I have one of these and it works with OH2 without firmware change (it uses WiFi LED binding). I think you should set it up using their android app first (it’s called Magic Home or something like that) and connect it to your Wi-Fi network. I’ve had a few problems connecting it first time (Wi-Fi must not be hidden, it has to be 2.4 GHz and password shouldn’t exceed 25 characters), but when it was connected, Wi-Fi LED binding found it without issues.
for Information about flashing a new firmware (like ESPEasy), there are some guidelines on the net for the pin out. I soldered the wires for FTDI (Rx, Tx, GND) and a button switch (GPIO0) for going to flash mode.
I wasn’t aware of WiFi LED binding. At the time I was looking for a solution, I found the AL-LC01 with the option to flash your own firmware and control it via MQTT. So I bought the AL-LC01 expicitly to program a different firmware!
Another point is, that you don’t know which “unseen” functions such a software is using and if you get a backdoor to your private network through such a device.
For these reasons I don’t mind using such a “complicated” way, especially because I am using two other ESP8266 with ESP Easy to measure some temperatures/humidity with 1-wire sensors and DHT11.
If the WiFi LED binding is working fine out of the box, then there is no need for ingenuous users to mess around with programming a new firware to your AL-LC01. If you don’t mind about it and you have some skills to use a soldering iron you get the chance to build a really cool wireless IoT knot. Just add a temperature/humidity sensor and you have also temperature and humidity of your room. Or add any other sensor of the supported ones and feel free to create more ideas…