BIOS binary for the Lenovo E15 notebook on an NM-C421 mainboard, an LCFC board number, LCFC being Lenovo's in-house ODM. At 16 MB it is a full-chip image for a 128 Mbit SPI flash and normally contains the descriptor, ME and BIOS regions together. Use it when a board fails to start after corrupted firmware. Make sure the NM-C421 label on the PCB matches. Dump the original chip before writing, so the serial number and system data stored in it can be moved across if needed.
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 @ComputerBIOSBinFile. 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 →