I had a similar problem with testing Android SDK (v2 beta 5). This turned out to be ridiculously obvious after I spent too much time trying to solve the problem in the code and analytics.xml. This may not be an OP problem, but it was here that I ended the search when I had the same problem, so I hope this helps. Shortly speaking...
Emulator Device Information May Confuse Google Analytics
I tested a lot of these calls on an emulator. Despite the fact that my custom emulator was based roughly on the Galaxy Nexus ( hw.device.manufacture: Googleand hw.device.name: Galaxy Nexusaccording to the Android Virtual Device Manager, it came in at runtime Manufacturer = "unknown"and Model = "Android SDK built for x86"). As a result, Google Analytics decided what constitutes “(not installed)” for almost all the device properties that they saved.
, SDK.