Of cource! you can recover your files by some free recovery software, such as Recuva, Easy Recovery, etc, but they can not recover 100% data in a devices,.If you choose one of them, remember that do not use your phone before you have retrieve all the data, because new data will overwrite the space where the original data save in. If you want to recover all the data , you can know more here : http://www.card-data-recovery.com/windows-data-recovery.htm