You can try using a recovery program such as Android Data Recovery but there isn't a guarantee that it will work.
Click here: http://www.recovery-android.com/recover-data-from-android.html
Download/run the program and try to recover any files.
Please take a minute and use the rating system to rate our session as EXCELLENT, GOOD, or OK and press Submit so I am credited with helping you.
Unfortunately, there are not very many options for data recovery on a phone. If that program did not work then there isn't anything that can be done.