BIOS image for a board identified as APN1S_MB with version V30, packed in a 5.07 MB zip; no brand or model is given in the name. The image is intended for writing to the SPI flash with a programmer or vendor tool. Before use, confirm the APN1S marking on the board and verify the extracted image size against the flash chip capacity, because a mismatched file will not fit. Read and archive the existing chip contents first so you can recover if the new image does not boot.
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 @Satale_bios_esquemas_Laptop. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →