Raw 4 MB BIOS binary for a Samsung laptop, with the name reading R439 followed by OKKK, and no board number or revision given. The size corresponds to a 32 Mbit SPI flash chip, so it can be written directly with a hardware programmer such as a CH341A to recover a notebook with a corrupted BIOS. Before writing, read and store the existing chip contents, confirm the chip capacity matches 4 MB, and check that the laptop model on the label is the R439, since Samsung firmware is model-specific.
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 @biosbigarchives. 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 →