BIOS and EC firmware for the LG R490 notebook, built on the Quanta QL2 motherboard DA0QL2MB8F0. According to the name, the archive holds a system BIOS dump together with an embedded controller image of 512 KB. Quanta uses the DA0 prefix with a project code, here QL2, for its board numbers, so the code silkscreened on the PCB should match before you flash. A corrupted EC image often causes no power or no charging, and reprogramming it with an SPI programmer can revive the board. Keep a backup of the existing chip contents 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 @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 →