BIOS image for the ASUS Q551LN laptop mainboard, revision 2.1. The 3.54 MB RAR is used to rewrite the SPI flash when a board shows no display, fails to post or has corrupted firmware after an update. Programming is usually done with a CH341A or similar programmer and a clip on the chip. Save a copy of the original contents before writing so you can restore serial and identity data, check that the board revision on the PCB reads 2.1, and confirm the image fits 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 .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 →