ASUS X540NA BIOS image, version A.311 according to the name, as a raw 8.00 MB binary. Its size matches a 64 Mbit SPI flash chip, so it can be written directly with a CH341A or similar programmer when the laptop shows no display, powers off or loops after an update failure. Confirm the motherboard model on the PCB, since X540 boards come in several versions. Read and save the existing chip contents first, as they hold serial and other unit-specific data that a generic image may lack.
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 @bioshub. 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 →