Keyboard controller firmware for the Dell Inspiron 3521, 2.00 MB BIN file; KBC stands for keyboard controller, the embedded controller that manages power sequencing, battery charging, fans and the keyboard. The name marks it as working. A faulty EC image can cause no power, no charging or a dead keyboard, so this dump is written to the separate EC flash chip with a programmer. Save the original first, confirm the chip capacity matches 2 MB, and use it together with the matching main BIOS image for the same 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 @bios_laptop. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →