BIOS firmware for the Lenovo Flex 4-1470, provided as a 4.58 MB RAR archive. The name gives no board number or version, so check the contents and compare them with the mainboard before use. Technicians flash such images onto the SPI chip with a hardware programmer to recover a laptop that powers on without display or fails after a bad update. Read and keep a backup of the original chip, and make sure the extracted image matches 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 →