Original main BIOS read from a Samsung device, 4 MB in .bin format. The word main suggests the system BIOS chip rather than an EC or other secondary flash, but no model or board number is given. A 4 MB image fits a 32 Mbit SPI chip. Before writing it with a programmer, confirm the platform by checking the BA41 code on the board and the version strings in the file. Save a full backup of the existing chip first, so the machine can be returned to its prior state 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 @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 →