Embedded controller firmware image named for EM IG218 272B, marked ENE and version 2.0, delivered as a 4.66 MB ZIP containing a .bin file. ENE is a common maker of laptop keyboard and embedded controller chips, which suggests the target is an ENE KB-series EC, but the name gives no laptop brand, model or board number. Confirm the EC chip marking and board before use. EC firmware handles power-on, charging and fan control, so read and keep the original before writing this image.
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 @biosarchive. 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 →