So my sister, who owns a s3 complained about lag so I told her I could make it better by installing cyanogenmod. I installed recovery and everything, factory reset from cwm and then flashed. It installed well. But now her whole internal sd card got erased by the factory reset (including the backup I made). I had no idea this was gonna happen as I myself dont own a s3. She is really pissed off at me cause she had a really really really important recording in her internal sdcard. Now my question is. Can I use a windows software tool to restore her internal sdcard (like you can on harddrives) or will that mess up the system partition??
Need expert help. Thank you so much, sincerely