Firmware set for the ASUS X55U mainboard revision 1.4, an AMD-based model, containing BIOS and KBC files in a 2.10 MB zip. KBC refers to the keyboard controller, which on such laptops also acts as the embedded controller for power and charging. The pair is used to recover a board that stays dead or fails to start after a corrupted flash, writing the BIOS chip with an SPI programmer and the KBC as needed. Confirm the revision on the PCB and back up both original chips first.
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 @biosfiles. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →