Modern smart home users often seek to combine their gadgets into a single ecosystem for maximum convenience.One popular request is the ability to synchronize your smartphone with a Xiaomi Mi TV. TV or Redmi TV Many device owners mistakenly believe that this protocol allows you to broadcast an image or video directly, like this. HDMI-cable, but reality makes its own adjustments to the technical capabilities.
In fact, Bluetooth in Xiaomi and Android TVs is primarily designed to connect peripherals: headphones, game controllers, keyboards and mice. Direct transmission of multimedia content (pictures or video files) through this communication channel is not supported at the system level due to the bandwidth limitations of the protocol. However, there are workarounds and specific use cases, which we will discuss in detail below.
In this article, we will look at how smartphone and TV interactions work over Bluetooth, what limitations this technology imposes, and what better alternatives to use to broadcast the screen, learn how to turn your phone into a remote control, or connect wireless headphones to your TV, using your smartphone as an intermediate, if necessary.
Bluetooth technical limitations in Xiaomi TVs
Before you start setting up, you need to clearly understand the architecture of wireless connections in the Android TV operating system, which runs Xiaomi TVs. Bluetooth protocol, even in the latest versions of 5.0 and higher, has a limited data rate, which averages from 1 to 3 Mbit / s. This is categorically not enough to transmit video stream even in low resolution, not to mention 4K HDR content.
The main Bluetooth feature in Xiaomi Mi TV Stick and built-in Smart TVs is HID (Human Interface Device) and A2DP (Audio), which means that the system is sharpened to the signals from the remote buttons or transmit sound to headphones. Trying to find the "Screen Mirroring over Bluetooth" feature in the settings is doomed to failure, since such a module simply does not exist in the software.
⚠️ Note: There is no standard way to stream video from your phone to your Xiaomi TV exclusively via a Bluetooth connection. Any apps in the Play Market that promise to do so either use Bluetooth for the initial handshake, switching to Wi-Fi, or are fraudulent.
However, Bluetooth remains an important tool for expanding functionality, for example, you can connect a Bluetooth keyboard to your TV from your smartphone if the main remote is lost, although this requires you to have a Bluetooth keyboard. USB-You can also transfer small files via Bluetooth, but this process is extremely slow and inconvenient for modern volumes of data.
Why Xiaomi doesn’t add Bluetooth video transfer?
Preparation of equipment for synchronization
To successfully interact with your devices, you need to do some pre-training: make sure your smartphone (be it Xiaomi Mi, Redmi or Poco) and TV work correctly. While direct video synchronization via Bluetooth is not possible, many remote functions and audio transmission require activation of the appropriate modules.
Check the operating system versions. On a TV, it's usually Android TV 9.0 or higher, or the PatchWall branded shell. On a smartphone, the current version of MIUI or HyperOS is recommended. Outdated software can contain bugs that prevent even basic device detection within range.
☑️ Checking connection readiness
It is also important to consider the distance between devices. For a stable Bluetooth connection, the range should not exceed 10 meters without obstacles. Walls, microwave ovens and running routers can create interference, especially in the 2.4 GHz band, which is often used by Bluetooth.
Using a Smartphone as a Bluetooth Remote
One of the most practical ways to “synchronize” is to use the phone as an advanced remote control. While Wi-Fi is often required for initial setup, some features can work over Bluetooth Low Energy (BLE) if the TV and phone have previously been paired or are in the same Google Home ecosystem.
To implement this scenario, you will need a Google Home app or a dedicated Android TV Remote Control app. In some cases, if the TV supports the “Bluetooth Keyboard” feature, the phone can be defined as an input device, which allows you to control the cursor or type text from the smartphone keyboard on the TV screen, which is especially convenient when searching for videos.
The connection process usually looks like this:
- 📱 Open Bluetooth settings on your smartphone and click "Device Search".
- 📺 On the TV, go to Settings. → Remote and accessories → Add an accessory.
- 🔗 Select your phone name from the list on your TV screen and confirm the pairing with the code.
- 🎮 Launch the remote app and follow the instructions on the screen.
It is worth noting that a full replacement of the IR remote is possible only if your smartphone has an IR port (IR Blaster module), which is available in many Xiaomi and Redmi models. In this case, Bluetooth is not necessary at all - the phone emulates the signal of a conventional remote.
Transfer audio via Bluetooth adapter
Another scenario where Bluetooth plays a key role is audio transmission, where you can use your smartphone as a sound source by streaming it to Bluetooth headphones connected to your TV, or you can output the sound from TV to your phone (although the latter is more complex and requires third-party software).
Most people want to connect wireless headphones to a Xiaomi TV using the phone as an intermediary, but it is technically smarter to connect the headphones directly to the TV. However, if you want to stream music from your phone to your home speaker system connected to the TV, Bluetooth is a great solution. The sound quality in the SBC or AAC codec will be quite acceptable for background listening.
To adjust the audio output, perform the following steps:
- 🎧 Translate Bluetooth headphones or column into pairing mode.
- 📺 On Xiaomi TV, go to Settings section → Remote and accessories.
- 🔍 Click "Add Accessory" and wait for your device to appear.
- 🔊 After connecting, the sound will automatically switch to an external device.
⚠️ Attention: When you connect Bluetooth headphones to your TV, you may experience a desynchronization of sound and image (latency) that is normal for Bluetooth technology. It is recommended to use a wired connection or low latency technologies such as aptX Low Latency if supported by both devices.
Alternative synchronization methods: Wi-Fi and Chromecast
Because Bluetooth is not suitable for video transfer, the main method of syncing Xiaomi phone and TV is Wi-Fi. Google Cast (Chromecast built-in) and Mi Home technology allow you to instantly stream content from the smartphone screen to a large display with minimal latency.
To use this feature, both devices must be on the same Wi-Fi network. This provides the necessary bandwidth to transmit a video stream in high resolution. Unlike Bluetooth, Wi-Fi allows you not only to duplicate the screen, but also to run content directly from aggregator applications such as YouTube or Netflix, using the phone only as a remote.
A comparison of the capabilities of the various connection methods is presented in the table below:
| Connection method | Video transmission | Audio transmission | Management | Delay. |
|---|---|---|---|---|
| Bluetooth | No. | Yeah (TV → Headphones) | Partially. | Low. |
| Wi-Fi (Cast) | Yes (HD/4K) | Yes. | Complete. | Minimum |
| Wi-Fi Direct | Yeah (Mirroring) | Yes. | Complete. | Medium |
| IR port | No. | No. | Complete (emulation) | Absent. |
To run a Wi-Fi broadcast, open an app like YouTube, click on the Cast icon (a rectangle with waves) and select your Xiaomi TV. The phone screen can go out or be used for other tasks while the video is on the TV. This is a major advantage over simply duplicating the screen.
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If the TV doesn’t see the phone when trying to stream, check that both devices have access to the local network. Sometimes antivirus or router settings can block the detection of devices inside the home network (AP Isolation).
Solving Connection Problems
Users can face a variety of difficulties in setting up. Often the problem is not hardware malfunctions, but software conflicts or misconfigurations. If Xiaomi TV can't see the phone or refuses to connect, try rebooting both devices, a trivial but effective way to reset temporary cache errors of Bluetooth and Wi-Fi services.
Another common problem is a crowded list of paired devices. Xiaomi TVs can remember a limited number of accessories. If the list is full, new devices may not connect. Go to Bluetooth settings on TV, find old or unnecessary devices, and select Forget or Delete.
If you use third-party applications to manage, make sure they are given all the necessary permissions. In Android, Bluetooth scanning often requires location permission (GPS) to work, as this is considered part of the system's security protocol. Without GPS enabled, device search may not start.
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90% of connection problems are solved by restarting the router and TV, and checking that both devices are on the same Wi-Fi subnet.
Also worth paying attention to is energy saving: If the phone is on a hard power saving mode, it can limit the background activity of the Bluetooth module, causing the connection to constantly break. Add the TV control app to the battery exceptions.