Firmware archive for the K50IJ notebook, with AS220 probably meaning BIOS version 220, stored as a 635 KB zip. Another K50IJ release, version 218, also exists, so pick the one you need. Such files help recover a board after a failed update or corrupted flash memory. Back up the original chip with a programmer before writing, check whether the archive holds an update file or full image, and confirm the size suits the fitted flash 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 .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 →