This article explains how to restore the Dell Aero smartphone to factory default condition, erase all data, create a data backup, and restore a data backup.
Touch the Backup icon on the Home screen and touch the Backup tab.
Select the items you wish to backup from the list shown.
Touch the Options icon and select To Storage Card.
Note:
If the phone is connected to the computer in USB Mass Storage (UMS) mode, backup cannot be performed to the microSD card. Disconnect the phone from the computer before proceeding to make a backup
Input the name of the backup file and touch OK.
When you see the message Backup is finished touch OK.