Firmware image for an ASUS K52F notebook, marked OK, meaning it was reported as working when saved. The board revision is not stated, so compare the PCB markings with what you expect before writing. At 4 MB the raw dump matches a 32 Mbit SPI BIOS chip and can be flashed with a hardware programmer when the machine fails to POST or the existing firmware is corrupted. Always read the original chip twice, compare the two reads, and keep a backup before erasing and programming the replacement image.
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 @biosbigarchives. 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 →