'Alarms Unavailable' is a feature to ensure users have set up their phone settings correctly to use the FreeStyle Libre 2 app*. If the user's phone does not have the correct settings and permissions enabled, they will receive an 'Alarms Unavailable' notification and banner. The 'Alarms Unavailable' notification and banner will also present during Signal Loss.
* The FreeStyle Libre 2 app is only compatible with certain mobile devices and operating systems. Please check our compatibility guide for more information about device compatibility before using the app. Use of the FreeStyle Libre 2 app requires registration with LibreView.