When you try to access your measurements, or when you try a new calibration, or when you try to change your pool settings, the following error message appears:
"LOCATION SERVICES NEEDS TO BE ENABLED ON ANDROID 6.0"
This means that the geolocation system of your Android Smartphone is disabled.
Without this feature, Flipr cannot work. To reactivate it, go to the settings of your smartphone, and change the setting.