iPhoto doesn't recognize iphone6plus, can't load all thumbnail, freezes during import. Please help
I've been importing photos from iphone to iphoto for couple of years with not any major issue. However, since I got the iphone 6 plus, there always seem to have some issue when importing, iphoto freezes during import, can't recognize iphone, etc. It just kept getting more and more difficult to import.
Sometimes my mac air and imac will not recognize my phone when it's connected. However, iTunes recognize my phone all the time. I've tried changing cable, use the original cable, clean up lightening port. Sometimes it works, but not always.
In occasions when iphone were recognized, not all photos thumbnails are showing. I currently have about 5000 photos on my iphone taking up about 15GB of space. (not all photos are taken by the camera roll (not sure if this is relevant)). I have tried rebuild thumbnail, restore and rebuild iphoto database... When I tried to import without all the thumbnails are ready, iphoto freezes.
I don't know how to pose one single question to describe my problem. It just seems I run into problem every step of the way when I'm trying to import. It's never smooths. I got stuck at different stage of photo transferring. Please help! Thanks in advance!
iPhone 6 Plus, iOS 8.1.3