BIOS image for LCFC board NM-E641 version 1.0, which the name associates with JY771 and JY776 project codes, packed as a 9.36 MB RAR archive. The 32MB marking indicates the image targets a 32 MB SPI flash chip. NM-xxxx numbers follow the LCFC pattern, Lenovo's in-house ODM. Use it to reflash a board with corrupted firmware via a programmer, but first read and save the original chip, verify the board number and revision on the PCB, and make sure the image size equals the chip capacity.
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 →