ASUS X550LD BIOS image for motherboard revision 2, reported as tested and working. The file is a full 8 MB dump, matching a 64 Mbit SPI flash chip. Technicians write it with a hardware programmer when the laptop has no POST, a corrupted BIOS or a failed update. ASUS X550 boards exist in several revisions, so confirm the REV marking on the PCB is 2.0 and back up the existing chip contents before writing, since the original also holds serial and system data that may need restoring.
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 .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 →