Well, you can connect the device to a computer via USB cord and save any files (music, photos, videos, contacts, etc.) to the computer before you do the reset. Or you have the option of mailing all the data to yourself. That, however, could be very time consuming as mail has attachment size limitation. I would use the USB cord option and just save all the stuff to an empty folder on the computer. Once the device is good again you can then connect back to the computer and get your data back on the phone. I would leave a copy on the computer though. Just to be safe.