Toshiba firmware archive tagged FAEPSY4 and A4097A; these appear to be board or project codes, but the name does not reveal the laptop model or revision, so confirm them against the motherboard silkscreen. The RAR is 3.35 MB and is intended for restoring the BIOS chip with a hardware programmer when a notebook shows no display or will not boot after a failed update. Read and save the current chip first, check the chip marking for capacity, and only write an image whose size matches 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 @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 →