Plain X270 BIOS archive of 5.50 MB in ZIP form; the name states only the model and nothing about revision, board number or modifications. It is useful as a reference or recovery image when a laptop fails to post due to corrupted firmware. Flash it with an external SPI programmer and clip, after first reading the original chip twice and comparing the two reads. Compare the file size against the flash chip capacity and verify the motherboard is indeed an X270 before writing anything to it.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →