I think I can change the firmware, but it sounds like I'd have to desolder each one, solder on servo If you use the app or the firmware updater you can change it so that there's. If you look in the manual, which you can download. If you updated your ESC to SimonK firmware version or newer and enabled the bootlader you can later reflash the ESC with the ArduinoUSBLinker, Afro USB Programming Tool or the Turnigy USB Linker simply via the Servo plug.
SimonK BL-ESC firmware and Wii-ESC can be flashed to any by the firmware supported ATmega8 based BL-ESC.
