Dell BIOS firmware for Inspiron 5455, 5555 and 5755 laptops at revision A12, stored as a 2.46 MB RAR archive. These models share one BIOS across 14, 15 and 17 inch versions. Look inside the archive to determine whether it is an update utility or a raw dump ready for programming. When reflashing the SPI chip with a programmer, save the original contents first because Dell keeps service tag information in the flash, and check the image size against the capacity of the chip on the board.
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 →