When I am trying to phone authntication I am getting below error.
W/BiChannelGoogleApi(12340): [FirebaseAuth: ] getGoogleApiForMethod() returned Gms: com.goo
W/BiChannelGoogleApi(12340): [FirebaseAuth: ] getGoogleApiForMethod() returned Gms: com.google.firebase.auth.api.internal.zzal@489
These types of error codes are pretty much useless. Try
Log.i("flag", "signInAnonymously:failure", task.exception)
inside the auth.createUserWithEmailAndPassword or similar method.
When authenticating google will look for a password with at least more than 6 characters.
You can see some examples here: https://github.com/firebase/quickstart-android/tree/master/auth