Flashing firmware is done at your own risk. If the process is interrupted, it can permanently "brick" the SSD.
: Used for manually generating a firmware executive file (fw.exe) tailored to a specific drive's NAND type. PC-3000 SSD Phison Utility ps3111sb firmware upgrade tool install
He had found the ps3111sb firmware upgrade tool install package buried on a forgotten FTP server in Taiwan. It was a miracle the link was even active; the file timestamp read 2011. He double-clicked the setup.exe . Flashing firmware is done at your own risk