There must a lot of people have had the experience of accidentally format data on their phones. Last week, one of my friends just did that and lost some of those very important files on his Samsung Galaxy Ace. And this is not the first time to lose data by improper operations; he also deleted some videos he took at his girlfriend's birthday party by clicking "Delete" button. I still remember how upset he was at that time. I don't want to see his disappointing face again this time, so I decide to find a way to help him recover all the data from his Samsung Galaxy Ace on Mac.