Many smart tech users mistakenly believe that Bluetooth on a TV is designed solely for wireless headphones or gamepads. Indeed, short-distance data technology is most often associated with audio peripherals. However, the Android TV ecosystem on which modern Xiaomi Mi TV and Redmi TV models are based offers much greater integration with mobile devices.
Before setting up, it is important to be clear about the protocol’s technical limitations. Live streaming of screen or video files via Bluetooth is not possible due to the low bandwidth of the channel compared to Wi-Fi or HDMI. However, using this interface to control, transmit audio or use a smartphone as a remote is a regular and useful feature. In this article, we will discuss all the available use cases and how to implement them.
It is worth noting that the operating system interface may vary slightly depending on the firmware version and the regional version of the device. Global ROM models with global firmware and China ROM versions differ in the settings menu. However, the basic principles of wireless modules remain the same for the entire product line of the Chinese manufacturer.
Technical features of the Bluetooth module in Xiaomi TVs
Modern TVs are equipped with communication modules that support Bluetooth 4.0 and higher standards, often with support for Low Energy (BLE).This ensures energy efficiency and stable connection to the periphery. The main task of the module in the context of interaction with a smartphone is to emulate input or audio output devices. Channel bandwidth is limited, so the transmission of heavy media content in real time is not provided by the protocol architecture.
It is important to distinguish between the modes of operation that a TV can support. Some models allow you to work in the source mode (A2DP Source), transmitting audio to external speakers, or in the receiver mode (A2DP Sink), receiving sound from a smartphone. Screen Mirroring via Bluetooth is technically impossible on any model of Xiaomi TV.
Connection stability depends on the version of the installed PatchWall operating system or pure Android TV. In older versions of the software, there may be problems with the visibility of the device in search mode. Therefore, before trying to pair, it is recommended to check for system updates in the corresponding menu section.
⚠️ Warning: Do not try to use third-party apps to “boost” the Bluetooth signal or transmit video through this channel.This will only drain the smartphone battery and will not work due to the physical limitations of the protocol.
The distance between devices should also be considered. For a confident connection without breaks, the distance between the smartphone and the TV should not exceed 8-10 meters in the open space. The presence of walls, microwave ovens and running routers can create interference in the 2.4 GHz range.
Preparation of devices for pairing
The first step to successfully connect is to properly prepare both devices, so you have to activate the wireless module on your TV and make it visible to external search, and without that, your smartphone won't be able to detect the TV in the list of available devices.
There are also certain actions to be done on the smartphone. Often users forget that some features require not just Bluetooth enabled, but also activated geolocation, since in modern versions of Android, device scanning is tied to location resolutions.
- 📱 Turn on Bluetooth on your smartphone in the notification curtain or through settings.
- 📺 On the TV remote, press the settings button (cogs) and go to the connection section.
- 🔍 Make sure that both devices have visibility enabled for other gadgets.
- 🔄 Restart both devices if they haven’t seen each other before.
After these preparatory steps are completed, you can proceed to the direct tuning process depending on the desired result, the most common scenarios being using the phone as a remote or connecting a wireless headset.
Using a smartphone as a remote control via Bluetooth
One of the most useful features is the ability to use the smartphone screen as an advanced remote control. Unlike an infrared port, Bluetooth allows you to transfer not only channel switching commands, but also text input, which is extremely convenient when searching for videos on YouTube or entering passwords to Wi-Fi.
To implement this feature, you need to install the official Mi Remote or Xiaomi TV Assistant app (for iOS) on your smartphone. Once you launch the application, it will automatically start searching for compatible devices on the local network and via Bluetooth. If the TV is in pairing mode, it will appear in the list.
☑️ Setting up the remote on a smartphone
The pairing process usually requires confirmation, and you'll have a digital code on your TV screen that you want to type into your smartphone, or you'll have to press the confirmation button on your virtual remote, and when you're successfully connected, it becomes a full-fledged touchpad that supports voice input through your smartphone's microphone.
The advantage of this method of control is the speed of typing. The virtual keyboard of the phone is much more convenient than navigating the cursor on the on-screen keyboard of the TV. In addition, the application often supports the function of streaming photos and videos from the phone gallery to the large screen using a combined communication channel.
⚠️ Note: If you pair the device with a "Device not found" error, make sure that the smartphone and TV are connected to the same Wi-Fi network. + Wi-Fi.
Connecting external acoustics and headphones
While the topic of this article is about connecting a phone, users often look for ways to connect a phone to broadcast audio from it to a TV, or vice versa. In the case of Xiaomi TV, the TV is more likely to transmit sound to wireless headphones. However, some models support audio reception mode.
If your goal is to bring audio from your phone to your home TV acoustics via Bluetooth, you’ll need to check the specifications of a particular TV model. Most TVs operate in Source mode, not Sink, for the A2DP audio stream. This means they send audio but don’t receive it from the phone directly through a standard Bluetooth Audio profile.
However, there are workarounds and specific scenarios:
- 🎧 Connect Bluetooth headphones to a TV for quiet viewing.
- 🔊 Using the phone as a karaoke microphone (via special apps).
- 📡 Broadcasting sound through emulator applications (requires installation) APK TV).
To connect the headphones, the process is simple: go to Settings → Remotes and Accessories → Add Accessory. The TV will go into search mode. Enable pairing mode on the headphones (usually with a long press of the power button) and select them from the list on the TV screen.
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If the latency of the Bluetooth headphones is too high, try turning off the audio enhancement or equalizer in the TV settings, which often reduces buffering and synchronizes audio with video.
Screen and multimedia broadcasting (Cast and Miracast)
Because direct image transmission via Bluetooth is not possible, Chromecast built-in or Miracast technologies are used to display images from a smartphone to a Xiaomi TV. These protocols use a Wi-Fi channel, but session management is often initiated through Bluetooth search or is located in the same settings menu.
For Android users, the most convenient way is to use the Translation or Smart View function. iPhone owners can use AirPlay if the TV model supports this technology (starting with certain versions of Xiaomi software this became available), the configuration process is as follows:
- Make sure your phone and TV are connected to the same Wi-Fi network.
- On your TV, run the Wireless Display app or go to the signal source selection menu and select Wireless Screen.
- On the smartphone in the notification curtain, find the button “Translation”, “Smart View” or “Screen Replay”.
- Select your TV from the list of devices found.
It is important to understand the difference between modes. Mirroring completely copies the phone's screen, including notifications and desktop. Cast mode (for example, via YouTube) sends only a link to the video to the TV, allowing the phone to perform other tasks or turn off the screen.
| Parameter | Bluetooth | Wi-Fi Direct / Chromecast | HDMI Cable |
|---|---|---|---|
| Transmission speed | Low (up to 3 Mbps) | High (up to 300+ Mbps) | Very high (up to 18 Gbps) |
| Video transmission | Impossible. | Possibly (HD/4K) | Possibly (4K HDR) |
| Delay (Latency) | Low for audio | Medium (depending on router) | Absent. |
| Range. | Up to 10 meters. | Up to 30 meters. | Up to 5 metres (cable) |
Why does the image slow down when broadcasting?
Troubleshooting and troubleshooting
Even if all instructions are followed, technical failures can occur, and the most common problem is that the device is not on the available list, and this can be caused by the cache of Google Play services or a system failure of the TV communication module.
Try cleaning the Android TV Core Services cache on your TV. Go to Settings → Apps → Show System Processes → Android TV Core Services → Clear the cache. After that, restart the TV completely, disconnecting it from the network for 1 minute.
If the problem is that you're constantly breaking your connection, check the driver version and update your firmware. Sometimes it helps to reset your network settings on your smartphone. You should also look at antivirus programs on your phone that can block your local connection.
⚠️ Note: When you reset your network settings on your smartphone, you will lose your saved passwords from your Wi-Fi networks.
In rare cases, a conflict of Bluetooth versions (such as a phone with version 5.2 and an old TV with 4.0) can cause instability, and in such a situation, using an external Bluetooth adapter connected via a USB port of the TV can solve the compatibility problem.
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The stability of the wireless connection is 80% dependent on the quality of the router and the absence of interference in the air, not on the power of the TV transmitter.