Firmware set for the Toshiba Satellite P855-S5312 on the Compal LA-8392P mainboard, containing main BIOS, PCH and EC images as stated in the name. Compal numbers its laptop boards with an LA-xxxxP code, printed on the PCB. Separate images mean the main SPI chip and the keyboard controller flash are written individually, and the EC file fixes power-on and charging faults caused by corrupted embedded controller code. Confirm LA-8392P on the board and back up each chip before writing.
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 .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 →