Lenovo firmware archive for LCFC board NM-A271 revision 1.0, part of the ACLU1 and ACLU2 platforms. The related NM-A272 board is the UMA version, so check your exact board number before choosing a dump; the name gives no GPU detail for this one. The image is typically written to the SPI flash chip with a programmer to revive a laptop with corrupted firmware. Read and keep the original contents first, as they carry machine-specific data, and confirm that the file size fits the 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 @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 →