| Error Code | Meaning | Solution | |------------|---------|----------| | | Bad block count too high | Force erase; if persists, NAND is dying. | | 0x12 | Firmware download failed | Reinstall driver; disable antivirus. | | 0x28 | Controller not responding | Short reset pins on the PCB (Google for “SMI controller reset pinout”). | | 0x38 | DBF missing for NAND | Edit SM25xx.ini to add custom NAND parameters. | | 0x99 | Timeout during ISP write | Use a different USB port; avoid USB hubs. |
: It gained a reputation on technical forums (like USBDev.ru and FlashBoot.ru) as the "universal" fix for 2014-2016 era SMI drives that were previously considered electronic waste. Essential Warnings smi mptool v2536 v7 updated
: If the program fails to read the USB completely, the controller may be locked in an unstable sleep loop. Carefully research how to bridge the I/O pins to force Test Mode prior to starting the application. | Error Code | Meaning | Solution |
Before launching the tool, verify that your USB flash drive utilizes a compatible SMI chip. The v2.5.36 v7 suite is heavily optimized for various legacy and widely-deployed Silicon Motion controllers. Controller Series Common Applications Compatibility Status Budget USB 2.0 drives (Kingston, Transcend, Silicon Power) Native, High Stability SM3255AA / SM3255AB Older USB 2.0 promotional and retail media Native Support SM3267AB / SM3261AB Early USB 3.0 ultra-speed variants Restricted (TSOP memory layouts only) SM3211 / SM324 / SM325 Legacy platforms (Corsair, Samsung, LG, GoodRam) Partial / Sub-version dependent | | 0x38 | DBF missing for NAND | Edit SM25xx
Disclaimer: Using MPTools can permanently damage the drive if the wrong settings are chosen. It will erase all data on the drive.