Embedded controller firmware image, judging by the ecrom name, as a raw 128 KB .bin with no brand, model or board stated. EC dumps hold the code that handles power-on, battery charging, keyboard and fan control, and are written to a separate EC flash or the controller itself with a programmer. Because the source device is unknown, verify where the file came from, for example by checking text strings inside, before flashing. Save the original EC contents first and make sure the 128 KB size suits the target 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 @vinafix_bios. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →