I'm facing just connection problem via usb, device not recognized, installation failed. Like marshmallow is totally blocking inside memory where files and edited photos are from windows access. Camera isn't any better, comparing to camera on KitKat out from the box any further update makes 20,7 megapixel closer to LG's 5 Mpix... Probably just to sell the phone and jump for newer model and spend money to sony. Why we can't keep the Z2's premiere performance and quality?