BIOS binary for the ASUS K42JR notebook, taken from a motherboard of revision 4.1. The 4 MB size matches a 32-megabit SPI flash chip. It is meant for direct programming with an external programmer when the board shows no image or is stuck after a failed update. Check that the PCB is indeed rev 4.1, as other revisions can need different firmware. Read and keep the original chip contents before writing to preserve serial and MAC information.
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 @biosbigarchives. 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 →