If you set up 2-Step Verification using SMS text message or Voice call and also want to be able to generate codes using your mobile device, you can use the Google Authenticator app to receive codes even if you don’t have an Internet connection or mobile service.
To set this up, first you need to complete SMS/Voice setup. Then, follow the directions for your type of device explained below.
Turn on 2-Step Verification
When you enable 2-Step Verification (also known as two-factor authentication), you add an extra layer of security to your account. You sign in with something you know (your password) and something you have (a code sent to your phone).
Set up 2-Step Verification
- Go to the 2-Step Verification page. You might have to sign in to your Google Account.
- Select Get started.
- Follow the step-by-step setup process.
Once you’re finished, you’ll be taken to the 2-Step Verification settings page. Review your settings and add multiple verification methods. The next time you sign in, you’ll receive a text message with a verification code. You also have the option of using a Security Key for 2-Step Verification.
Note: To ensure that you can access your account in the future, add an email recovery option as well.
Android Set Up
Download the app
Set up the app
- If you haven’t already, turn on 2-Step Verification for your account using your phone number.
- On your computer, go to the 2-Step Verification settings page.
- Scroll to “Set up alternative second step.”
- Under “Authenticator app,” click Set up.
- On your Android phone or tablet, open the Google Authenticator application.
- If this is the first time you’ve used Authenticator, tap Begin. To add a new account, in the bottom right, choose Add .
- To link your mobile device to your account:
- Using QR code: Select Scan a barcode. If the Authenticator app cannot locate a barcode scanner app on your mobile device, you might be prompted to download and install one. If you want to install a barcode scanner app so you can complete the setup process, select Install, then go through the installation process. Once the app is installed, reopen Google Authenticator, then point your camera at the QR code on your computer screen.
- Using secret key: Select Enter a provided key, then enter the email address of your Google Account in the “Enter account name” box. Next, enter the secret key on your computer screen under Enter code. Make sure you’ve chosen to make the key Time based, then select Add.
- To test that the application is working, enter the verification code on your mobile device into the box on your computer under Entercode, then click Verify.
- If your code is correct, you will see a confirmation message. Click Done to continue the setup process. If your code is incorrect, try generating a new verification code on your mobile device, then entering it on your computer. If you’re still having trouble, you might want to verify that the time on your device is correct.