Can't select android device in Unity editor settings?

Hi there,

I am trying to develop games for android but I can’t properly test the games I made because unity remote 4 doesnt work for me…
I have taken all the steps to developping android games but I cant select an android device in the Unity Editor settings, as you can see below:


Any help is appreciated!

Most of the time it is a driver problem. For me it worked once I installed the Google USB drivers from the Android SDK and told Windows in the device manager to use them for my nexus 7 tablet.

Need to restart Unity3D afterwards before it gets recognized.