If you’ve still signed into the account on another device, you may be in luck. Open your account settings and reset the authenticator, that is, link it to the app on the new phone. The item you need is usually somewhere on the Security tab. For example, this option works with Google accounts if you are even signed in to one of the company’s applications, such as YouTube. Some (but not all) services even show the authenticator’s secret key or QR code in settings. In that case, just enter the secret key or scan the QR code in the authentication app on the new device and you’re done. Unfortunately, this method doesn’t always work. The problem is that not all services use the same settings in the web version as in the mobile application. The option you need may simply not work on the device you are signed in to. https://www.webtfn.com/how-to-restore-or-reset-google-authenticator/
