ASUS K52F BIOS binary, 4 MB, marked OK to suggest a dump tested as working. No board revision or version is given, so check the mainboard revision printed on the PCB before use. The 4 MB size matches a 32 Mbit SPI flash, and the file is written with a programmer such as a CH341A to restore a board with no POST or corrupt firmware. Read the existing chip first and keep that copy, as it may contain board-specific serial and MAC data worth transferring.
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 .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 →