How to enable gyroscope in Unity3D on Android?

Question

Unity

There is a Samsung Galaxy Tab A tablet, Samsung Galaxy A7 and ZTE Blade L3 smartphones. None of the gyroscope in a simple demo does not work. On all devices SystemInfo.supportsGyroscope returns FALSE. Input.gyro.enabled = true in Start() is set.
UPD. Answer found. There was never a gyroscope in these devices. We have to use the accelerometer, but now the question arose how to find out the angle of the device ?