If you want to move your tokens from one device to another, then the process is simple. Open the Google Authenticator app and tap 3 dots in the top-right corner of the screen, then tap “export accounts”, choose services that you want to move, and click export. Note, that you can export only 10 services at once. If you have more than 10 services, simply repeat this process. A QR code will show up on your screen. Now open your 2FAS app on another device, go to the menu, “Import tokens”, choose “Google authenticator” and “Scan QR code”, or you can just tap the plus icon on the main screen and tap “Scan the QR code.” Now point your camera at the Google Authenticator’s QR code, and the transfer will be complete.
If you’re using the same phone to transfer your tokens, then the first part of the process is the same.
On iOS devices, you can take a screenshot of the QR code. On the scanning screen in the 2FAS app, there is a small icon in the bottom-right corner. Please tap it and upload the screenshot of the QR code. Or if you’re on the “Import tokens” screen, tap the “Choose QR code” option.
Android, unfortunately, doesn’t allow you to take screenshots in the Google Authenticator app, so you have to take a picture of the QR code with another device and scan the picture with the 2FAS app or transfer your picture to your phone. The rest of the process is the same as on iOS devices.