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I don't know about wifi but I don't use voice commands for the remote and it works just fine.
Sorry, there was a problem. Please try again later.Hi there - The QN90A will need to have an Internet connection (LAN or Wi-Fi) to access the TV's Smart features such as the App Store or built-in voice assistants. You can take advantage of hands-free Alexa and Bixby voice commands when the Voice Wake-Up function is enabled (Settings > Voice Wake-Up). ^Gina
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