BIOS image for the Lenovo Z50, an 8 MB .bin described in the name as the cut main section, meaning it was trimmed from a larger dump or update file to the main BIOS region. No board number or revision is given, so check the motherboard label. A file of this size matches an 8 MB SPI flash chip. Write it with an external programmer after saving the original contents, and confirm your chip capacity, since some boards split firmware across two chips.
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 @biosbigarchives. 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 →