If the update failed halfway (status red, drive not recognized by Windows), you have a brick. Here is the factory recovery procedure:
The PS2251-07 is a high-performance USB 3.1 Gen 1 controller commonly found in OEM (Original Equipment Manufacturer) flash drives, memory sticks, and MP3 players. phison ps225107ps2307 upd
This process uses MPALL (Mass Production Tool). The term "mass production" is what Phison calls firmware flashing. If the update failed halfway (status red, drive
Warning: Many downloads contain adware. Scan all .exe files with VirusTotal before running. The term "mass production" is what Phison calls
Updating the firmware on a Phison PS2251-07 controller is not a standard end-user process (like updating a motherboard BIOS). It requires specialized vendor tools.
All data on the flash drive will be permanently erased. There is no way to preserve data during a full firmware update.