Firmware package for the MS-4500 Ferrari, a 4.41 MB RAR with no version or date given. It is the same size as the MS-6000 Ferrari archive, which hints at a shared platform, but only the contents can confirm that. The leading 1 in the name is probably an index number. Extract the archive and check whether it holds an update file or a full flash dump. Make sure the device really is an MS-4500 and back up the current software before you write anything to it.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @tamirkaran_chanel. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →