Error : DEP6200 : Bootstrapping 'Device' failed. Device cannot be found

Steps that helped me. I have windows 10 mobile build 10581 (and now 10586) installed on phone

  1. Turn off Developer mode on your phone.
  2. Deploy app (UWP or SL) by VS2015 -> Error.
  3. Turn on Developer mode on your phone.
  4. Deploy app (UWP or SL) by VS2015 -> Working.

If you change another device or re-connect you must close VS2015, re-launch and do again!


Finally managed to find a solution to this illusive bug.

It seems that if I didn't have the Windows Phone 8.1 Tools installed I couldn't build to an ARM device (not even Windows 10 Mobile).

So my step to solve this was: Go to Control Panel -> Programs and Features -> Microsoft Visual Studio ... 2015 -> Modify. And then select the Windows Phone 8.1 Tools.

Pretty pissed that one can't get a reasonable error message when things like this is missing.