- Connect your iOS device to your Mac and launch iTunes.

- Look for the tiny little icon that looks like an iPhone next to the little drop-down menu in the iTunes menus and tabs - area. Click the iPhone icon.

- On left, click on Apps under settings.

- Scroll down to File sharing section.

- Under Apps tab, select Authenticator

- Drag the “BackUp” folder into Authenticator Documents section. (Note: Folder name should be “BackUp” under which - “authplus.db” will be there.)

- Now go to Settings->Advanced.

- Click on Restore from Backup button.