Install Android Driver
Connect DPVR All-in-One (eg. M2, M2 Pro, P1, etc.) to PC via USB cable
Install the Google Android Device driver. You can find one in Android SDK.
Please download and install JDK:
Install Android SDK
Please download and install Android SDK. You can find it in ADT or Android Studio.
Android Environment Setup in Unity
1) Please make sure the "Android Build Support" option is checked when installing Unity. Please note that for Unity 2019.1.0, developer must go to https://unity3d.com/cn/unity/whats-new/2019.1.0 to download and install the Android Target Support.
2) Correctly set Android JDK and SDK path in Edit-Preferences-External Tools