Lenovo ThinkPad X270 BIOS firmware packed in a RAR archive of 15.5 MB, labelled by its author as tested and working (the name spells it tasted). No board number or revision is given, so the exact motherboard variant inside is not stated. Technicians use such a dump to reflash the SPI BIOS chip with a programmer such as a CH341A after corruption or a failed update. Unpack it first, compare the image size with the capacity of the chip on the board, and always read and save the original contents before writing anything.
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 @hrtechno. 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 →