SMS verification code request failed when authenticating using Firebase Auth

Question

When authenticating using Firebase Auth, I want to auto input the code that is received via SMS. I am able to receive SMS and go through auth process manually, but when I use SmsRetriever, the app crashes and then the bottom sheet dialog shows up. This is everything that that appears in Logcat:

E/FirebaseAuth: [SmsRetrieverHelper] SMS verification code request failed: unknown status code: 17010 null

Code in Fragment where user inputs their phone number:

private val SMS_CONSENT_REQUEST = 2  // Set to an unused request code

    private val smsVerificationReceiver = object : BroadcastReceiver() {
        override fun onReceive(context: Context, intent: Intent) {
            if (SmsRetriever.SMS_RETRIEVED_ACTION == intent.action) {
                val extras = intent.extras
                val smsRetrieverStatus = extras?.get(SmsRetriever.EXTRA_STATUS) as Status

                when (smsRetrieverStatus.statusCode) {
                    CommonStatusCodes.SUCCESS -> {
                        // Get consent intent
                        val consentIntent = extras.getParcelable<Intent>(SmsRetriever.EXTRA_CONSENT_INTENT)
                        try {
                            // Start activity to show consent dialog to user, activity must be started in
                            // 5 minutes, otherwise you'll receive another TIMEOUT intent
                            startActivityForResult(consentIntent, SMS_CONSENT_REQUEST)
                        } catch (e: ActivityNotFoundException) {
                            // Handle the exception ...
                        }
                    }
                    CommonStatusCodes.TIMEOUT -> {
                        // Time out occurred, handle the error.
                    }
                }
            }
        }
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        val task = SmsRetriever.getClient(requireActivity()).startSmsUserConsent(null)
        val intentFilter = IntentFilter(SmsRetriever.SMS_RETRIEVED_ACTION)
        requireActivity().registerReceiver(smsVerificationReceiver, intentFilter)
    }
    
    override fun sendSms() {
        showProgressBar(true)
        SmsRetriever.getClient(requireActivity()).startSmsUserConsent(presenter.getNumber())
        val options = PhoneAuthOptions.newBuilder(auth)
            .setPhoneNumber(presenter.getNumber())
            .setTimeout(58L, TimeUnit.SECONDS)
            .setActivity(requireActivity())
            .setCallbacks(callbacks)
            .build()
        PhoneAuthProvider.verifyPhoneNumber(options)
    }

    override fun onDestroy() {
        super.onDestroy()
        requireContext().unregisterReceiver(smsVerificationReceiver)
    }

This is the code in Fragment where user has to input the code:

 override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        when (requestCode) {
            // ...
            SMS_CONSENT_REQUEST ->
                // Obtain the phone number from the result
                if (resultCode == Activity.RESULT_OK && data != null) {
                    // Get SMS message content
                    val message = data.getStringExtra(SmsRetriever.EXTRA_SMS_MESSAGE)
                    // Extract one-time code from the message and complete verification
                    // `message` contains the entire text of the SMS message, so you will need
                    // to parse the string.
                    message?.let { presenter.parseSms(it) }
                    // send one time code to the server
                } else {
                    // Consent denied. User can type OTC manually.
                }
        }
    }

Answer 1

Print your FirebaseAuthException error to see what's going on. If you're using a real phone number for development and using it again and again, Firebase might block the device for a time being.

SOLUTION: Add a test phone number with a password and use it.

Answer 2

It came up with simple solution for me to add SHA1 and SHA-256 key to my firebase Console

Answer 3

try to print exception in onFailure like --> {p0.message} print this line logcat and it will definately show --> E/exception in firebase: We have blocked all requests from this device due to unusual activity. Try again later. this is why because we are using this phone number many times for login

Answer 4

It is a too-many-request error screenshot

The solution is to either wait for few hours or -if this user is a test user- , just add the number in test users to fix the code and do not send too many SMSes.