Jagadeeshanram, Feb 16, 2019 : When i connected my OnePlus 6t phone to windows 10 pc it was showing usb device connected is not recognised. I tried in all possible ports, I changed cable and tried but no luck. I turned on the developer options and enabled usb debugging after that i could able to connect the one plus 6t to windows 10 pc. Once again when I turned off the developer options off same problem occurs. I could able to connect mobile to pc only when usb debugging options enabled.