BIOS dump for the ASUS K53SM laptop, labelled OK by the person who saved it, implying it worked on a real board. The 4 MB size corresponds to a 32 Mbit SPI flash. No revision or GPU variant is stated, so confirm whether the target board is discrete or integrated graphics before use. Read and archive the existing chip, program with a hardware programmer, and check that the PCB revision matches the board this image originally came from.
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 @abgm_manutencao_bios. 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 →