This comment exactly explains the frustration : https://code.google.com/p/android-developer-preview/issues/detail?id=1570#c31 https://code.google.com/p/android-

This comment exactly explains the frustration : https://code.google.com/p/android-developer-preview/issues/detail?id=1570#c31 https://code.google.com/p/android-developer-preview/issues/d... Hardware supports it, but Google for some unknown reason just disables software support, it did it in the past with 4.3 BLE support and apparently nothing changed.