I am trying to copy off the photos on an Iphone 5S for a friend. I plug the phone into my windows 10 PC, file browse to the phone DCIM folder, I can only see 3 photos. On the phone it tells me there is 3500 photos which I can see on the phone. 

I tried using Itunes, clicking on the photo folder in Itunes gives me the message Icloud phots is turned on.

I tried accessing the phone from a Linux live distro, I still see the same 3 photos I see in windows.

Any hand hints on why I can't access all the photos on the phone?