ASUS X556UF BIOS archive with an F1 suffix in the name, compressed to 3.58 MB in RAR format. The board revision is not stated, so check the PCB before use. Unpack it and inspect the image to see whether it is a full flash dump suitable for writing with a CH341A or similar programmer. Images for this family usually carry board-specific data like the serial number, so read and back up the original chip first. Confirm the image size matches the chip capacity, because a mismatched file will not fit.
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 →