In order to configure the VPN settings, open your device, navigate to Settings > All Settings and tap the VPN option. If you can't see it, press More and then open the VPN option. On the configuration menu, tap the + sign, fill up the provided fields (Name of the the VPN connection, connection protocol) and type a Username and Password to establish your VPN connection. If you have issues, use the Contact Us form to get in touch with U Mobile support team.