I have the exact problem on my Nokia 930 Windows 8.1 phone. No use. I tried three different recovery software - Recuva, Jihosoft, Card Data Recovery. Looks like many others are frustrated by the loss of their photos as well. My problem arose from deleting the Pro images directly from the phone thinking I will retain the Pro_Highres images. When I deleted the Pro images, I guess Pro_Highres are gone as well. Some good pictures lost forever.