After saving your configuration, return to the main menu. The software should detect your USB drive. Click the "Start" button to begin the process. This can take several minutes, and you must not interrupt it or disconnect the drive until completion. Once finished, close the tool, safely remove the USB drive, and reinsert it to allow the operating system to recognize it.
Includes the MPParamEdit_F1.exe sub-utility, which allows for custom VID/PID assignment, serial number editing, and LED behavior adjustment. Using the Tool Safely phison mpall v3720b ps2251 flashboot repack
Complete Guide to Phison MPALL v3.72.0B (PS2251) FlashBoot Repack After saving your configuration, return to the main menu
Mass production tools are highly powerful. They are primarily used for three scenarios: This can take several minutes, and you must
This handbook covers the Phison ecosystem relevant to USB flash controller PS2251 family devices, using the MPALL tool (often seen as “MPALL V3720B” builds) and workflows for creating and applying “FlashBoot” repacks—custom bundled firmware/loader packages used to repair, reconfigure, or restore USB flash drives and eMMC/SSD controllers. It explains architecture, tools, common tasks, troubleshooting, safety practices, and practical step-by-step procedures for repacking and flashing.