For flash drives running on Silicon Motion controllers, the is the official mass production software used to flash firmware, partition storage, and revive completely bricked USB drives. What is SMI MPTool?
The SM34x series (SM3350, SM3450) bridges the gap between USB and memory cards. These controllers are often found in "2-in-1" flash drives or industrial storage. For flash drives running on Silicon Motion controllers,
This guide outlines how to use the SMI Mass Production Tool (MPTool) controller series These controllers are often found in "2-in-1" flash
If the USB drive is completely dead and software tools cannot detect it, you must carefully split open the plastic casing. Look at the square microchip on the circuit board with a magnifying glass to read the physical laser etchings (e.g., SM3271AC). Step-by-Step Guide: Repairing a USB Drive with SMI MPTool Step-by-Step Guide: Repairing a USB Drive with SMI
Select the default .ini file provided with the tool.
Open the configuration file (usually default to default.ini ).
Before downloading any flashing software, you must verify that your USB drive actually uses an or SM34x controller. Flashing the wrong firmware will permanently destroy (brick) the hardware.