I gave up on mine. One of my 4 worked fine from day one. The other 3 routinely turned on and off by themselves. Even after upgrading the firmware numerous times.
I went through weeks of my own troubleshooting. If you search the forum you wil find the thread but to summarize…
Put them all on a UPS(pure sinewave APC smartups).
Ran wireshark to monitor the connection for a weekend. I found they would reboot for no reason and then turn on even though their last mode was off. The reboot seems to do with them losing the IP address. I know its not my router as the router had requests from the bulb, nothing about the router dropping the connection.
I took one apart and dumped the eprom code and found what looked like data corruption to I took apart my good one and dumped its eprom too. When comparing the data was definitely different(aside from the mac ids). It looked to me that the firmware update was not working right.
My semi-educated guess is the ESP-Wroom-02 controller is not as compatible with their system as they expected. Meaning that if the firmware mucks up when updating, there is no way to fix that OTA. I also know many people have no problems which is great for them. Those of us who have bulbs turning on for no particular reason are pretty frustrated at this point.
I copied the firmware from the good bulb to a bad bulb after using an espressif utility to wipe the controller code. That bulb has been OK since.
The whole experience was pretty frustrating for me. I opened a support ticket and didn’t get any reply for 2 weeks until I opened another and made a mild stink. They were polite and tried their best I guess, but nothing was ever resolved by them on their end. To this day the ticket is still probably open and I have 2 bulbs that are no good. Technically I violated the warranty anyway by troubleshooting but no one was helping to I had to help myself.
I ended up buying another brand of tunable(warm to cool white) wifi bulb and they are working fine. AOCOCR was the brand.
This is probably unrelated but the outlets are using the ESP8266 instead of the ESP-WROOM-02. I wonder if that’s due to the bulbs? More likely its what the company who made the outlets for Wyze wanted to use. I will say the outlets have been working fine so far.