If you want a simple storage drive, leave "Public Partition Only" selected. If making a bootable drive, set the "CD-ROM" size and point it to your .iso file.
You must match your exact controller model with the correct version of SMI MPTool. Using the wrong version can permanently brick your device.
Insert your corrupted USB drive into a USB 2.0 port (preferred for stability). smi mptool sm32x sm34x smi mass production tool
This tool is the official Mass Production Tool released by for maintaining, repairing, and configuring their USB flash drive controller chips.
The is a firmware flashing and configuration utility designed by Silicon Motion, Inc. (SMI) for its USB flash drive controllers. It is used primarily in manufacturing and repair environments to: If you want a simple storage drive, leave
: You can change the VID (Vendor ID) and PID (Product ID) , or even the manufacturer strings to make a generic drive look like a custom branded one.
Run a low-level erase using the "Erase ALL" command inside the setting menu before flashing. Advanced Feature: Creating a Virtual CD-ROM Partition Using the wrong version can permanently brick your device
Versions of SMI MPTool are often bundled with specific firmware sets. For example, a version named SMI MPTool V2.03.37 v9 [SM3255ENA1] is tailored for the SM3255 series. Configure Settings:
: Testing and configuring up to 16 USB devices simultaneously in a production environment. Supported Controllers
Load the default configuration file (usually named default.ini ). Step 6: Tweaking Critical Settings
Sometimes, standard SMI MPTool versions fail, particularly with low-quality, cheap flash memory. Best for high-quality, stable flash memory.