Firmware dump for the Lenovo ThinkPad X1 Carbon 8th Gen, machine type 20U9, as an 8.90 MB RAR. The name lacks a board number, revision or BIOS version, so open it and verify against the board before writing. Note that the 20UA packages of the same generation are a different size. Such images are programmed onto the SPI chip with a hardware programmer to recover corrupted firmware. Read and save the original first and check that image length fits the flash.
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 →