title: why visual studio does not detect my external device with xamarin?
body: <p>I want to run my application in visual studio 2015 with a Xiaomi redmi note 4 device, but it does not show it to me in the toolbar.</p>
  
  <p>I have the developer mode activated and the debug mode activated in the same way, but the device does not appear.</p>
  
  <p><a href="https://i.stack.imgur.com/L3BkP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/L3BkP.png" alt="enter image description here"></a></p>