BIOS archive labelled for the Lenovo ThinkBook 14 first generation, packed as a 6.83 MB RAR. The name gives no mainboard number, revision, ME status or flash chip size, so identify the board from the PCB silkscreen and compare it with the archive contents before use. Images like this are normally written to the SPI flash with an external programmer to recover a board that is dead or stuck at boot. Always dump and keep the original chip first, since serial number and platform data live there, and check the image size fits the chip.
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 @iasviptools. 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 →