Ok so I have an 8+; not quite a year old yet. It has a possible speaker issue that I plan on taking it to the Apple Store for. So I'm backing up my pictures from my phone to my external hard drive. Yes they are backed up online but still it never hurts. So I start copying and it works fine for the first group of pictures. I start copying some more; a larger group and an error message pops up that the device has shut down unexpectedly. The iphone is no longer showing on my computer. I tried different USB spots on the computer; I am using an apple cord. ITunes sees the phone and will back it up et, but the computer doesn't. I will try it tomorrow at the work computer. But has anyone heard of this before? I've never had weird problems with my phone since the 4s and I can't remember what it was; but it solved over apple chat. It's just weird.