BIOS dump for the ASUS X555LD, also listed as compatible with the X554L, on mainboard revision 3.6. These models share a common board design, which is why one image is named for both. Check that your PCB is marked with revision 3.6 before using it, since other revisions may need different firmware. Flash it to the SPI chip with a hardware programmer after making a backup read, which keeps board-specific data like serial and MAC, and confirm the image size matches the chip.
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 @biosfiles. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →