If you are trying to install a third-party IPTV app or the "Phoenix" addon for Kodi, follow these steps for a Firestick or Android TV: 1. Enable Apps from Unknown Sources
Depending on what you mean by "Phoenix," there are two common apps. One is a available on the Google Play Store, and the other is a third-party IPTV player or Kodi add-on usually sideloaded onto devices like Firesticks or Android boxes. Choice 1: Phoenix Browser (Official Store)
Enter the or login credentials (Username/Password) provided by your IPTV service provider. Important Safety Tips How to Install Smarters Pro on Firestick (full guide 2025)
To install apps not found in the official store, you must give your device permission.
Go to Settings > My Fire TV > About . Click your device name 7 times to enable "Developer Options". Return to the previous menu, open Developer Options , and turn on "Install Unknown Apps" for the Downloader app.