DUDU-Meng don't you think that too many features on DUDU starting to be non functioning outside China?
There is nothing in the sales materials to say some functionality is only available in China. That's quite false advertising and people paid good money for your product. It's also sneaky to include that functions ("navigation" widget, replace name with navi app name, current street location in status bar, TTS engine for smart reminders, etc) in the global release, people scratching heads that they're stupid because it's not working, so something in the settings.. 
Even more, devs are immune to suggestions to take a look how exactly these functions are resolved in one of the best car launchers FCC Car launcher (including media player that harvests covers with no problem, from any app dynamically playing, while Dudu music widget is so buggy that I don't get why it's even there, including lyrics that manically are preserved in all layouts with proud "no lyrics").