How to get every FFS on any FujiFilm Camera :
Dowload : exiftool -
https://exiftool.org/On windows add the exe in your PATH.
Little .bat script :
exiftool.exe -Model=X-T4 *.RAF
DEL /F *original
Also add the .bat in your PATH.
Open a prompt-shell where your .RAF files are :
[yourscript].bat
Now all your RAF files have X-T4 set as the model, all FFS should be unlocked on CaptureOne (for exemple).