App not Signing into Firebase from Physical Phone but Signs in on Emulator

Question

The app works perfectly fine when running either through emulator or from usb off of android studio. but when i generate a signed APK and run it on a physical device it does not want to sign into Firebase.

I've made sure i had my Release SHA-1 on firebase, updated my google-services.json. 

I've made sure i had my Release SHA-1 on firebase, updated my google-services.json.

void SignInGoogle(){
            progressBar.setVisibility(View.VISIBLE);
                Intent signIntent = mGoogleSignInClient.getSignInIntent();
                startActivityForResult(signIntent,GOOGLE_SIGN);
            }

        @Override
        protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
            super.onActivityResult(requestCode, resultCode, data);

            if(requestCode == GOOGLE_SIGN) {
                Task<GoogleSignInAccount> task = GoogleSignIn
                        .getSignedInAccountFromIntent(data);

                try{
                    GoogleSignInAccount account = task.getResult(ApiException.class);
                    if(account != null) firebaseAuthWithGoogle(account);

                }catch (ApiException e ){
                    e.printStackTrace();
                }
            }
        }

        private void firebaseAuthWithGoogle(GoogleSignInAccount account) {
            Log.d("Tag","fierbaseAuthWithGoogle : " + account.getId());

            AuthCredential credential = GoogleAuthProvider.getCredential(account.getIdToken(),null);
            mAuth.signInWithCredential(credential)
                    .addOnCompleteListener(this,task -> {
                        if (task.isSuccessful()){
                            progressBar.setVisibility(View.INVISIBLE);
                            Log.d("Tag","Sign in success");
                            Toast.makeText(MainActivity.this, "Sign in success", Toast.LENGTH_SHORT).show();
                            FirebaseUser user = mAuth.getCurrentUser();
                            updateUI(user);

                        }else{
                            progressBar.setVisibility(View.INVISIBLE);
                            Log.d("Tag","Sign in fail");
                            Toast.makeText(MainActivity.this, "Sign in failed", Toast.LENGTH_SHORT).show();
                            updateUI(null);

                        }


                    });
        }