How to Use an Old Phone as a TV Remote Control

5 min read

An old phone sitting in a drawer can become a TV remote control with a little setup. Many older phones include an infrared blaster that sends the same signals as a physical remote, and every phone can run a Wi-Fi remote app for a smart TV. Either route rescues a lost remote and gives an old device a second job.

This guide shows how to use an old phone as a TV remote control. You will check which method your phone and TV support, set up the remote, and learn the limits of a phone remote before you retire the original.

Infrared or Wi-Fi: Which Method Fits Your Phone

Infrared works like a normal remote. The phone sends invisible light pulses to the TV receiver, and it works even without a network. You need a phone with an infrared blaster, a small dark window usually found on the top edge, and a TV with an infrared receiver, which is nearly every TV sold before the smart TV era.

Wi-Fi control works through the home network. The phone and the TV join the same Wi-Fi network, and the app sends commands over the network. This method works for smart TVs and streaming devices, and it does not need line of sight, so the phone works from another room.

Check your phone first. Look for a small dark lens on the top edge, search the phone model for infrared blaster, or open the built-in remote app if the maker included one. If the phone has no blaster, Wi-Fi is the answer, and the TV maker app will be your remote.

Set Up the Infrared Remote

Install a remote app that supports your TV brand. Many phone makers shipped their own remote app with infrared phones, and universal remote apps cover the major TV brands with code libraries. Open the app, choose your TV brand, and point the phone at the TV while the app tests power codes one by one until the TV responds.

Test every button after the TV turns on. Volume, channel, input, menu, and back buttons may each need a different code, and the app usually lets you test them one by one. If a button does nothing, try the next code in the list for your brand. Patience here pays off, because a fully mapped remote beats one that only turns the TV on and off.

Save the profile with a clear name. If the app supports multiple rooms or multiple TVs, label each profile by room, such as living room TV or bedroom TV. A phone remote with three unnamed profiles is a puzzle, while a labeled one is a tool the whole household can use without a manual.

Set Up the Wi-Fi Remote for a Smart TV

Connect the old phone to the same Wi-Fi network as the TV. Open the TV network settings and confirm the network name, then open the phone Wi-Fi settings and join the same network.

Install the TV maker app on the old phone. Samsung, LG, Sony, TCL, and most other makers offer a free remote app that finds the TV on the network and pairs with a code shown on screen.

Keep the old phone charged and on the network. A phone remote is useless if its battery is dead when you want to watch something. Leave the phone on a small charger near the sofa, turn off notifications and background apps you do not need, and the old phone becomes a dedicated remote that is always ready.

Streaming Devices, Soundbars, and Extra Gear

Streaming sticks and boxes have their own remote apps. A Fire TV, Roku, Apple TV, or Chromecast can each be controlled from a phone app on the same network, even when the TV itself is not smart. Install the app for your streaming device, pair it once, and the phone controls playback, menus, and voice search for that device.

Soundbars and receivers need infrared in most cases. If your old phone has a blaster, add the soundbar as a second device in the remote app and test volume and mute.

HDMI CEC can simplify the whole setup. When CEC is on, the TV remote controls a connected streaming device, and the streaming device remote controls the TV power and volume. Check the TV settings for CEC, which makers call Anynet, Bravia Sync, Simplink, or a similar name, and turn it on to reduce the number of remotes you need.

Limits of a Phone Remote and When to Buy a Real One

A phone remote cannot fully replace a physical remote for every TV. Infrared phone remotes need line of sight, so the phone must point at the TV. Wi-Fi remotes fail when the network is down.

Battery and attention are the practical limits. A phone that also runs messages and apps will distract you during a movie, and a dead phone means no remote at all.

Buy a universal remote if the phone setup keeps failing, if the TV is old with an unusual code set, or if the household wants a remote that anyone can pick up and use. A phone remote is a clever reuse of an old device, and it is free, but a real remote is the better tool when reliability matters more than cleverness.

More ideas, fewer dead ends: the related guides below continue this thread, beginning with Smartphone Overheating Explained: Causes, Cooling Down, and When to Worry.

Reference: TV remote control — Wikipedia

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