If the goal is to reset the camera to standard operating behavior, the user should download the official firmware.
Since there is no "official" Canon download page for EFI tools, users generally rely on these sources: reset eos efi software link download
Follow these instructions to avoid downloading the wrong firmware. If the goal is to reset the camera
Let’s address the elephant in the room. If you type into Google, you will find dozens of shady third-party websites offering "cracked" or "free" versions. Do not use them. reset eos efi software link download