[FirebaseAuth] SMS verification code request failed: Invalid request fields in play_integrity_token

[Raaawezh]

I'm encountering an issue with Firebase Authentication in Flutter after upgrading to Flutter 3.10 and updating the Firebase plugins. The authentication flow works fine on iOS devices, but on Android, I'm facing the following errors:

1- [SmsRetrieverHelper] SMS verification code request failed: unknown status code: 17028 Invalid request fields in play_integrity_token

2- This app is not authorized to use Firebase Authentication. Please verify that the correct package name, SHA-1, and SHA-256 are configured in the Firebase Console.

I have already configured the SHA-1 and SHA-256 values in the Firebase Console, and it was working correctly before the upgrades. To address these issues, I have also implemented app check in my code using the following snippet in the main method:

WidgetsFlutterBinding.ensureInitialized();

await Firebase.initializeApp(
  options: DefaultFirebaseOptions.currentPlatform,
);

await FirebaseAppCheck.instance.activate(
    webRecaptchaSiteKey: 'recaptcha-v3-site-key',
    
    androidProvider:
        kDebugMode ? AndroidProvider.debug : AndroidProvider.playIntegrity);

I'm uncertain if I'm missing something or if there are additional configurations required after the Flutter and Firebase plugin updates. Any assistance or insights would be greatly appreciated.