Firmware archive whose name points to a motherboard identified as VG20SQ / VG20CQ, revision 2.1, marked as tested. No brand is given, so the exact laptop model has to be confirmed from the board itself. The RAR file is 3.38 MB and needs unpacking before use. Such dumps are written to the SPI flash with an external programmer to revive a board that will not post or shows a corrupted BIOS. Match the silkscreen and revision exactly, keep a backup of the original chip, and check that image size equals 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 @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 →