You must go to your device's security settings and enable "Apps from Unknown Sources".
Most users use the Downloader app by FTV News to fetch the APK file directly on their Firestick or Android TV. Download VIVATV [MOD EXTRA] apk
Modified files can contain hidden malicious code designed to spy on users or steal data. Scans of some VivaTV APKs on VirusTotal have flagged suspicious files. You must go to your device's security settings
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