Firmware archive for the ASUS X555LA. The name gives no board revision or version, so check the PCB revision before use. At 3.22 MB the RAR contains a BIOS image that a technician writes to the SPI chip with a programmer such as a CH341A, usually to recover a board with corrupted firmware or no display at power-on. Extract it first and compare the image size with the flash capacity, and always read and keep the original chip contents before overwriting them.
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 →