How to Fix Facebook Two-Factor Authentication Code Not Received

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Written by: Alex Popa


How to Fix Facebook Two-Factor Authentication Code Not Received

Is Facebook’s two-factor authentication code not sending?

This might be because your device is not connected to the internet.

If it’s not that, then you should read this article. You’ll learn what causes this problem and how to fix it.

You may have to contact Facebook customer support and mess around with your phone’s settings.

How to fix the Facebook “Two-Factor Authentication Code Not Received” error:

  1. Add your phone number to Facebook
  2. Unblock your contacts
  3. Report an issue with Facebook mobile texts
  4. Report a problem with the account verification

Keep reading to know how to receive the two-factor authentication code on Facebook!

Related guide: How to Report a Facebook Account
Related guide: How to Recover a Disabled Facebook Account
Related guide: How to Fix “This account is also logged into Facebook” on Messenger

How to Fix Facebook Two-Factor Authentication Code Not Received

What Causes This Issue?

It could be any number of potential causes, such as:

  • Your device is not connected to the internet
  • You have a weak internet connection
  • Your phone number is not linked to your Facebook account
  • Your phone has insufficient storage to receive any messages
  • There’s a bug somewhere with the app or your device (clearing the cache should fix it)

Most of these issues are fixable from the start. Check if your phone is connected to the internet.

If it is, but you’re not receiving the two-factor authentication code, try switching between Wi-Fi and Mobile Data.

Your internet connection might be too weak on one of those. Switching to the other could help.

Check your phone's internet connection
Check your phone’s internet connection

You swipe down from the top of your screen and see this menu.

Your Mobile Data and Wi-Fi should be among the first options there.

If that’s not the problem, something else is to blame.

In this guide, we’ll focus on four solutions for this problem:

  • Adding your phone number to Facebook
  • Unblocking your contacts
  • Reporting an issue with Facebook mobile texts
  • Reporting an issue with the account verification

We’ll start with the first one!

Add Your Phone Number to Facebook

As stated previously, you won’t receive a two-factor authentication code on your phone if your phone number isn’t added to Facebook.

To do this, follow the steps below:

  • Open Facebook and tap on the Hamburger icon in the top-right corner
Opening the Facebook app and menu
Opening the Facebook app and menu

You want to go to Settings, so the first tap on your Menu (Hamburger icon).

  • Select Settings
Facebook account settings page
Facebook account settings page

Your Settings are under the cogwheel icon.

  • Go to Notifications
Facebook notifications page
Facebook notifications page

Once you open your Settings, you’ll see multiple options under different categories.

Look for the Preferences category. You shouldn’t need to scroll down to see it.

Under the Preference category, look for the “Notifications” option.

Tap on it.

  • Scroll down and tap on SMS
Facebook SMS notifications
Enable Facebook SMS notifications

You’ll need to scroll down to the “Where You Receive Notifications” menu.

Under it, you’ll see three options – Push, Email, and SMS.

You want to go to SMS.

  • Add your Phone Number and confirm
Add phone number to Facebook
Add phone number to Facebook

Unblock Your Contacts

Unblocking your contacts may help because, at some point, you may have blocked Facebook contacts.

This means Facebook can’t contact you on your phone or send text messages.

To unblock your contacts, follow the steps below:

  • Go to your phone’s Settings and use the search bar

To go to your phone’s settings, look for the cogwheel icon.

It should be at the bottom of the screen or in your app list.

After setting, type in “Call Settings” or “Blocklist.”

Phone blocklist
Phone blocklist

This is the easier way to find the setting you’re looking for.

  • Select the Call Settings option
Phone call settings
Phone call settings

If you searched for “Blocklist,” select Blocklist from the drop-down menu.

  • Go to “Blocklist”
Phone call settings and blocklist
Phone call settings and blocklist

In your Call Settings, you’ll be able to edit the Blocklist.

Tap on it to go there.

  • Go to “SMS Blocklist” or “Blocked numbers.”
Phone SMS blocklist
Phone SMS blocklist

It’s better to check both Blocklists for Facebook numbers.

You’ll see several phone numbers listed in the “Blocked numbers” setting.

Select them all and delete them.

  • Delete all phone numbers in the Blocklist
Delete numbers from phone blocklist
Delete numbers from the phone blocklist

To do this, long tap on a number. This will select it. Now tap on all the other numbers, and it’ll like them.

At the bottom of the screen, you should see a “Delete” button. Tap on it.

Now all those numbers can contact you again.

Since you don’t know which one belongs to Facebook, it’s better to delete all of them.

Report an Issue with Account Verification

If unblocking your contacts doesn’t work, the problem is more serious.

You should report the issue to Facebook.

Search “Report an issue with verifying your account” on Google to do this.

It should be the first result on Google – this form.

Report and issue to Facebook
Report an issue to Facebook

Complete all the fields with your information, add additional info if necessary, then click/tap on “Send.”

The form looks the same on the phone as on a computer.

In the “Error message” menu, select “Other” since you still haven’t received your two-factor authentication code.

Now, you should wait for several days before trying to log back into the Facebook app.

Either way, Facebook should reply to your email about the issue.

Report an Issue with Facebook Mobile Texts

This is the final solution. By now, you’ve probably solved the problem.

But if you haven’t, you should do it.

Search for “Report an issue with Facebook mobile texts” on Google.

The form you need is this one.

As in the previous step, you must complete the form with your information.

Under the “Issue” menu, select “Receiving texts” since you’re not receiving the two-factor verification code.

Tell them more about your experience with the issue in the “Describe the issue” field.

After you send the form, you’ll need to wait several days for Facebook’s reply.

They’ll respond to the email address you provided in the form.


While two-factor authentication is a great setting, it might become buggy from time to time.

SMS texting sometimes doesn’t work as it should, and you won’t receive the verification code on your phone.

It could be because your device is not connected to the internet, you have blocked Facebook contacts, or there’s a problem with Facebook’s SMS texting and account verification.

In this case, unblock your contacts from your phone’s settings and complete the forms provided above.

This should solve the “two-factor authentication code not sending” problem.

You can also use the Facebook code generator as an option for two-factor authentication.

In this case, you will get the verification code in a text message.

You will then have to enter the Facebook confirmation code.

Google Authenticator app and Microsoft Authenticator, on the other hand, will not work.


How do I know if I have a weak internet connection?

The first thing you should notice is a delay in page loading.

Browsing on the internet requires a pretty solid internet connection.

If yours is weak, then you’ll notice the page loading delays.

Alternatively, you can try testing your internet connection with a speed tester.

If you’re on Wi-Fi, your internet connection will be that of your computer, so check your internet connection on your computer.

You should check the contract with your mobile carrier if you’re on Mobile Data.

That’s where you’ll discover your internet connection and speed.

What is Facebook two-factor authentication good for?

Two-factor authentication secures your Facebook account better than a simple password would.

Think of it this way – when you try to verify your Facebook account; you need your password.

But with two-factor authentication enabled, you’ll also need a special code sent on your phone or email.

Other people may find out your Facebook password if you’re not careful. It happens all the time.

But the two-factor authentication code is harder to get.

It’s only sent to your phone or email when necessary, and it always changes.

It never stays the same, which means a hacker has to have constant access to your device to know your two-factor authentication code.

Can two-factor authentication be bypassed on Facebook?

Not if it stays enabled.

If two-factor authentication is disabled by either you or a hacker, they’ll bypass the security measure.

But it can’t be bypassed if it remains enabled all the time.

You’ll receive a two-factor authentication code whenever you need to verify your account.

To disable this feature, go to Facebook Settings – Password and Security – Two-factor authentication.

You can disable it from there.

But we wouldn’t recommend it because it secures your account better than just using a password.

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Alex Popa

My name is Alex and I have a knack for social media in all its shapes and forms. I’ve dealt with such things for quite some time and I noticed that many people have issues with social media and technicalities.

Unforeseen errors, bugs, and other problems make their use of social media problematic. These things will be discussed amply in the guides on Whizcase.

I'll present the facts as they are, and offer quick and easy solutions for them.

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