Tested firmware for a Dell laptop built on Compal motherboard LA-J091P, revision 1. The name does not mention the exact Dell model, so the board number is the key identifier. The 7.77 MB RAR archive contains the BIOS image for the SPI flash. Compal's LA-xxxxP codes are printed on the PCB near the edge or under the memory slots; confirm the number and revision there. Read and save the current chip before programming with an external tool, and check the extracted file size against the 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 @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 →