Android OS needs location permission to find Bluetooth devices. This is designed this way because Bluetooth MAC addresses can potentially be used to determine the user's location.

If location services are disabled in your smartphone settings, you have to enable them via System Settings → Location.

Also, please verify that you gave the “location" permission to the app itself:

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Storage is an optional permission required in 2 scenarios:

Atmotube uses advanced ML models to categorize air quality dates (e.g., indoor/outdoor). Physical activity (type of phone movement) is used as one parameter to improve model accuracy.

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