What is Google Authenticator?  Instructions on how to use and recover the code

What is Google Authenticator? Instructions on how to use and recover the code


2021-03-24 04:45:00

In this article, CHK will inform you how to install and use Google Authenticator on any device and how to recover the code.

Google Authenticator (GA) price, marketcap, chart, and fundamentals info

  • One of the most famous security apps comes from the giant Google.
  • Generate a random code to verify the identity of a user each time they log in to different services (social media accounts, exchanges, iCloud, …)
  • 6-digit code with 30 seconds usage time. Every 30 seconds, the code is refreshed. This feature helps secure accounts with the highest level.

Why use Google Authenticator?

With the current development speed of KH-KT, it is extremely easy to attack and steal an account if that account is only secured at normal levels, including the account of you are protected with two-factor authentication via SMS.

That’s why in 2010, Google launched the Google Authenticator app to take security to a higher level. Since then, this application has been widely used in all circles.

And if you are a trader or holder, you probably do not want a good day, you log in to your account and find that your balance has returned to 0, right? And installing Google Authenticator for your exchange account is the first, most basic, and extremely important step for you.

Besides the security app from Google, there are some other two-factor authentication software such as: Lastpass Authenticator, Microsoft Authenticator, Authy, Yubico Authenticator, … but in this article, CHK only mentioned Google Authenticator because here Being the most popular and easiest to use application, setup is also extremely quick and convenient.

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How to install Google Authenticator

Depending on the type of phone you are using, choose how to download the Google Authenticator app on the Apple App Store or Google Play Store (completely free).

After you’ve downloaded and read through the app basics, you’ll start adding your first account.

Google Authenticator - Blogtienao

Instructions for using Google Authenticator

Activate GA for your gmail account

Step 1: Access your gmail account.

Step 2: Select the menu icon in the left corner of the search box> Select “settings”> Select the correct account that you are logged in> Select “manage your google account”

How to use Google Authenticator

Step 3: Just below your gmail address will have a pull bar, drag across and select “security”> In the “login to Google” select “two-step verification”> enter your account password.

How to use Google Authenticator

Step 4: After that you scroll down to “setup alternate second step” and select “Authenticator app”> Choose the type of phone to receive code and scan.

How to use Google Authenticator

***Note: There are two scenarios here:

  • If you set up two-factor authentication for your gmail on phones that do not contain GA application, you can scan the code at this step with the mobile phone that has the application by selecting the “barcode scan” option in the app.

How to use Google Authenticator

  • But if you set up on the phone that contains the GA app, you must manually enter the following step: select “can not scan code”> note the provided code> select “enter provided key” in Application> Enter “account name” and “your key” then select “add”

How to use Google Authenticator

Step 5: After selecting “add”, you will be taken back to the main screen of the application and received a 6-digit code for your gmail, enter it in the request on gmail to complete the installation.

How to use Google Authenticator

In addition, if you want to add GA code for other accounts, just select the “+” sign on the main screen of the application.

Activate GA for an exchange account

Besides gmail, activating the GA for an exchange account always seems to be an extremely important step. CHK will do an example with a Binance account

Step 1: Click on the “security” in the account section> Select “Google authentication”> Binance will ask you to download the Google Authenticator app, select “next”

Activate GA on Binance

Step 2: You will then receive a “backup key”. NOTE, PLEASE WRITE THIS KEY BECAUSE THEM WILL HELP YOU RECOVER THE GOOGLE AUTHENTICATOR IN THE CASE LOSS YOUR PHONE. Any floor also provides you with a “backup key”.

Recovery code

Step 3: After re-entering the key provided, you just need to complete the password entry step and the two authentication codes, the activation is complete.

Complete authentication

Backup code: Details cannot be forgotten

When using GA, you cannot ignore the backup code, as it will be the easiest way to restore your application if something goes wrong.

To get a backup code, you need to follow these steps:

Step 1: Follow steps 1, 2 and 3 in section 4.1

Step 2: Select “Backup code” in “set up an alternate second step”> You will get a backup code. Write them down and save them somewhere.

Backup code GA

How to recover when losing a phone

How to restore gmail

Use 1 of 10 backup codes that Google has provided to restore (see backup codes section).

How to restore GA code in an exchange account

In this case, the “backup key” provided by the exchange is the fastest way for you to recover. If not, you will need to contact the exchange’s support directly to reopen your account.

Here’s how to restore GA using a key:

Step 1: Reload the Google Authenticator app

Step 2: Select “enter the provided key”> Enter “backup key” into “your key” + the account name on the exchange you want to restore> Select “add”

Restore Google Authenticator on exchange

After selecting “add”, you are done with the restore. However, the recovery code will not have the same floor name as the original code. That’s why you have to remember it yourself.

Restore Google Authenticator on exchange


Google Authenticator is an extremely important application for those who are entering the crypto market. Therefore, CHK hopes that through the above article, you can use GA more easily. Good luck!

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