Small ZIP archive containing an embedded controller firmware image named simply EC.bin, with no model, board or version given. EC firmware handles power-on sequencing, battery charging, keyboard and fan control. A corrupted EC chip can leave a laptop dead or without charging. It is flashed to the EC or its dedicated SPI chip with a programmer. Because the name is uninformative, confirm which board it came from, read the original chip first and compare sizes 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 @vinafix_bios. 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 →