ASUS X505ZA revision 2.0 firmware dump, labelled as a fully working BIOS and supplied as a 6.79 MB RAR. No processor variant is given, unlike other packages for this board, so compare which one suits your unit. Technicians write such an image to the SPI flash with a hardware programmer to fix boot failures caused by corrupted firmware. Verify the revision printed on the PCB, save the original chip contents first, and make sure the file size corresponds to the chip capacity before 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 .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 →