Smi Mptool Sm32x Sm34x Smi Mass Production Tool Jun 2026

Select a configuration file (usually default.ini ) when asked.

If your USB flash drive is corrupted, showing a "Write Protected" error, displaying "No Media" in Disk Management, or refusing to format, it is likely experiencing firmware corruption. For flash drives built on controllers, the ultimate solution to revive, repair, or repartition the drive is the SMI MPTool (SM32x / SM34x) Mass Production Tool .

Flash the drive. Your computer will now recognize two distinct devices: a permanent virtual optical disc drive and a reusable flash drive.

Open the folder and run sm32Xmptool.exe (the exact name varies slightly by version). smi mptool sm32x sm34x smi mass production tool

The is an official, industrial-grade software suite developed by Silicon Motion (SMI) for manufacturing and servicing USB flash drives. "MPTool" stands for Mass Production Tool .

These are the most common controllers found in mainstream USB 2.0 and USB 3.0/3.1 flash drives from brands like Kingston, Transcend, SanDisk, and Silicon Power.

SM3255, SM3257, SM3267, SM3268, SM3269, SM3271, SM3281. Select a configuration file (usually default

Despite their architectural differences, both families share a common soul: a proprietary firmware and a factory initialization process governed exclusively by the MPTOOL.

Bypasses stubborn hardware and software write-protect loops.

: Testing and configuring up to 16 USB devices simultaneously in a production environment. Supported Controllers Flash the drive

You must confirm your drive uses an SM32x or SM34x controller before opening the tool. Download a hardware diagnostic utility such as or Flash Drive Information Extractor . Plug in your broken USB drive and run the diagnostic tool to note down the Chip Part Number (e.g., SM3268AB, SM3281) and the Flash ID code. Step 2: Download the Matching Tool Version

The tool offers a high degree of customization that is impossible with standard OS tools. Users can:

: Configures a portion of the USB drive to act as a virtual bootable CD-ROM drive (ISO flashing).

Here is a quick reference guide based on actual controller IDs (identified via ChipGenius):