Using your downloaded app use this URL
If you receive the error unable to install please allow all unknown sources
1. From the Fire TV or Fire TV Stick's home screen, scroll to “Settings”.
2. Next, scroll to the right and select “Device”.
3. Next, scroll down and select “Developer options”.
4. Then select “Apps from Unknown Sources” to turn the option to “ON”.
Install the app
Enter "any name" = Universal IPTV
Sign In with user and password.