RAR archive of firmware for a board labelled 6-77-NL50LUA0-N02, with V2T287-1 added as a further identifier. The 6-77 prefix is the style Clevo uses for its barebone and board part numbers, and several brands sell laptops on that chassis. At 14.1 MB the archive probably holds more than one file, possibly a BIOS region plus extras, so open it and read each image's size before deciding which one to flash. Match the board marking first, dump the existing SPI chip as a backup, and only then program with a hardware programmer.
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 →