Wego 2 with Nvidia Shield problem

I'm trying to pair a Wego 2 with a Nvidia Shield and it's not working. It does not appears the option "Connect with MIDI device". Any idea why it's no working?
Closed forum. You can only use it as a source of information about MixVibes software
http://forum.mixvibes.com/
RoJeC wrote:Which Cross version do you use.
Which OS version do you use.
If you register your license key you can upgrade to version 3.3.11.
RoJeC wrote:Sorry, you can't register. I hadn't noticed this topic is on android.
Does the Shield have an OTG connection?