Yes, it can. To activate this option, please:
- Open G Cloud App.
- Tap the Menu icon
in the upper left corner of the app.
- Open Settings.
- Tap the Automatic Backup option.
- Change the Connection Type to Any connection (3G/WiFi…).
- Open G Cloud App.
- Go to the menu in the upper left corner.
- Tap on Settings.
- Tap on Use Cellular Data.
If at anytime you run the backup manually, G Cloud will use any available connection.