Tested BIOS image for the ASUS X553MA notebook, mainboard revision 2.0, archived as RAR at about 3.2 MB. A known-working dump like this is used to bring back a laptop with corrupted firmware, a no-display fault or a boot loop. Write it to the SPI flash using an external programmer. Save the original chip contents before writing, since they hold the serial and other unit-specific data. Also confirm the revision printed on the PCB and that the image size suits the chip.
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 →