Original working BIOS for ASUS X550VC and X550CC laptops, read from a Winbond W25Q64FVSIG, an 8 MB SPI flash chip. Sharing one image across these two variants reflects their common board design, but check the revision on your PCB anyway. The 3.72 MB RAR contents should be written with a programmer such as a CH341A using a clip or after desoldering. Save the current chip contents before writing and ensure the image is exactly 8 MB to match the W25Q64.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →