How do i get back my facebook authenticator?

Microsoft Authenticator can back up and restore third-party accounts like Facebook, but only if backup was enabled on the old phone and the restore is done correctly on the same platform type (iOS→iOS or Android→Android).

Use these steps depending on device type and situation:

1. Confirm backup/restore limitations

• Accounts backed up on iOS cannot be restored on Android, and vice versa.
• Third‑party accounts (like Facebook) that use 30‑second one‑time password codes are included in Authenticator backup and will be available once restored.

2. If the old phone was iOS and the new phone is also iOS On the old phone (must have been done before it was lost):

• iCloud Drive, iCloud Keychain, and iCloud Backup must have been enabled, and Authenticator must have been allowed in “Saved to iCloud”.

On the new iOS device:

1. Enable iCloud Drive, iCloud Keychain, and iCloud Backup on the device using the same Apple ID that was used on the old phone.
2. Install Microsoft Authenticator from the App Store.
3. Open Authenticator; if the backup is detected, restore the accounts.
4. For Facebook (a third‑party account), the time‑based codes should appear automatically once restored.

If the backup does not appear on iOS:

• Uninstall and reinstall the Authenticator app on the new device; then open it again so it can detect the iCloud backup.

3. If the old phone was Android and the new phone is also Android
4. Install Microsoft Authenticator on the new Android device.
5. Before signing into any account in the app, select Restore from backup or Begin recovery.
6. Sign in with the same personal Microsoft account that was used to configure backup on the old phone.
7. After restore completes, the Facebook one‑time password entry should be available again.

If Restore from backup is not visible on Android:

• Remove or sign out of all accounts in Authenticator, then reopen the app so the Restore from backup or Begin recovery option appears.

4. If backup was never enabled or platform changed (iOS→Android or Android→iOS)

• The Facebook entry in Authenticator cannot be recovered.
• In that case, recovery must be done directly with Facebook (for example, using Facebook’s own account recovery or security options) and then Facebook must be added again as a new third‑party account in Microsoft Authenticator once access is regained.

5. After restore: what to expect for Facebook

• Facebook uses a 30‑second one‑time password code, so after a successful Authenticator restore, the codes will be available and can be used to sign in.

References:

• Back up your accounts in Microsoft Authenticator
• Restore account credentials from Microsoft Authenticator
• Microsoft Authenticator FAQs