BIOS image for the Toshiba Satellite C850D, model variant C4S, provided as a 2.00 MB binary for a 16 Mbit SPI flash chip. The D suffix generally indicates an AMD-based version of the C850 line, so confirm the board matches before use. No board number or revision is stated in the name. Technicians program such files with an external programmer to revive a no-boot board; always back up the original chip and confirm the size matches the 2 MB image.
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 @bios_laptop. 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 →