Raw 16 MB BIOS image for the ASUS X421JA laptop; no board number or revision is given in the name. The size fits a 128 Mbit (16 MB) SPI flash chip, the usual target for writing with a CH341A or similar programmer. Technicians use such a dump to recover a board stuck with corrupted firmware. Read and save the original chip contents first, since they hold the unit's serial and configuration data, and check the motherboard revision matches the X421JA model.
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 @jdbios_world. 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 →