2FAS Auth review
If I’m changing phones, I want the codes for my site and email working while the old phone is still on my desk. 2FAS Auth has two ways to bring them over. Which one I’d use depends on whether I’m staying with the same kind of phone.
Same platform or a fresh start?
The app’s backup settings use iCloud on iPhone and Google Drive on Android. On the same platform, I’d check that backup is on and that both phones use the same cloud account. If I’m moving between iPhone and Android, the documented route is a file. Export it from 2FAS Backup on the old phone, set a password for the export, then import it on the new one. The password matters because the app can also export a file whose secrets are readable as plain text.
Make sure the new phone can actually sign in
I’d try a login for my email and the site dashboard before wiping the old phone. Each test tells me whether the new authenticator works for that particular account. I’d also keep the recovery codes those services issue. They’re a separate way back in if I lose access to the authenticator. Our Bitwarden review covers another file I’d plan for separately, the backup of the passwords themselves.
Anabel’s take
I’d do the move before trading in the old phone. If it was already gone, I’d look for my saved recovery codes first. A fresh install on its own won’t bring back the old tokens.