Using a smartphone as the primary storage of media files has become standard, however, built-in speakers of mobile devices often fail to convey the full depth of sound or provide enough volume for a large room.
Xiaomi TVs, based on the Android TV operating system or PatchWall proprietary shell, are a powerful multimedia center that can easily become a high-quality acoustic system.
The easiest and most wireless way to stream audio is Bluetooth technology, which does not require complicated router configuration or purchase of additional equipment.
In this guide, we’ll break down all the nuances of pairing, from the basic steps to the subtleties of setting up codecs to minimize delays and improve sound quality.
Preparation of equipment and compatibility check
Before starting the synchronization process, you need to make sure that both devices are in good condition and support the necessary data transfer protocols.
Modern Mi TV, Mi Box and Redmi TV models are equipped with a wireless communication module version 4.2 and higher, which provides a stable channel for high-resolution audio transmission.
It is important to check that the Bluetooth module is also activated on the smartphone and is visible to other devices, as the hidden mode can prevent detection.
- 📱 Make sure that your smartphone and TV are in the same room, no more than a distance away. 5-7 metre.
- 🔋 Check the battery level on both devices, as the energy-intensive sound transfer process can quickly discharge gadgets.
- 🔄 Update your TV software to the latest version via the Settings menu → On TV. → Updating the system.
It is worth noting that some older versions of MIUI for TV firmware may have limits on the number of peripherals connected at the same time.
If you plan to use the TV solely as external acoustics, make sure the screen is turned off or put into energy saving mode to avoid the die burnout.
⚠️ Note: When using Bluetooth to transmit audio to the TV, automatically switching audio to the phone speaker when an incoming call is made may not work correctly.
Step-by-step instructions for pairing devices
The process of pairing between a smartphone and a Xiaomi TV is standardized, but has its own characteristics depending on the version of the interface.
To start, you need to go to the main menu of the TV and find the section responsible for managing external accessories and network settings.
☑️ Connection algorithm
On the remote control, press the button with the image of the gear or select the "Settings" item in the upper menu.
In the window that opens, look for Devices and Accessories (or “Bluetooth” in older PatchWall versions) and go to the new device add-on subsection.
The TV will go into search mode, and a list of available gadgets will appear on the screen, which are in range.
In parallel, on your smartphone, open Bluetooth settings and start scanning available devices.
Your TV should appear on the list, usually referred to as MI TV or Android TV, followed by a set of characters.
After selecting the device on one of the screens will be a request to confirm the pairing with the digital code.
- 🔍 If the TV doesn’t appear on the list, try rebooting the Bluetooth module on your smartphone by turning it off and on.
- 📺 Make sure that the TV does not run a system update process or a heavy application that drains the CPU resources.
- 🔌 In rare cases, it helps to completely disconnect the TV from the network on the Internet. 10-15 seconds to reset the cache of communication modules.
After successfully entering the code or confirming the status of “Conjugated”, the system will automatically configure the A2DP profile to transmit stereo sound.
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If you encounter a “failed to hide” error when pairing, try removing previously saved phone profiles in your Bluetooth TV settings and start searching again.
Customization of sound output and playback control
Once successfully connected, the audio stream from the smartphone should be automatically redirected to the TV speakers, but sometimes manual activation is required.
In most cases, it is enough to run any media player or streaming service on your phone, and the sound will go through TV.
Volume control in this mode completely goes to the TV, so the sound adjustment buttons on the smartphone may be inactive or adjust only system notifications.
For a more subtle setup, you can use the engineering menu or third-party applications if standard equalizer settings are not enough.
In the TV Settings → Sound → Sound Mode, you can select the “Music” or “Standard” profile for cleaner frequency transmission.
| Parameter | Description | Recommendation |
|---|---|---|
| SBC codec | Basic codec, supported by all devices | Use by default for compatibility |
| AAC codec | Improved quality, less compression | Recommended for iOS and modern Android |
| Delay (Latency) | Time of signal travel from source to speakers | Critical for video content, less important for music |
| Bitrate | Bitrate audio stream | Set the maximum value in the player settings |
Some users note that when playing video via Bluetooth, the image and sound can be desynchronized.
This is due to the features of encoding the video stream and transmitting audio over a separate channel, which creates buffering.
For music tracks, this problem is irrelevant, since the continuity of the flow does not depend on the frames of the video.
Solving Common Connection Problems
Despite the simplicity of the technology, users may face a number of technical difficulties, such as intermittent sound or complete connection failure.
One common cause is signal interference, especially if there are many 2.4GHz devices running in the room, including Wi-Fi routers and microwave ovens.
- 📶 Try switching your Wi-Fi router to 5GHz to free up the air for a Bluetooth connection.
- 🔇 If the sound is interrupted, move closer to the TV to avoid physical obstacles.
- 🔄 Cleaning the list of conjugate devices on the phone often solves the problem of “hang” connection status.
It’s also worth checking the power saving settings on your smartphone, as aggressive battery optimization can “kill” the background audio transfer process.
You can find the Bluetooth Codec option on the Android developer menu and force you to choose AAC or aptX if the TV supports them, which can improve stability.
⚠️ Note: Using third-party applications to amplify the Bluetooth signal on root rights can lead to unstable system operation and loss of warranty.
If the problem is systemic, resetting network settings on the TV will help through the Settings menu → Device → Reset.
Remember that reset will delete all saved Wi-Fi passwords and data about connected gadgets.
Hidden Developer Settings for Audio
Alternative methods of broadcasting audio
If the sound quality via Bluetooth does not suit you or there is a high latency, it is worth considering other methods of connecting a smartphone to a Xiaomi TV.
The best option is to use Chromecast built-in technology, which is built into most modern Xiaomi TVs.
This method does not transmit the audio stream itself, but a link to the content that the TV downloads directly from the Internet, which frees up the smartphone and provides maximum quality.
For local files, you can use the DLNA protocol or media player applications such as VLC or Xiaomi Mi Video.
In this case, the phone acts as a control panel, and buffering occurs on the TV side through a local Wi-Fi network.
- 🌐 Wi-Fi Direct allows you to transfer files and media without connecting to a router, creating a direct network between devices.
- 🔌 Cable connection via adapter USB-C to HDMI Ensures no delays and maximum bitrate.
- 📡 Use of an external Bluetooth transmitter connected to an optical output (SPDIF) TV can produce better sound if the built-in module is weak.
The choice of method depends on your priorities: convenience and mobility (Bluetooth) vs. maximum quality and stability (Wi-Fi/Cable).
For background music at a party, Bluetooth is perfect, and for critical listening to songs, it is better to use wired solutions or Chromecast.
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Bluetooth is ideal for background music and podcasts, but for watching videos or critical listening, it’s best to use a Chromecast or cable connection due to bandwidth limitations.