Firmware dump for the Sony MBX-244 motherboard, marked S0202-1 and 48.4KY02.011, stored in a 963 KB RAR archive. The same identifiers appear on a TUCANA-BR labelled package, so this looks like an alternate copy of the image for that board, though the name itself does not say so. Technicians write such a file to the BIOS SPI chip with a programmer like the CH341A or RT809 to revive a board that powers on without display. Compare the PCB markings with the name, keep a backup of the original chip and verify after writing.
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 @biosarchive. 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 →