Restore plextor 504a firmware after patched FW

Hi all

I flashed my plextor 504a with patched NEC 1100 firmware and i forgot to backup the original plextor 1.02 FW. :sad:
The problem is that the file from the plextor site doesn’t recognize the drive.
I googled and searched everywhere but can’t find a “bin” file.

Who knows how to get such a file so i can reverse to plextor FW ?