BIOS dump for the ASUS X403FA mainboard, revision 2.1, with the PCB identifier NB8619_pcb_mb_v4, sized for a 16 MB flash chip, in a 7.84 MB RAR archive. The 16 MB figure indicates the image is meant for a 128 Mbit SPI chip, so a mismatch with your chip means it will not fit. Program it with a hardware programmer to restore a board that fails to boot. Back up the existing contents first and confirm the board markings match the name before writing and verifying 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 @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 →