Hello @Tomasz_Raczynski,
As indicated on the previous threads, tIf what you need is any legacy Skorpio X3 firmware,
- open and register to https://partnernet.datalogic.com/
- follow: Technical -> Software Download
- search for “Skorpio X3 firmware”
The resulting page return all the available firmware download for Skorpio X3.
What are you precisely looking for?
Simone