Restoring data using ASUS Backup may fail due to insufficient free space of your internal storage. Ensure that there is enough free space in your internal storage when you are restoring your data or apps.
We recommend that you allot at least 2.5x of free space (compared with the data/app you backed up) to minimize the chance of restoration failure.
Tip: You can temporarily move your photos/videos from your internal storage to an external microSD card/storage. After the data is properly restored, move the photos/videos back to your device's internal storage.