BIOS package for the Dell Inspiron 3443, 3543 and 5749 laptops, given as a 4.77 MB RAR. These models are listed together in the name, which suggests a shared or closely related firmware image, but no mainboard number or BIOS version is stated. Open the archive and compare its contents with the board you are servicing. Dell dumps are usually programmed directly into the SPI flash when the machine is bricked. Keep a copy of the original chip, as it holds the service tag. Also verify that the image size equals the 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 @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 →