ASUS X550EPF BIOS image, with version or revision tag 1303, in a 1.72 MB ZIP archive. Firmware like this is written to the SPI flash chip with an external programmer when the board is stuck after a failed update or shows no display. The name does not give the motherboard revision, so check the board marking on your PCB and the chip capacity first. Read and keep the original chip contents, and confirm that the image size matches the flash 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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →