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How to transfer Google authentication when changing smartphones
When changing to a new mobile phone, you're probably wondering how to set up Google authentication (2FA). In fact, it's easier than you might think.
There are two methods.
Method 1: Via QR Code (Recommended)
Method 2: Manual Entry of Recovery Key
Important Points
Before initializing the old device, make sure that the authentication code is generated correctly on the new device. If it does not work, there may be a possibility that the time synchronization is off, so please try to synchronize.
Just to be safe, make sure to keep your backup code in a secure place. It is the only way to recover if you lose your device.