: Go to Settings > System (or Device/Security) > Developer Options and toggle on Install unknown apps for your file manager or downloader app.
: Create a custom side panel or "dock" to access your favorite apps or system settings from any screen. Prx_pro_V1.3TV.apk
: Use a browser or a tool like the Downloader app to enter the URL for the Prx_pro_V1.3TV.apk file. Install : Open the downloaded file and select Install . : Go to Settings > System (or Device/Security)