iPhone XR iOS 13.4
Yeelight Version 3.3.15
Bulb Firmware 2.0.27
I first added this bulb to Apple HomeKit. This worked fine and the bulb worked well with HomeKit.
Then I installed the Yeelight app on the iPhone. I was immediately asked if I wanted to add the bulb to the YeeLight app. I did. It worked fine and the bulb worked well with the YeeLight app.
Then I did a firmware update for the bulb. I’m not sure if the update was successful or not. I don’t remember what firmware was originally on the bulb.
After that the bulb disappeared from the YeeLight app and can’t be added again.
I have reset the bulb many times. Each time I have tried to add the bulb to the YeeLight app but it doesn’t work.
I have added the bulb to HomeKit again and it works fine.
The only problem is that I can’t add it to the YeeLight app.
The YeeLight app can see the bulb as a HomeKit device.
Obviously, the bulb is connected to my router as it works fine with HomeKit.