How to connect Xiaomi soundbar to LG TV: all ways + typical errors

Connecting Xiaomi soundbar to a TV LG — A task that seems simple at first glance, but often raises questions among users, and even if both devices support modern interfaces, protocol inconsistencies, outdated software versions, or trivial errors in settings can turn the process into an excruciating search for a solution. Especially relevant problem for owners of budget models Xiaomi Mi Soundbar or Redmi Soundbar, where there is no HDMI-port and television LG The last generation actively refuse analog connectors.

In this article, we will analyze all possible ways of connecting - from the classical to the traditional. HDMI ARC We'll take you to alternatives like Bluetooth or optical cable, and we'll also look at the typical problems of why there's no sound, how to fix audio latency, and what to do if the TV doesn't see the soundbar. LG, where key parameters for the correct operation of external acoustics are often hidden.

1.Preparation: What to check before connecting

Before you connect the devices, make sure they are both ready to go, which will save you most of the problems during the setup phase.

• 🔌 Power: connect the Xiaomi soundbar to the socket and make sure it's on (the indicator should burn or blink). TV Soundbar) have a separate power button on the body.
• 📺 TV port: Check the back panel LG — There should be free connectors. HDMI ARC, Optical (TOSLINK) 3.5 mm AUX. On models LG OLED NanoCell ports can be hidden under the cover.
• 🔄 Software updates: check the relevance of the TV firmware. Outdated versions (especially on the Internet) LG webOS to 5.0 may not support modern audio codecs. Update via Settings → Support → Update of the PO.
• 🎵 Sound mode: on the menu LG Go to Settings. → Sound. → Output sound and select external speakers (or HDMI ARC, If you use this port).

If you connect a soundbar via Bluetooth, pre-reset the list of conjugated devices on both gadgets. On Xiaomi, this is done by holding the Bluetooth button (usually 5-7 seconds), on LG through Settings → Sound → Bluetooth devices → Delete everything.

⚠️ Attention: On TVs LG webOS 6.0+ function HDMI ARC It can be disabled by default. To activate it, go to Settings. → Sound. → Additional settings → HDMI ARC and turn on the option.

2. Method 1: Connect via HDMI ARC (recommended)

HDMI ARC (Audio Return Channel) is the most reliable and high-quality way to transmit sound, as it supports uncompressed audio streams (including Dolby Digital and DTS).

• 🔗 Compatible ports: on TV LG It must be a socket with a marking. HDMI ARC (usually a port HDMI 2), and on the soundbar Xiaomi – port HDMI IN (ARC).
• 🔄 Cable: Use High-Speed HDMI (Version 1.4 or higher: Cheap cables may not support ARC.
• 🔊 Settings: LG turn on HDMI ARC in the sound menu, and on the Xiaomi soundbar, select the mode HDMI (source-button).

Step-by-step:

1. Connect one end of the cable to the HDMI ARC port on your TV, the other to the HDMI IN (ARC) on the soundbar.
2. On the LG remote, click Settings → Sound → Sound Out and select HDMI ARC.
3. On the Xiaomi soundbar, press the Source button and switch to HDMI mode.
4. Check the sound by turning on any content. If it's not, reboot both devices.

⚠️ Attention: On TVs LG 2019–2020 release (SM9000, CX, BX) You may need to manually adjust audio formats. Go to Settings → Sound. → Additional settings → Digital audio format and select Auto or PCM.

Turn it on. HDMI ARC customized LG|Use high-speed HDMI-cable|Select a regime HDMI soundbar|Check the digital sound format|Reboot devices in the absence of sound-->

Method 2: Connection via optical cable (TOSLINK)

If your LG TV or Xiaomi soundbar doesn’t support HDMI ARC, optical cable (TOSLINK) is a better alternative: It transmits digital audio without loss, but does not support feedback (such as volume control from the LG remote).

What you need:

• 🔌 Optical cable: choose with connectors EIAJ/TOSLINK (standard square connector length up to 5 The meters do not affect the quality.
• 📺 Port on LG: Look for the Optical Out connector (usually near the HDMI on some models, on some models (LG UK6300) It can be closed with a plug.
• 🎵 Sound settings: on the menu LG select Output of sound → Optical and set the format PCM or Dolby Digital.

How to connect:

1. Connect the optical cable to the Optical Out ports on LG and Optical In on the Xiaomi soundbar.
2. On the LG remote, click Settings → Sound → Sound Out → Optical.
3. On the soundbar, click Source and select Optical mode.
4. If there is no sound, check if the port is closed with a plug (relevant for LG OLED C1 and later).

On Xiaomi Mi Soundbar soundbars, optical input may require manual activation: hold the Source button for 3 seconds until the OPT indicator lights up.

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If the audio is late after the connection, try changing the optical output format from Dolby Digital to PCM in LG settings. This will reduce latency, but limit multichannel sound.

4. Method 3: Connect via Bluetooth

Wireless connectivity is convenient, but has limitations: audio delay (up to 200 ms), the inability to transmit multichannel audio and dependence on connection stability.However, this is the only option for Xiaomi soundbars without wired interfaces (for example, Redmi Soundbar).

How to hide the devices:

1. On the Xiaomi soundbar, activate the pairing mode: hold the Bluetooth button (or Power + Volume + on some models) until the indicator flashes quickly.
2. On LG TV, go to Settings → Sound → Bluetooth Devices and select Add Device.
3. In the list, find the soundbar (usually displayed as Mi Soundbar or Xiaomi Audio) and confirm the connection.
4. Return to Settings → Sound → Sound output and select Bluetooth.

Typical problems and solutions:

• 🔊 The sound is interrupted: make sure there are no obstacles between the devices. Maximum distance is 10 meters.
• ⏱️ Sound delay: in settings LG Enable the Low Delay mode (Settings) → Sound → Bluetooth Audio Delay → Minimize).
• 🔄 Soundbar turns off: turn off power-saving mode on Xiaomi (if there is such an option in the instructions).

⚠️ Attention: On TVs LG WebOS 4.0 and below may not support codecs AAC Or aptX, which leads to poor sound quality, and in this case, use wired connectivity.

Method 4: Connecting via AUX (3.5 mm)

Analog 3.5mm (AUX) is the most versatile, but also the lowest quality, and is suitable for older LG models (until 2016) or Xiaomi soundbars without digital interfaces, with the main disadvantage being interference and limited bandwidth (maximum 20-20000 Hz).

What do you need?

• 🔌 Cable: standard 3.5 mm - 3.5 mm (stereo). For lengths of more than 3 meters, take a shielded cable.
• 📺 Port on LG: Look for the Audio Out or Headphone Out connector (on the back (LG 43LJ510V) It can be combined with Cinch (RCA).
• 🎵 Settings: on the menu LG select Output of sound → Audio Out (Fixed) to allow volume to be adjusted only on soundbar.

Instructions:

1. Connect the cable to the Audio Out port on LG and AUX In on the Xiaomi soundbar.
2. On the LG remote, go to Settings → Sound → Sound Out → Audio Out (Fixed).
3. On the soundbar, select the AUX (Source button) mode.
4. Adjust the volume on the soundbar - on the TV, the adjustment may not work.

If the sound is too quiet or jammed, check:

• 🔊 Cable quality (cheap wires often break at connectors).
• 🔄 Equalizer settings on the soundbar (turn off low frequency amplification).
• 📵 Signal level on the menu LG (Settings → Sound → Volume Mode → Off).

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Use AUX only as a temporary solution. For a permanent connection, choose HDMI ARC or optical cable, which provide better sound quality and no interference.

6. Method 5: Connect via USB (limited support)

Some Xiaomi soundbars (such as Mi Soundbar 3.1) support USB-C or Micro-USB connectivity, but only for power. USB audio transmission on LG TVs is not supported - this port is designed to play media files from a flash drive or software updates.

If your soundbar has a USB-A connector (for example, to play music from a flash drive), it can not be used to connect to LG. The only exception is the LG model with USB Audio Out (rarely found on business TVs), but even then you will need special drivers.

Alternative: If you need to USB For sound, use a Bluetooth adapter (such as Xiaomi Bluetooth Audio Receiver) that connects to the AUX-The soundbar enters and receives a signal through the air.

7. Solving typical problems

Even when you're connected properly, you can have problems, and we'll look at the most common ones.

Additional advice:

• 🔄 If after connecting the sound is only through the TV speakers, check if the mode is activated. TV Speakers in Settings LG.
• 🎛️ On Xiaomi soundbars with a remote control (for example, Mi Soundbar 3.1) you can manually adjust the equalizer to improve the sound: hold on EQ and choose mode (Movie, Music, News).
• 🔊 If the sound is too quiet, check the volume level at the output. LG: in Settings → Sound → Select the Adaptive Sound Control mode.

8. FAQ: Frequent questions