To repair or "reflash" a USB drive using the Phison PS2251-07 (also known as

Title: The Ultimate Guide: Phison PS2251-07 (PS2307) MPTOOL Installation & First-Time Flash

There is no "installer" in the traditional sense; these are portable factory tools.

firmware files (Burner and Firmware) that correspond exactly to your NAND flash type (e.g., Toshiba, Hynix). Run as Admin : Always launch the MPALL utility with Administrative Privileges