Firmware archive labelled for the ASUS K556UF laptop, 3.69 MB in RAR format; the name gives no board revision or version number. The archive should be extracted with WinRAR or 7-Zip to reveal the image file inside. Technicians use such dumps to recover a board with corrupted BIOS by reprogramming the SPI chip. Check the motherboard revision printed on the PCB against the source of the dump, back up the original chip, and verify the image matches the flash capacity before writing.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →