Is there a way I can update the firmware on the ESP8266 via Ethernet rather than WiFi? My device has a w5100 connected to it and allows access via WiFi or wired connection with the ESP doing all the work. It's absolutely brillian this chip but I'd like to be able to update my sketch via Ethernet as that is the default connection mode customers will be using and I can get the interface into a default setting of 192.168.0.1 for example and in this mode I'd like to allow code updates.
Does anyone know how I could do this or have any pointers please? BTW: my C++ is non existent, I can only write in C and C#.