific controller model. Using an older tool for a newer controller may result in failure to detect the drive, inability to find a suitable firmware file, or even corruption of the controller's bootloader. Preparation and Identification Right-click sm32_x64
Select the default configuration file ( default.ini ) when prompted to load settings. Step 3: Optimize Formatting Parameters
Click the button. Your drive should appear in one of the numbered grid boxes. 2. Configure Settings Click on the Setting (O) button.