Importing Photos from iPhone 7plus to Windows 10 PC stops after a few photos

Mark.NL · Aug 22, 2020

in the W10 Photo app, all the pictures are found, but after importing a few images it says "something went wrong" (no further info is given, link provided goes to generic site about importing photos, not about errors)
through Windows Explorer import, it similarly stops importing with a "device unreachable error" after a few images
when I use the copy/paste solution I also get "device unreachable" after a few images

Solutions I found online and tried

reinstalling iTunes app through Windows store
setting iPhone Photo app to "Keep originals" (see here)
tried 2nd USB cable (both are original)
tried on a friend's laptop and on my work laptop (work laptop does not have iTunes, not sure about friend's laptop but I think it has)
installed iCloud fotostream on my PC (photos won't download, according to Apple's instructions I should see a Download button somewhere but did not find it)
download via iCloud website (it gets a large portion of the images but not all)

Setup

Other things

I don't get the "trust this PC" prompt on the iPhone each time I connect, only sometimes
the iPhone is displayed in Windows Explorer as a generic drive (called Apple iPhone), you don't see an icon that looks like a phone (like I think was present for my previous iPhone)

Tests

making a backup copy of the iPhone through iTunes works (so connection appears to work fine and stable for much longer than the image import process, that quits much quicker
importing was not a problem with my previous iPhone (6S)
iTunes diagnostic tests:
- network connections: all tests succeed
- connected devices: all tests succeed, iphone found,but oddly enough it says it did not find a USB port. All support services (ipod, mobile device, itunes helper) active
- Synchronisation: all tests succeed