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by aftbit 4268 days ago
If you can, export the secrets from the phone and import them on the new device. Of course, if the phone isn't rooted, that might be difficult.

Authy offers a cloud backup service, where they encrypt the secrets with a key derived from your password. They use PBKDF2 with only 1000 rounds, so pick a very high entropy password.

http://blog.authy.com/backups