Authenticator App Not Working on New Phone? Here's the Solution

Why Google Authenticator Doesn't "Just Work" on New Phones

Unlike many apps that sync via the cloud, Google Authenticator (by default) stores secrets locally on your device hardware for maximum security. This means simply logging into your Google account on a new phone won't automatically bring your 2FA codes over.

Step-by-Step: How to Fix & Transfer Your Codes

Method 1: Use the Official Export Feature (Requires Old Phone)

If you still have access to your old device, follow these steps:

1. Open Google Authenticator on your old phone.
2. Tap the menu icon (three dots or lines) and select "Transfer accounts".
3. Select "Export accounts" and choose the ones you want to move.
4. A QR code will appear. Scan this with the app on your new phone.

Method 2: What if my old phone is broken or sold?

This is where it gets tricky. If you don't have the old phone, you must use the Backup Codes you were given when you first set up 2FA for each service (Gmail, Facebook, GitHub, etc.).

Common Troubleshooting Tips

• Time Sync: Go to Settings > Time Correction for Codes > Sync now. If your phone's clock is off by even a few seconds, the codes won't work.
• App Updates: Ensure you are running the latest version of the app from the App Store or Play Store.
• Cloud Backup: Google recently added cloud sync. Check if you had this enabled on your old device settings.

Take Control of Your 2FA Data

Don't let your security codes be trapped in a single device. By using GAuth Exporter, you can seamlessly migrate your accounts to any platform you choose, including Apple Watch for quick access.