Toshiba firmware image named ARACL500.BIN, an 8 MB raw binary. The name does not give a model or board number, so the target device has to be confirmed from other sources, for example the BIOS file name used by Toshiba update packages or the part label on the board. An 8 MB raw file matches a 64 Mbit SPI flash chip, and you can write it with a hardware programmer. Check the chip capacity first, and dump and keep the current contents before erasing anything so you can recover if the image turns out to be wrong.
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 @biosarchive2dollarpaypal. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →