Firmware for a board coded LGE53 A25, the discrete-graphics (DIS) version, revision 2.1, packed as RAR at about 1.94 MB. No laptop brand or model is given, so confirm the board code and revision on the PCB before you use it. DIS boards carry a separate GPU and often need different firmware from integrated (UMA) versions, so do not mix them. Extract the image, read and back up the original SPI chip with a programmer, then check that the file size matches the 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 .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 →