BIOS and EC firmware set for the HP Envy 15-ae166nz, built on Compal motherboard LA-C503P, in a RAR archive. LA-xxxxP is Compal's numbering pattern, and Compal produced this board for HP. Having both the system BIOS and the embedded controller image lets a technician recover a unit that will not power up, charge or show display after flash corruption. Write the files with an SPI programmer only after backing up the original chips, and confirm each image size matches its target flash chip before programming.
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 @bioshub. 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 →