You may need to enable Developer Options on your phone (Settings > About Phone > Tap 'Build Number' 7 times) to allow the PC to communicate with the device.
http://zs.vivoglobal.com/download.php?sel-type=4 http- zs.vivoglobal.com download.php sel-type 4
If you are sending this link to someone to help them set up their device, here is a clear draft you can use: You may need to enable Developer Options on