I have a ESP8266 (ESP-12F) which I flashed with ElegantOTA, a variation of ArduinoOTA with just a different interface. I never managed to flash anything else, so it's a bare OTA I flashed using a dedicated programmer. The device has not even pins for further flashing.
The ESP is already in a device which I would like to avoid opening, and I would like to avoid soldering pins and flashing locally the ESPhome firmware (which is also configured for future OTA).
I'm not sure the bootloaders or whatever is used to self-flash the chip are compatible. How can I do it?
Or should I just open the ArduinoOTA webpage, upload a ESPhome firmware and go on?