BIOS firmware for the ASUS K55VD laptop, board revision 3.1, marked as tested. ASUS prints the model and revision on the mainboard, so confirm REV 3.1 on your PCB before relying on this dump. Technicians use such files to reprogram the SPI chip with an external programmer when the machine is bricked by a failed update or corrupted firmware. Unpack the RAR, inspect its contents, and read and save the original chip before writing. The image size must match the flash capacity, or the programmer will reject it or write an incomplete image.
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 @generalbios. 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 →