BIOS and EC firmware set for a board identified as P15xSMA, version B0311, packed into a 2.94 MB RAR archive. Having both the system BIOS and the embedded controller firmware in one package is useful when a unit shows no power, charging faults or keyboard problems caused by a corrupted EC. Confirm the board marking on the PCB matches P15xSMA before writing anything. Dump and keep the existing chip contents with an SPI programmer, and check each image size against the capacity of its target flash chip.
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 @afsbiosfree. 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 →