Firmware archive for the S551LB, an ASUS VivoBook model, compressed as a 3.27 MB ZIP file; the name gives no board revision or version. The LB variant typically differs from others in the series by its graphics configuration, so it should not be swapped with the S551LA image without checking. Technicians flash such dumps onto the SPI BIOS chip with a programmer to revive a board. Back up the existing chip, confirm the model and PCB revision, and verify the image size equals the chip capacity.
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 →