Photos and Camera usage on iOS
Go to Settings > General > Date &amp; Time Untoggle "Set Automatically"
Manually set the date a year or two in the past
Open "Photos"
Select "Albums"

If, like me, you had already cleared out everything from the
Camera Roll and "Recently Deleted" folder, you'll smile to see that
your "Recently Deleted" folder now has thousands of images back.
Those are your phantom photos Open it, "Select" and start deleting
Return to "Date &amp; Time" and fix your clock


Now, go back into Settings > General > Usage > Storage > Manage Storage. You'll notice your Photo &amp; Camera is empty if you deleted everything