Raw 8 MB BIOS image named for the ASUS X505ZA, with an AS suffix whose meaning the name does not explain. An uncompressed .bin of this size usually matches a 64 Mbit SPI flash and is written directly with a programmer such as a CH341A. Technicians use such dumps to recover boards that will not POST or are stuck after a failed update. Read and save the original chip before erasing, confirm the board is an X505ZA, and check the flash chip capacity so the image fits exactly.
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 @bioshub. 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 →