BIOS image of 4 MB for the Toshiba Satellite C850, model A986, from the PLF main board. No revision or graphics variant is given, so compare it with your PCB marking before use. The binary is meant for direct programming of the SPI flash chip with a hardware programmer when the laptop fails to post or has corrupted firmware. Confirm the chip capacity is 4 MB so the image fits, and dump the existing chip first to preserve serial and system data.
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 .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 →