Generally when you look at a cell phones storage you need to either look at internal memory or a SIM storage chip. If the files are not on internal memory you may need to remove the chip and using an adapter plug it into the pc. I had to do that for a photo and now only save to internal memory to avoid the problem.
The other option is to download Blackberry LINK for Mac OS. I use that and it shows all files.
read here https://us.blackberry.com/software/d...lackberry-link