BIOS image, 8 MB, for the ASUS X556U laptop, labelled Unlocked, which usually means password or security locks have been removed, though the name does not say which. No board number or BIOS version is given, so check your board revision before flashing. The file size matches a 64 Mbit SPI flash chip. Back up the original chip with a programmer first, since it carries the serial number and system data, and verify the write after flashing.
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 @cidschematicandboardviewofficial. 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 →