BIOS archive for the Lenovo ThinkPad T470s, machine type 20HG, distributed as a 5.41 MB RAR. No firmware version or board number appears in the name, so look inside to identify the image and the chip it targets. Files like this let a technician rewrite a damaged SPI flash directly with a programmer instead of relying on Lenovo's update tool. Keep a dump of the original chip, which holds unit-specific data, and check that the sizes match 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 →