Samsung Tizen Tv integration issue

Hi,
I am trying to integrate Samsung HG43AJ690UBXXL Tizen TV with our existing IPTV solution which is already integrated with other Samsung smart Tv models like AC, AB and AD models.

For this Tizen TV we have created a .wgt file using tizen studio, and from its index.html we are redirecting to our external server portal’s html page and which is working fine.
In our home page we have registered the following keys by this :-

tizen.tvinputdevice.registerKey(“ChannelUp”);
tizen.tvinputdevice.registerKey(“ChannelDown”);
tizen.tvinputdevice.registerKeyBatch([‘0’, ‘1’, ‘2’, ‘3’, ‘4’, ‘5’, ‘6’, ‘7’, ‘8’, ‘9’]);
tizen.tvinputdevice.registerKey(“Ok”);
tizen.tvinputdevice.registerKey(“Home”);
tizen.tvinputdevice.registerKey(“Return”);
tizen.tvinputdevice.registerKey(“ArrowLeft”);
tizen.tvinputdevice.registerKey(“ArrowUp”);
tizen.tvinputdevice.registerKey(“ArrowRight”);
tizen.tvinputdevice.registerKey(“ArrowDown”);

But the issue we are facing is :-

  1. Our solution is in 1980 X 720 , but it is showing in something other resolution.
  2. we can handle only four Arrow keys now.

Please let us know if any wrong we have written or how to resolve the above mentioned issues.