With an iOS device (such as: iPhone 5, iPhone 4S, iPhone 4, iPad Retina, iPad 2, iPad Mini) I haven’t had issues retrieving Contacts, Calendars, Messages, Message attachments, call history, notes, voice memos, and bookmarks. However, photos is a different story. If a photo has been deleted from an iOS device and then further photos are taken, the photo appears to be gone forever. I could be wrong, but thus far I don’t see a temporary flash storage for the photos. Even though the photo is skipped in the naming process (ie. img_1001.JPG, img_1003.JPG), its permanently overwritten by the following photo that is taken by the device. I have tried every data retrieving technique used on flash drives, and the data is just not there.
Drop a comment if you have figured out a technique to retrieve deleted photos from an iOS device.