Hi leflo38,
Thank you for reaching out to our community.
I see that you need to know the procedure to validate the authorization to use an application from an unknown source, and you can’t find the menu. I would be more than pleased to help you with this, so don't worry.
Let me ask you a few crucial questions before we begin additional troubleshooting:
- Could you please confirm if you are trying to install the applications on the Google TV Streamer 4K?
- Is the application that you need to install into the list of applications compatible with Google TV Streamer TV 4K?
- Could you please let me know in which country you are?
In the meantime, I’m sharing with you the instructions for installing apps that weren't installed during the Google TV Streamer setup procedure, which are available in this article: Install apps on Google TV.
We do not recommend using apps that are not authorized and revised by Google and come
from unknown sources to protect your equipment, security, and privacy.
Thanks for your attention. I will be looking forward to your answer.
Best regards,
Virna
