BIOS firmware covering the G51J and G60JX gaming laptops, board revision 2.0, likely ASUS based on the model names. The RAR archive is 4.04 MB and may hold images for both models, so open it to pick the right one. Technicians write such images to the SPI flash with a programmer when a board fails to boot after a bad update. Check the model and revision on the PCB, back up the existing chip, and confirm the file size matches the flash chip.
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 →