I am having the same problem. If I connect my S6 via USB I can drag and drop photos to my computer. When I connect my S7 with the same USB cable, select file explorer, select the Samsung device, ...
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I am having the same problem. If I connect my S6 via USB I can drag and drop photos to my computer. When I connect my S7 with the same USB cable, select file explorer, select the Samsung device, select open, select DCIM, select camera the photos will come up. If I then try to drag and drop one to another file I get a message that says A device attached to the system is not functioning. I have downloaded the S7 software and also updated the S7 drivers from the Samsung website. I also went into settings enable developer options and turn USB debugging on as some have suggested but that didn't work either. I have selected file transfer in the phones drop down menu. I have also restarted both the phone and computer. Still doesn't work. The computer is Windows 10. I have run out of things to try. Any suggestions?