Xiaomi Mi TV 4S has become a popular choice among users due to the combination of affordable prices, high-quality screen and wide-ranging Smart TV capabilities. However, many owners face difficulties when trying to connect wireless headphones to them via Bluetooth. Unlike smartphones, where the pairing process is intuitive, TVs often require additional manipulation with settings.
In this article, we will not only discuss the standard way of connecting, but also alternative methods for cases where the Mi TV 4S does not see the headphones or refuses to work with them. We will focus on the typical errors that arise due to firmware features or hardware limitations of the model. If you have already tried to connect and received a message "Device not found" or "Pairing error" - here you will find solutions.
It is important to consider that Xiaomi Mi TV 4S TVs based on Android TV 9.0 and older only support Bluetooth A2DP (for sound) and AVRCP (for control), but do not support Hands-Free Profile (HFP) for microphones. This means that you will be able to listen to sound, but you will not be able to use headphones as a headset for calls over the TV.
1. Check the compatibility of headphones with Xiaomi Mi TV 4S
Before you start connecting, make sure your headphones are compatible with your TV. Xiaomi Mi TV 4S works with most devices that support A2DP (streaming sound) and AVRCP (playback control) profiles.
- 🎧 Supported Codes: Television supports SBC (basic), AAC (Apple devices and aptX (on some firmware) if the headphones are used LDAC or HD, The sound can be transmitted with reduced quality.
- 🔋 Bluetooth Version: Mi TV 4S Equipped with a Bluetooth 4.2 module. Headphones with Bluetooth 5.0 and higher will work, but without the advantages of the new version (for example, increased range).
- 🎛️ Connection profiles: The TV does not support HFP/HSP (for microphones), so headsets with the call function will only be connected to play the sound.
If your headphones are in the category of True Wireless (TWS), for example, Xiaomi AirDots or Sony WF-1000XM4, make sure that they are in pairing mode before connecting (usually you need to hold the power button 5-10 seconds until the indicator flashes).
⚠️ Note: Headphones with Bluetooth Low Energy support (BLE), Some of these devices, such as some fitness trackers or smartwatches, may not appear on the list of available devices on the TV. TV.
2. Step-by-step instruction: connect via the settings menu
The standard way to connect headphones to Xiaomi Mi TV 4S is through the settings menu.
- Turn on the headphones and put them in pairing mode (usually hold the power button until the blue/red indicator flashes).
- On the TV remote, press the Settings button (cogs) or select Settings → All settings.
- Go to Devices and Accessories → Bluetooth.
- Activate the Bluetooth switch (if it is turned off).
- From the list of available devices, select the name of your headphones. If you don't have them, click Update.
- After the headphones appear in the list, click on them and confirm the pairing (it may be necessary to enter). PIN-code, usually 0000 or 1234).
- Wait for the “Connected” message and check the sound by turning on any content.
If the headphones are connected, but the sound is coming through the TV speakers, go back to Settings → Sound → Sound Output and select your headphones as the output device.
Make sure the headphones are charged
Enable the pairing mode on the headphones
Check that Bluetooth is activated on TV
Update the list of devices in the settings
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⚠️ Note: Some of the Mi's firmware TV 4S When you connect your headphones, the sound automatically switches to them for system notifications only, not for apps like YouTube or Netflix, and you have to manually select the output device in each app.
3. Alternative ways of connecting
If the standard method didn't work, try alternatives, which are especially useful for older firmware or headphones with custom protocols.
Method 1: Connecting via USB Bluetooth adapter
Some users are faced with the fact that the built-in Bluetooth module of the TV is unstable, in which case the external adapter will help:
- 🔌 Buy it. USB Bluetooth adapter with support A2DP (For example, TP-Link UB400 Asus USB-BT400).
- Connect the adapter to the free USB 2.0 port on your TV.
- Restart the TV (turn off power for 30 seconds).
- Repeat the pairing process through the Settings menu → Devices and accessories.
Method 2: Use of Bluetooth-3.5 mm adapter
If your Mi TV 4S has a 3.5mm output (some models don’t have it), you can use a Bluetooth transmitter:
- 🎵 Connect the transmission (for example, 1Mii B06 Plus) to the TV audio socket.
- Turn on the transmitter and put it in pairing mode.
- Connect the headphones to the transmitter as a normal Bluetooth device.
This method guarantees minimal sound latency (important for watching movies) and is compatible even with headphones that the TV can’t see directly.
Through the TV settings menu
USB Bluetooth adapter
Bluetooth 3.5 mm transmitter
Never plugged in.
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Method 3: Connecting through the application
On Android TV, you can use third-party Bluetooth management apps, such as Bluetooth Auto Connect:
- Install the app from Google Play on your TV.
- Open it and follow the instructions for finding the devices.
- Select headphones and confirm the pairing.
This helps in cases where the Bluetooth system menu does not see the device due to software limitations.
4. Solving common problems
Even after a successful connection, Xiaomi Mi TV 4S users often face typical problems.
| Problem. | Possible cause | Decision |
|---|---|---|
| TV doesn't see headphones | Headphones are not in pairing mode or incompatible | Put your headphones in search mode (hold the power button 5-10 seconds). Check the compatibility of the codecs. |
| The sound is delayed. | SBC codec with high latency is used | Switch to AAC or aptX in Bluetooth settings (if supported). or use a Bluetooth transmitter. |
| Connection is cut off | Weak signal or interference from other devices | Reduce the distance between the TV and the headphones. Turn off other Bluetooth devices nearby. |
| Poor sound quality | The TV uses a compressed audio stream | In the audio settings, select High Quality (if available) or use an external DAC. |
If the headphones are plugged in but the sound continues to go through the TV's speakers, check:
- 🔊 Settings menu → Sound. → Sound output selected headphones.
- 🔄 In some apps (such as Netflix), you need to manually select an audio device in their own settings.
- 🔄 Restart the TV (turn off power for 1 minute).
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If the headphones are plugged in but the sound is interrupted, try turning off the Absolute Volume feature in the Bluetooth settings (if any), which will solve the problem with unstable connection on some models.
5. Update firmware to improve compatibility
Many Bluetooth issues on the Xiaomi Mi TV 4S are solved by a firmware update, the manufacturer regularly releases patches that improve compatibility with wireless devices, to update the TV:
- Go to Settings → About TV → System Update.
- Click Check for updates.
- If a new version is available, download and install it (the TV will reboot automatically).
After the update:
- 🔄 Reconnect the headphones (remove them from the list of devices and add again).
- 🔊 Check the sound in different apps (YouTube, Netflix, local files).
If the automatic update does not work, you can install the firmware manually:
- Download the latest firmware version for your model from the official Xiaomi website (support section).
- Copy the.zip file to a flash drive formatted in FAT32.
- Connect the flash drive to the TV and go to Settings → About TV → Local Update.
- Select the firmware file and confirm the installation.
What to do if the update is suspended?
6.Sound optimization for wireless headphones
Once you've successfully connected, you have to adjust the sound to make it better. → Sound on Mi TV 4S The following options are available:
- 🎚️ Equalizer: Select pre-setting (like Movie or Music) or adjust frequencies manually.
- 🔊 Balance: Adjust the volume of the left/right earphone (helpful if one sounds quieter).
- 🎧 Sound effects: Disable all post-processing (such as Dolby Audio or Surround) as these can degrade quality when transmitted over Bluetooth.
- 📶 Sound delay: Some firmware has the option of Synchronizing sound – select a value (from the -200 before +200 ms) to match the sound with the image.
For movie lovers, it is recommended to use headphones with support for aptX Low Latency (if the TV supports this codec), this minimizes the latency of sound to 30-40 ms, which is critical for watching movies, you can find out what codec is used in the Bluetooth settings (in some firmwares, it is displayed next to the device name).
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For minimal audio delay, use a Bluetooth transmitter with support for aptX LL or AAC. The built-in Mi TV 4S module often gives a delay of 100-150 ms, which is noticeable when watching video.
7. Reset Bluetooth settings on the TV
If none of these methods worked, try resetting your Bluetooth settings, which will delete all the stored devices and return the settings to factory settings:
- Go to Settings → Devices and accessories → Bluetooth.
- Press three points (⋮) in the upper right corner and select Reset settings.
- Confirm the action and restart the TV.
- Repeat the process of connecting the headphones again.
After resetting, the TV may require re-entering. PIN-If the problem persists, check the headphones on another device (smartphone or laptop) to rule out any malfunction.
⚠️ Note: Some of the Mi's firmware TV 4S Resetting Bluetooth settings also resets the Wi-Fi network settings. Write down your network password in advance so you don't lose your connection.