I have a rockchip based Android tv box with heavily modified firmware. The box does not support 3g by default and I am trying to get the mobile data connection to work. I have understood that the Phone.apk and telephony provider apk has to be installed to /system/app. The logs report that the mobile data is enabled and the the phone service is running. However there is no mobile data in Settings and the Dialer app is not shown in launcher application list. What prevents them from showing up ?