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How to Use an Old Android Phone as a TV Remote

Use Google TV, Roku’s official app, or SmartThings to control compatible devices with an old Android phone. Learn the pairing and network requirements—and why older infrared-only TVs need separate hardware checks.
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You can use an old Android phone as a TV remote if the device you want to control supports a compatible app: Google TV for Android TV and supported Google streaming devices, Roku’s official app for supported Roku players and TVs, or SmartThings for supported Samsung TVs and projectors. These are separate ecosystem-specific options, not one universal app. They also do not establish that your phone can control an older, non-smart TV over infrared.

Choose the phone remote app for your TV

Start with the streaming device or TV platform you need to control, then check the relevant requirements and connection method.

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Target device App and requirements Setup conditions
Android TV Google TV app For Wi-Fi control, the phone and TV must be on the same network. Pair by entering the code displayed on the TV. Google’s Android TV instructions.
Chromecast with Google TV or Google TV Streamer Google Home or Google TV; Google lists Google TV for Android version 4.27.8.93 or later for the Google TV app route In Google TV, use Connect TV, choose the device, enter its on-screen code, and tap Pair. The remote supports navigation, playback, phone-keyboard typing, and access to settings, bookmarks, and inputs. Google’s streaming-device instructions.
Roku player or Roku TV Official Roku mobile app; Android 5.0 or later. The Roku device must run Roku OS 6.2 or later, and features vary by device. Phone and Roku device must be on the same Wi-Fi network. Open the app, wait for discovery, and select the device. Some functions may require a Roku account. Roku’s app instructions.
Supported Samsung TV or projector Samsung SmartThings Add the TV or projector to SmartThings to display its on-screen remote. Samsung Account and internet access are required for network-based smart services; available controls vary. Samsung’s SmartThings instructions.

These documented methods use network discovery, pairing, or an account—not the phone’s infrared hardware. The support pages do not provide a head-to-head test of speed or reliability, so there is no evidence-based winner across the apps.

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Set up Google TV for Android TV

  1. Connect the Android phone and Android TV to the same Wi-Fi network if using the Wi-Fi route.
  2. Open the Google TV app on the phone and tap Connect TV.
  3. Choose the TV or device from the list.
  4. Enter the code shown on the TV, then tap Pair.

For Chromecast with Google TV or Google TV Streamer, Google also documents control through Google Home. In Google TV, the Connect TV and pairing-code flow provides the phone remote; Google lists version 4.27.8.93 or later of Google TV for Android for this route. The app can use the phone keyboard for text entry as well as swipes for navigation and playback controls.

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Set up Roku’s official Android app

  1. Install the official Roku mobile app on an Android phone running Android 5.0 or later.
  2. Connect the phone and Roku player or Roku TV to the same Wi-Fi network.
  3. Open the app and wait for it to discover the Roku device.
  4. Select the Roku device in the app.

Roku’s support guidance recommends its official app and advises against third-party Roku remote apps for security reasons. Roku devices must run Roku OS 6.2 or later; the available app features can differ by device, and some functions may require a Roku account. See Roku’s setup and compatibility details.

Set up SmartThings for a Samsung TV or projector

  1. Add the supported Samsung TV or projector to SmartThings.
  2. Open the device in SmartThings to display its on-screen remote.
  3. Use the controls available for that model.

Depending on the device, the remote can offer volume, channel, mute, Home, Back, Guide, and navigation controls. Samsung says a Samsung Account and internet connection are required for network-based smart services. Check Samsung’s SmartThings support page for the setup route.

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What if the TV is older and has no smart features?

The app routes above do not prove that an Android phone can control a non-smart TV using infrared. That depends on hardware: whether the specific phone has an IR emitter or supports a compatible accessory, and whether that hardware can control the specific TV.

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Sony documents IR control and optional IR Blaster cables for certain Sony TV and set-top-box configurations, while warning that its feature is not compatible with all set-top boxes. That guidance does not establish that an arbitrary Android phone has an IR emitter or that a generic plug-in IR dongle will work with it. Identify the phone and TV models, then check their manufacturer support information before relying on IR. Sony’s documented configurations are described at Sony’s IR control support page.

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What “universal” means here

An old phone can be a convenient remote for compatible network-connected devices, but the documented options are platform-specific. Choose Google TV for supported Android TV and Google streaming devices, Roku’s app for supported Roku equipment, or SmartThings for supported Samsung TVs and projectors. A single app that controls every TV—including older infrared-only sets—is not established by these instructions.

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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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