# How to Manually Configure Zigbee2MQTT
**1、Open the Add-on Manager and update to the latest scripts package.**
**2、Without inserting the dongle yet**, open **Serial Port Viewer**.\
You should see an existing device listed (e.g., *device1*).\
\&#xNAN;*Note: This add-on does not need to be installed. Every time you switch away to another add-on and come back, it will automatically re-scan serial ports.*
**3、Now insert your dongle**, switch to another add-on, then come back to **Serial Port Viewer** again.\
You will now see an additional device in the list.\
This new device is your dongle’s serial port.\
In the example screenshot, the dongle appears as **/dev/ttyUSB0**.
**4、Enable Zigbee2MQTT** in the add-on list.
5、Open the Zigbee2MQTT initialization page in your browser:\
**http\://{ip}:8080**
**6、Complete the configuration.**
**Key points to note:**
* **Fill in the detected serial port**, for example: **/dev/ttyUSB0**.
* **Select the correct Adapter Driver** for your dongle.For example，my dongle is **zstask**；
* **MQTT configuration:**
* Change **localhost** to **127.0.0.1**
* Username: **admin**
* Password: **admin**
* **Enable all available checkboxes** on this page.
7、If everything is configured correctly, Zigbee2MQTT will start successfully.\
Click **“Permit Join”** to begin scanning and adding devices.
