BIOS firmware for the Asus K42JK laptop, packed in a 975 KB ZIP whose AS218 suffix probably denotes BIOS version 218. The package is around 1 MB and may be an update file or a raw image. It can be used to reflash a corrupted SPI BIOS chip with a hardware programmer or the Asus utility, the usual fix for black-screen boards with normal power-up. Back up the original chip first, confirm the board belongs to a K42JK, and check the image size against the chip before writing.
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 .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 →