It is important to verify that the phone's location settings are configured correctly when using the tado° App on a smartphone with Android version 4.3 or lower (these are older phones, generally sold until 2013). These settings are essential if you want to use the Location Based Control functionality of tado°. In order to check these settings, open the smartphone settings and look for the Location services submenu. Here make sure that the Google Location services are selected. The network based services also have to be activated, if present.