Lenovo BIOS dump for a laptop built on the NM-A273 motherboard, supplied as a raw 8.00 MB binary image. The name gives no model, revision or version, so identify the machine from the label on the PCB before use. NM-A numbers follow the LCFC numbering used for Lenovo boards. An 8 MB image suits a 64 Mbit SPI flash and is written with a programmer such as a CH341A. Always read and save the original chip contents first, and confirm the board number and revision match before you write it."}
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 .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →