Do you have a great Google Chromecast with Google TV that you don’t want the horrible default launcher (my opinion, all I want is my apps nothing else, I love my Roku, but Channels-DVR doesn’t work with Roku :-() Here is how to install a new one. Today we will be setting up the ATV Launcher (Google Play Store Links below). It’s very easy. ATV Launcher: LINK
ATV Launcher Pro: LINK
Even if you check the Dual 4G Networks that doesn’t actually seem to do anything so you to go into the secret menu and enable it. I wish it just worked out of the box. It probably will eventually.
1) Go to the dialer and enter: *#800#
Select Enter
Go to Logkit
Swipe down to function switch
Tick VoLTE and/or VoWiFi switch
Reboot
Once that is complete, you can toggle the “Dual 4g” networks switch and actually get the Wifi-Calling & VoLTE options available for your 2nd Sim.