The reason I’m creating this guide is that I spent hours trying to figure out an easy way to remove an MQTT device properly without uninstall Mosquitto broker or purge the whole database.  This guide applies to hassio with Zigbee2mqtt and Mosquitto broker add-on.  Unlike most other protocol where you simply click a few button to remove a device. You need to remove a device from a couple of places. In this guide, I’ll use “KitchenLight” as example.  Step 1: In hassio, go to Developer Tools - MQTT...