I was trying to install Wyze Bulbs with an iPhone Xs running IOS 13 Beta 5. Long story short–don’t do it.
The protocol that sends the wifi information to the bulb does not function (or the app in IOS is bugged); it will not send you back to the Wyze app and the countdown for the bulb config. I kept seeing references to a countdown for the configuration and reboot of the bulb and that started me thinking…
I switched to an Android phone (Samsung Galaxy Note 5 to be exact, kept around for just these issues) and bulb setup worked like a charm. I did turn off cellular data just in case.
Hope these saves someone from frustration.
And I hope Wyze includes a schedule and activation triggers (like on sensor/motion/camera people detect) for the bulbs–which is what I really wanted…I use my to light an outside door.