Tool — Smi Mptool Sm32x Sm34x Smi Mass Production
When you download a folder named "SM32x_V2.5.xx_v8_Test," you will see several critical files. Do not delete them.
SMI MPTools are notorious for cryptic errors. Here is a translation table: smi mptool sm32x sm34x smi mass production tool
| Error Code | Meaning | Solution |
| --- | --- | --- |
| Bad Block over setting | Too many bad blocks; capacity reduced. | Lower the "Capacity Setting" tab value to 90% or 80%. The controller has remapped all usable space. |
| No ISP found / Download ISP fail | Wrong firmware or missing .bin file. | Ensure the ISP folder contains the correct firmware for your exact controller and NAND type. |
| Compare Fail | Verification mismatch (bad USB cable or unstable NAND). | Try a different USB port (preferably USB 2.0) and lower the DDR clock speed in Advanced tab. |
| Device Not Found | The tool cannot see the drive. | Short the drive's test points (recovery mode) or use "Debug" mode if the tool supports it. |
| Erase Fail | NAND cannot be erased. | The flash is likely dead or physically shorted. Replace the NAND or discard the drive. | When you download a folder named "SM32x_V2