| Error Code | Description & Meaning | | :--- | :--- | | | Pretest Fail. The capacity reported by the flash chip doesn't match expected values. Often due to severe corruption or incorrect tool version. | | 0x04 | Download ISP Fail. The tool couldn't load the ISP firmware. The most common cause is using the wrong MPtool for your controller chip. | | 0x08 | Device Write Protect. The drive has been physically locked. This often happens with SSDs but can be a hardware issue with USB drives. | | 0x11 | Bad block over Setting. The number of bad blocks on the flash chip has exceeded the limit set in the tool. The chip is likely beyond repair. | | Flash connectivity test fail (22)/(08.12) | The tool failed the initial communication test with the flash memory chip. | | Did not find the flash's id in database | The Flash ID of your memory chip is not listed in the tool's database. You need to try a different or newer version of MPtool that includes support for that chip. |
Extract the downloaded archive and run the executable (typically sm32Xtest.exe ).
The is a proprietary software suite designed for manufacturing Silicon Motion USB flash drives. Manufacturers use it to define controller parameters, set flash memory settings, and burn the initial firmware into the flash controller. smi mptool sm32x sm34x smi mass production tool
When prompted for a password, leave it blank or enter 320 or 1111 to unlock the engineering panel.
When the tool says "Format," it does not mean quick format. It means obliterate and rebuild . Use with respect. | Error Code | Description & Meaning |
The SMI Mass Production Tool, commonly known as , is a powerful, low-level utility developed by Silicon Motion, Inc. (SMI). It's the industry-standard software used in the manufacturing process to initially program, test, and configure USB flash drives and other storage devices that use SMI controllers. For the average user or technician, the MPTool is a vital piece of software for rescuing "bricked" or malfunctioning USB drives, creating bootable USB drives with a CD-ROM partition, and customizing or restoring drives to a factory-fresh state.
Select the default configuration file (.ini) provided in the folder. | | 0x04 | Download ISP Fail
Using the wrong version (e.g., SM32x tool on an SM34xx controller) may not recognize the drive or could corrupt it.