4.00 MB raw BIOS dump labelled K52F, a model in the ASUS K52 laptop series, followed by a lone b whose meaning is not explained. The size suits a 32 Mbit SPI flash chip, and the file can be written directly with a CH341A, RT809 or similar programmer. The name gives no board revision, so read the PCB marking and, if possible, compare against other K52F dumps. Save the existing chip contents first, as they include serial number and MAC data, and verify the write 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 @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 →