Once finished, unplug the USB drive and plug it back in. It should now be functional and display the correct capacity. Troubleshooting MPALL Errors

At its core, Phison MPall is not a user-friendly utility with a glossy interface. It is a factory-grade tool, leaked or repurposed for consumer use, designed to communicate directly with Phison-branded controller chips. Version 5.03.0a-dl07 is a specific snapshot in time, likely compiled to support a particular family of NAND flash controllers and memory dies. The “dl07” designation hints at a build intended for a specific production line or a patch for a specific error code. To a technician, this version number is a password; to a layperson, it is an intimidating string of alphanumeric characters. The tool’s primary function is to perform a "mass production" format—a low-level format that rewrites the firmware, reallocates bad blocks on the NAND chip, and resets the controller’s state. It is the equivalent of performing brain surgery on a storage device.

A tool used in factories to program and partition USB controllers during production.