Dump of the BIOS for the ASUS K455L using mainboard X455LD revision 2.1, in a 3.34 MB RAR archive. The token 25L6473 most likely refers to a Macronix 25L6473 SPI flash, which holds 64 Mbit, or 8 MB. Technicians program this chip with a CH341A or similar tool to recover from failed updates or corrupted firmware. Revision 2.1 differs from other X455LD revisions, so compare the PCB marking. Read and save the original contents first and verify the extracted image matches the chip 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 @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →