Working BIOS dump for ASUS X552MJ and X550MD laptops, board revision 2.0, BIOS version 301, packed in a 6.48 MB RAR. The name marks it as a working dump, meaning it was read from a functioning unit. It is meant to be written to the SPI flash with a hardware programmer such as a CH341A. Confirm the board revision printed on the PCB matches 2.0, save a backup of the original chip first and make sure the image size matches the flash capacity.
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 →