Last month I reviewed Tronsmart Prometheus, and I was pretty satisfied with the device except some bugs. There’s no a firmware update that should fix AC3/DTS static noise issues in this set-top box. Prometheus also becomes one of the first set-top boxes to support the latest Android Jelly Bean 4.2, and comes with an XBMC version supporting hardware decode using XBMC user interface, and not an external media player such as DicePlayer or MX Player.
I’m on the road, so I can’t try the firmware myself right now (which also explains why I haven’t posted in the last few days), but Geekuying has upload a short video showing XBMC with video hardware acceleration on the device. (Previous firmware in Android 4.1.2).