8 MB BIOS binary for the ASUS X554LD main board, also listed as fitting the X555LD, revision 3.1. These models share a mainboard design, which is why one dump may be labelled for both. Typical use is reflashing the SPI chip with a programmer when the laptop powers on with no image or after corrupted firmware. Check that the board label reads rev 3.1 and the chip capacity is 8 MB, back up the original chip contents, and verify the written image with a read-back comparison.
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 →