If the tool does not see your USB drive, the controller firmware may be completely crashed, preventing it from starting up normally. You will need to manually invoke (short-circuiting hardware pinouts). Carefully open the plastic housing of the USB drive, locate the physical controller chip, and use a needle or precision tweezers to bridge the input/output data pins on the NAND chip while inserting the drive into the USB port. This forces the controller into a safe recovery mode, allowing the MPTool to detect it. SMI SM32X Mass Production Tool Guide | PDF | Usb - Scribd
Overwrites identifying values like Vendor IDs (VID), Product IDs (PID), serial strings, and text labels. Phase 1: Identifying the Controller Model smi mptool sm32x sm34x smi mass production tool full
This includes widely deployed USB 2.0 and USB 3.0 controllers such as the SM3257, SM3267, SM3268, and SM3271. These chips are commonly found in mainstream consumer drives from brands like Kingston, Transcend, and Silicon Power. If the tool does not see your USB