BIOS dump for the ASUS K455L, labelled in the name as the X455LD motherboard at revision 2.1, with the code 25L6473 also noted, which most likely refers to the Macronix MX25L6473 SPI flash. The 8 MB image matches a 64 Mbit chip. Technicians write such a dump with a CH341A or similar programmer when a board is dead or stuck after a failed update. Confirm that the PCB silkscreen shows X455LD rev 2.1, and save a read of the original chip first so its serial and LAN data can be restored.
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 @biosfilebins. 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 →