ZIP-compressed BIOS image of about 2.11 MB named simply as an 8 MB BIN, associated with a Lenovo board carrying LCFC number NM-D301. LCFC is Lenovo's own manufacturing arm, using the NM-xxxx board pattern. The image is meant for an 8 MB SPI flash chip; a dump whose size differs from the chip will not fit. Back up the original contents with a programmer such as CH341A or RT809H before writing, and confirm the NM-D301 marking on the PCB because the file name itself gives few details.
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 @schematiclaptopramkushwaha. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →