Configure the parameters using the data you gathered from your Chip Extractor tool: Value / Action Controller Select your exact chip model (e.g., PS2251-07 ) FC1 - FC2 FC1 - FC2 Search Select 0xFF or check the box auto-detecting Flash Type Flash Type Flash Manufacturer Match your ID (e.g., Toshiba, SanDisk, Micron) Firmware Check this box (In-System Programming) Firmware Burner File
How to Fix Your USB with Phison MPALL v3.72.0B Is your USB drive acting like a paperweight? If your flash drive uses a Phison PS2251
Disclaimer: Firmware flashing carries risks. Improper use can render USB drives permanently unusable. phison mpall v3720b ps2251 flashboot repack
Click the button on the right side of the interface. Your drive should appear in one of the 16 grid boxes, marked by a green or yellow highlighted text line.
: A library file that allows the software to recognize specific NAND flash memory timings. Step-by-Step Recovery Guide Configure the parameters using the data you gathered
Your drive should appear in one of the numbered grid boxes with a white or green status.
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. Click the button on the right side of the interface
Insert your corrupted USB drive into a on your computer.
It is crucial to identify your drive's controller before using any tool. (for Windows) or Flash Drive Information Extractor are recommended utilities to get this information.
For those interested in creating a custom Flashboot Repack for the Phison MPall V3720B PS2251, here is a step-by-step guide: