Firmware image for the ASUS X455LJ notebook mainboard, revision 2.1, described in the name as a working BIOS. The name does not state the CPU variant, so compare it with other X455LJ dumps if your board carries a specific processor. Supplied as a 3.46 MB RAR archive for reflashing the SPI BIOS chip with an external programmer. Read and store the original chip contents before writing anything, confirm that the board revision matches, and verify the extracted file size against the flash 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 →