Allow App Installations from Unknown Sources - Samsung The Frame

I want to Allow App Installations from Unknown Sources - on my Samsung 32’’ The Frame which I bought last year.
I was able to enable development mode via 12345 but I could not find this above App Installations from Unknown Sources on my setting.
On my Tv there is no security options.
Can you advice me where else it can be?

As I said elsewhere you have to use Tizen Studio not Android. If you are trying to install an Android TV app you are out of luck.

You will also need to be a Samsung Author and Samsung Distributor certificate to install any TPK (Tizen version of APK) on your device.

Hope this helps.

Ron
Samsung Developer Relations

Many thanks for your time. You save me out of a lot trouble!