Intel CSME System Tools for firmware branch 15.40, revision r3, stored as a 17.4 MB RAR file. The 15.40 branch is a separate line from 15.0, so pick this set only when the original dump identifies itself as 15.40. Contents usually include the Flash Image Tool, Flash Programming Tool and MEInfo. Repair use covers opening the SPI image, inspecting or rebuilding the ME region and producing a clean binary for a programmer, after making a backup of the existing chip.
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 @mfittool. 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 →