If you need to unpair Xpress from the network follow the these steps:
- Go to Nearby devices screen (More -> Nearby Devices)
- Press two buttons in the Xpress at the same time
- Tap on the Xpress when it appears in the Nearby Devices list
- Select Unpair Device
- In the unpair screen tap on Start
- Press one button on the Xpress to unpair the switch
Make sure that the Xpress has at least one amber LED on when you do the unpairing. You need to perform the steps quite fast before Xpress goes off (no LEDs on).