Embedded controller firmware for the Acer 5755, saved as a 128 KB .rom file. The EC handles power sequencing, keyboard, battery charging and fan control, so a corrupted EC image can leave a laptop dead or with no power-on response. The image is written to the EC or its dedicated flash chip with a suitable programmer. Check which chip actually holds the EC code on your board, back up the original, and make sure the board number on the PCB matches the model.
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 @ComputerBIOSBinFile. Enginerys does not host this file.
How to open a .rom file
A BIOS image as shipped by the vendor (commonly AMI) — often the BIOS region only, without descriptor or ME.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →