Raw 4 MB BIN image whose name points to an ASUS K43LY notebook mainboard, revision 3.1, though no brand is stated beyond the model code. The 4 MB size corresponds to a 32 Mbit SPI flash chip, so the image is meant to be written directly with a programmer rather than through a vendor updater. Technicians use dumps like this to revive a laptop that shows no display or will not boot after a bad flash. Back up the existing chip first, check the revision on the board, and confirm the chip capacity matches the file size..
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 @laptopbios21. 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 →