I've just performed a root of my Nexus 5 with CF auto root. Just after that,I started my phone, and I've tried to recover my data with DiskDigger application. I tried to recover JPG and PNG. During the search on my storage, I went through my phone on different applications. Then I came back on DiskDigger then I ve seen screenshots of my activity (i.e. in the play store, in my calendar, in contacts...) I ve also seen screenshots of the welcome android page (when you log for time on your phone after you ve just erased everything).
Is this normal ? (It doesn't seem to me...)