Open Kasa on your phone. If you don’t have that, you can get the app from the App Store or the Google Play Store and use it.
– Then install it and select the smart bulb you want to reset. You can see that under the “Devices” section. The bulb settings page appears.
Reset the bulb on the settings page. This is “Reset” or “Factory Reset.” Tap to reset
The app will walk you through the reset process. Follow the screen prompts to reset. The smart bulb can be used again or connected to a new network after the reset