This tool is the official Mass Production Tool released by for maintaining, repairing, and configuring their USB flash drive controller chips. Product Profile: SMI MPTool (SM32X / SM34X) What is it? A specialized Windows-based utility used to factory reset, flash firmware, and configure USB flash drives utilizing Silicon Motion controller chips (specifically the SM32x and SM34x series, such as SM3257, SM3267, SM3268, etc.). They Are Billions Calliope Build Access