I've seen multiple people have this same issue, and it has never been solved, not once.
When I transferred photos from my sim card that I took using a canon camera, all of the files said they were locked, and came up with a little bar in the bottom of the little preview window for each file...
As an amateur photographer, I often take RAW photos. Sometimes I'm on the road and would like to transfer my photos to my FileHub Plus, which basically provides a shared folder on its private wifi network (and I have a regular USB hard drive connected to it).
I tried different scenarios...