ASUS X540LJ BIOS dump for board revision 2.1.1, an 8.00 MB raw .bin image. No BIOS version is stated in the name. The size matches a 64 Mbit SPI flash chip, written with a programmer such as CH341A or RT809 when the notebook will not start. Since X540 family boards exist in several revisions, check the revision silkscreened on the PCB before relying on this file. Read and keep the original chip contents and verify the chip after programming.
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 →