To pair a new Xpress switch, press any two buttons on the Xpress switch and the Casambi app will automatically detect it. If you have an existing network, the Casambi app will automatically suggest to add Xpress to that network. Tap on the Add to My Network button. If there is no network then tap on the Take into use button. Alternatively, you can add the Xpress switch from the Nearby Devices list.
To pair a previously used Xpress switch with a new network, press any two buttons on the Xpress switch. This will then put the switch into pairing mode. At this point, you can then follow the same instructions mentioned above.