BIOS archive for the ThinkPad X1 Carbon 5th Gen, machine type 20HQ, provided as a 7.63 MB RAR with no extra notes on version or lock status. Technicians write such an image to the SPI flash to recover a board that fails to power on correctly or shows corrupted firmware symptoms. Use an external programmer and clip, read and keep the original chip first because it holds the serial and UUID, and confirm the binary size matches the flash part before writing.
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 →