BIOS image for the Dell Latitude E5540, from a board marked VAW50 with the number written as ls-a103p in the name. That number appears to be the Compal LA-A103P motherboard, and the LS- prefix may point to a daughterboard instead. Compal is the ODM behind this Dell design, and VAW50 is the project code. The 6.55 MB RAR should be unpacked, and the image size checked against the SPI chip before flashing. Back up the original chip first, since it holds the service tag.
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 @biosdumpcomputer. 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 →