How to Set Up Google Authenticator on a New Phone

Switching phones when you have Google Authenticator set up on the old one can turn into a nightmare if you don’t do it right. I’ve seen people get locked out of their bank accounts, social media, and email because they didn’t transfer their 2FA codes properly. In this guide, I’ll show you how to set up Google Authenticator on a new phone, safely and without surprises.

Table of contents

Why it’s crucial to transfer Authenticator before switching phones

Google Authenticator generates two-factor verification codes (2FA) to protect your accounts. These codes are generated locally on your phone and aren’t synced to the cloud by default. This means if you switch phones without transferring the codes, you’ll lose access to all protected accounts.

Accounts that typically use Authenticator include:

• Google account (Gmail, Drive, etc.)
• Social media (Facebook, Twitter/X, Instagram)
• Bank accounts
• Hosting and domain services
• Trading platforms
• Cloud services (Dropbox, OneDrive)

The most common mistake I see: people sell or factory reset their old phone before transferring codes. Once the old phone is gone, regaining account access is a long and frustrating process that can take days or weeks.

Pro-tip: Never factory reset or sell your old phone until you’re 100% sure all your Authenticator codes are transferred and working on the new device.

Method 1: Transfer accounts directly (Android to Android)

If both phones are Android, the process is the simplest:

1. Open Google Authenticator on the new phone.
2. Tap the three dots (⋮) in the top right corner.
3. Select “Transfer accounts”.
4. Choose “Import accounts”.
5. The new phone will display a QR code.

Now on the old phone:

1. Open Google Authenticator.
2. Tap the three dots > “Transfer accounts”.
3. Select “Export accounts”.
4. Choose the accounts you want to transfer (or all of them).
5. Scan the QR code from the new phone.

The process is instant: all your accounts will appear on the new phone in seconds. Verify the codes match on both devices before resetting the old one.

Method 2: Use Google account sync

Since 2023, Google Authenticator allows syncing codes with your Google account. This is the safest way to transfer:

1. On the old phone, open Google Authenticator.
2. Tap your profile picture in the top right corner.
3. Verify it says “Connected to [your Google account]”.
4. If not connected, tap “Connect” and sign in.

On the new phone:

1. Download and install Google Authenticator.
2. Open the app and sign in with the same Google account.
3. All your codes will sync automatically.

Google account sync has advantages:

• Codes restore automatically on any device
• You don’t need the old phone for transfer
• If you lose your phone, you don’t lose codes
• Works even if the old phone breaks

But it also has risks:

• If someone accesses your Google account, they could see your codes
• Google technically has access to your 2FA codes
• For maximum security, some prefer not to sync

Method 3: Export codes manually

If the above methods don’t work, you can export codes manually:

1. On the old phone, open Google Authenticator.
2. Tap the three dots > “Transfer accounts”.
3. Select “Export accounts”.
4. The app will generate a QR code or text key for each account.
5. Screenshot each QR code or copy the keys.

On the new phone:

1. Open Google Authenticator.
2. Tap the ”+” button > “Scan QR code”.
3. Scan each captured QR code.

Alternatively, if you have text keys:

1. Tap the ”+” button > “Enter key”.
2. Enter the account name and secret key.
3. Save and verify the code matches.

Pro-tip: Save recovery keys for your most important accounts in a password manager like Bitwarden. This way, if you lose your phone, you can restore access without depending on Google Authenticator.

Setting up Authenticator on a new iPhone

If switching from Android to iPhone or iPhone to iPhone:

iPhone to iPhone:

1. On the old iPhone, open Google Authenticator.
2. Tap the three dots > “Transfer accounts” > “Export accounts”.
3. Select accounts to transfer.
4. On the new iPhone, open Authenticator > “Transfer accounts” > “Import”.
5. Scan the QR code.

Android to iPhone:

1. On Android, export accounts and generate QR codes.
2. On the iPhone, install Google Authenticator.
3. Import by scanning QR codes one by one.

iPhone to Android:

1. On iPhone, export and generate QR codes or text keys.
2. On Android, install Google Authenticator.
3. Import by scanning or entering keys manually.

Common troubleshooting

If the transfer fails:

Codes don’t match on both phones:

• Verify time is synced on both devices
• Enable automatic time: Settings > Date & time > Automatic
• Codes depend on the exact device time

Some accounts don’t appear after transfer:

• You may not have selected all accounts for export
• Repeat the export process selecting all accounts
• If it persists, export those accounts manually

QR code won’t scan:

• Make sure both phones have good lighting
• Move the new phone closer to the old phone’s QR code
• If the old phone screen is damaged, use the text key method

I don’t have the old phone:

• Use the recovery keys you saved when setting up 2FA
• Each service has an account recovery process
• Contact support for each service if you don’t have backup codes

What to do if you already lost the old phone

If you’re reading this after losing or factory resetting your phone without transferring codes, not all is lost. Here’s how to regain access:

Use recovery codes: When you set up 2FA on each service, you were given backup codes. These are single-use codes you can use instead of the Authenticator code. If you saved them (on paper, in a password manager, etc.), use them to log in and reconfigure Authenticator.

Account recovery process: Each service has a recovery process for when you lose 2FA. It usually involves:

1. Verifying your identity via email or SMS
2. Answering security questions
3. Waiting a review period (24-72 hours)
4. Submitting ID documentation (in some cases)

Banks typically have stricter processes. You may need to visit a physical branch with your ID to unlock access.

Contact each service’s support: If you don’t have recovery codes and the automatic process doesn’t work, contact support. Explain your situation and provide the information they request. Google, for example, can verify your identity through questions about your account.

Urgent tip: If you just lost your phone, immediately change your Google account password from a computer. This prevents anyone with access to your phone from using the Authenticator codes.

FAQ

What happens if I lose my phone with Google Authenticator?

If you have Google account sync enabled, simply sign in on the new phone. If you don’t, you’ll need recovery keys for each service. Always save backup keys in a safe place.

Can I use Google Authenticator on multiple phones at once?

Yes. If you use Google account sync, codes appear on all connected devices. If not, you can export codes to multiple devices.

Is Google Authenticator better than Authy?

It depends. Authy syncs automatically with the cloud and works on multiple devices, making transfers easier. Google Authenticator is more secure by not syncing by default, but less convenient when switching phones. For ease of use, Authy. For pure security, Google Authenticator.

Can I migrate from Google Authenticator to Authy?

Yes. Export your Google Authenticator accounts as QR codes and import them into Authy. The process is the same as transferring between devices.

Conclusion

Setting up Google Authenticator on a new phone is straightforward if you follow the right steps. The most important thing is to transfer before factory resetting the old phone. Use Google account sync for maximum convenience, or export manually if you prefer full control. Always save recovery keys for your most important accounts and you’ll never get locked out of your protected accounts.