BIOS package for the ThinkPad X1 Yoga 3rd Gen, machine type 20LE, in an 8.07 MB RAR from Lenovo. No motherboard code or version appears in the name, which limits verification from the title alone. Open the archive to identify the image and compare it with the label on the board. Technicians write such files to the SPI flash with a hardware programmer when firmware is corrupted. Always save the original contents, verify the read, and make sure the image size equals 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 @biosfilebins. 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 →