Your deleted data might be on the Android phone internal memory or sd card. It is mostly straight forward to restore data if you had data on the sd card. This would be same as restoring from laptop hard drive. One of the things you need to do remember when you try to restore data from Android phone is you should not create or copy new data on to Android device, this might overwrite your lost data. Also, you need to recover data to separate drive or location if possible.