How to bring back sound on Xiaomi TV: from simple settings to complex repairs

The sound on Xiaomi Mi is missing TV or Redmi Smart TV? Don’t rush to bring your equipment to the service center – 80% of the time, you can solve the problem yourself in 5-15 minutes, and this article will help you understand why the TV stopped playing sound: from banal errors in settings to hardware malfunctions. We have collected all working methods, including hidden functions. MIUI TV, diagnostics HDMI-Ports and even ways to get around factory restrictions on some models.

It's important to understand that the reasons can be software (settings are lost, firmware is lost) and hardware (damaged speakers, oxidized contacts). We'll look at each case with step-by-step instructions, including unique techniques for 2020-2026 models with Amlogic and MediaTek processors. If you're not a technician, don't worry: all methods are described as simply as possible, with a photo interface and explanations.

1. Checking basic settings: why sound can be turned off software

The first thing you need to do is eliminate the human factor, and often the sound is lost because of random button pressing on the remote or a failure in the system settings.

• 🔊 Volume level: Press the Volume button + The screen should have a volume scale, and if it's not there, the problem is deeper.
• 🎵 No Sound Mode: double check if the Mute mode is activated (button with crossed-out speaker). On some Xiaomi remotes, it is combined with Volume -.
• 📺 Signal source: If you have an external source (console, game console) connected, the sound can be output through it. TV or HDMI (depending on the situation).
• 🔄 Resetting sound parameters: go to Settings → Sound. → Additionally. → Resetting the sound settings.

Pay special attention to the item "Output" in the settings menu. TV 4S/5X Redmi Smart TV X is the option of selecting the output device:

• 📻 Dynamics TV — The sound goes through the built-in speakers;
• 🎧 Bluetooth/SPDIF — The sound is redirected to headphones or sound system;
• 🖥️ HDMI ARC — sound is output through HDMI-port (relevant to soundbars).

⚠️ Attention: On Xiaomi TVs with Android TV 10+ There's a bug: once you've connected your Bluetooth headphones, the sound may not come back to the speakers even after you've turned off the device. TV customized.

2. Diagnostics of hardware problems: speakers, cables, ports

If the software settings are fine, but the sound is still gone, it's time to check the hardware.

1. Speaker check: Hold your ear to the back of the TV at a distance of 5–10 cm and turn on the test sound (for example, in Settings). → Sound. → Speaker test. If you hear a quiet crack or noise, speakers are working, the problem is in the amplifier or firmware.
2. Inspection of cables: if the sound is lost when connecting through HDMI, Try another cable (preferably with support) ARC model 2022+ Oxidized contacts are a common cause of malfunctions.
3. External device test: connect your headphones to the TV via a 3.5mm or Bluetooth connector, and if you have sound, the problem is with the built-in speakers or connecting them to the motherboard.

For Mi models TV Q1/Q2 redmi MAX 98" There's a problem with the detachment of the plume of the speakers, because of overheating or mechanical damage:

• The sound appears only after physical impact on the body (knocking, pressing).
• Crackling or distortion at high volume.
• One speaker works, the other doesn't.

⚠️ Note: If the Xiaomi TV is guaranteed, do not open the case yourself! TV P1 and newer installed seals on screws - their damage will cancel the warranty.

3. Settings reset and firmware update: when software is to blame

If hardware checks fail, the problem could lie in the software. - Xiaomi's Android-powered TVs TV subject to two types of failure:

1. Local errors – Fly audio settings after updating or installing applications.
2. System bugs – the sound disappears due to a firmware conflict with iron (relevant for models 2021-2022 on PatchWall).

Start with a soft reset:

1. Open Settings → Device → Reset and Recovery.
2. Select Reset Sound Settings (does not affect personal data).
3. Reboot the TV.

If this doesn’t help, do a full reset to factory settings:

Settings → Device → Reset and Recovery → Reset to factory settings

After resetting, don't restore settings from the backup - this could return the problem.

For Mi models TV 4A (2018-2019 and Mi TV 4S The problem with the sound driver after upgrading to Android TV 9. Decision:

• 🔧 Remove the firmware to the previous version via Recovery Mode.
• 🔄 Or upgrade to the latest stable version manually (instruction below).

4 Manual firmware update: if the automatic update does not work

If the sound is gone after the upgrade or if the Xiaomi TV is getting stuck while playing the sound, manual firmware installation will help.

• 🎬 Stuttering sound on Netflix or YouTube;
• 🔊 Lack of sound in HDMI ARC;
• 📵 Loss of sound after exiting sleep mode.

Instructions for Android models TV 9/10/11:

1. Download the latest firmware for your model from the official Xiaomi website TV Updates (select the version marked Stable).
2. Unpack. ZIP-archive and copy the file update.zip flash drive (format) FAT32).
3. Put the flash drive in. USB-television-port.
4. Go to Settings → About TV → System Update → Update via USB.
5. Select a file and wait until the installation is complete (don’t turn off the TV!).

For Mi models TV Q1/Q2 redmi MAX 86" MediaTek-based MT9611 There is a caveat: if after updating the sound became quiet or distorted, additional adjustment is required:

Settings → Sound → Advanced Settings → Sound Format → Select PCM (instead of Auto)

⚠️ Note: On Xiaomi 2023 TVs (e.g. Mi) TV Q2 QLED) After manual update, you may reset your Dolby Audio license. To return it, go to Settings. → Annexes → Established → Dolby Audio → Clear the data and restart the device.

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Before updating the firmware, turn off all external devices (configures, soundbars) and select the Internal Speakers mode in the sound settings. This will prevent driver conflicts.

5. Problems with HDMI ARC and external devices

If you connect a Xiaomi TV to a soundbar or receiver through HDMI ARC (Audio Return Channel: The sound may be lost due to the:

• 🔌 Version incompatibility HDMI (For example, the soundbar supports ARC, And the TV is just an eARC);
• 🔄 Incorrect settings CEC (function of managing multiple devices HDMI);
• 📶 Interference from other wireless devices (Wi-Fi, Bluetooth).

How to set up HDMI ARC Xiaomi TV:

1. Connect the soundbar to the port HDMI ARC (It's usually signed on the back).
2. Turn on the function. ARC soundbar.
3. On the TV, go to Settings → Sound → Sound Out → HDMI ARC.
4. Activate the Control option HDMI CEC (Some models are called MI AnySee).
5. Reboot both devices.

For Mi models TV P1 Redmi Smart TV X55 portable HDMI 2.1 may require additional adjustments:

Settings → Display and Sound → Advanced HDMI settings → Sound format → Dolby Digital Plus

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If the soundbar doesn't give out sound through HDMI ARC, Try to connect it to an optical cable (SPDIF) — It's bypassing protocol limitations. HDMI.

6.Speaker and amplifier repair: when nothing helps

If all previous methods have failed, the problem is likely to be with the hardware.

• 🔊 Speakers - the coil burns out or the diffuser peels off (characteristic sign: there is a sound, but with wheezing).
• 🔧 Sound amplifier – the chip overheats or moves away from the board (sound disappears after 10–30 minutes of operation).
• 🔌 Trains and connectors – oxidized or damaged during transportation.

For self-repair, you will need:

• 🛠️ Torx screwdriver T5/T8 (hull-breaker);
• 🔥 Solding iron (power 30-40 W) and solder;
• 🧴 Alcohol for cleaning contacts;
• 🔍 loope USB-microscope (for inspection of fees).

Step-by-step instructions for replacing speakers (on the example of Mi) TV 4S 55"):

1. Turn off the TV and remove the back cover (carefully – it is mounted on the latches!).
2. Disconnect the speaker plumes from the motherboard (take a picture of the location!).
3. Unscrew the speakers (usually 4 screws per one).
4. Install new speakers (suitable models: 8Ω 10W for most of Xiaomi TV).
5. Collect the TV in reverse order and test the sound.

If the problem is in the amplifier, it can:

• 🔄 Refreshing (if contact is broken);
• 🧊 Refrigerate (apply a new heat paste to the radiator);
• 🔧 Replace the chip (this requires soldering skills) SMD-component).

⚠️ Attention: In Xiaomi Mi models TV QLED It's integrated into the main board, and it requires a complete soldering of the chip, which is almost impossible at home, and it's cheaper to use the service.

7. Alternative methods of output of sound: if the speakers do not work

If you can't restore the built-in speakers, you can use external devices to output sound. Here are all the options available for Xiaomi. TV:

• 🎧 Bluetooth headphones or speakers: Turn on Bluetooth in your TV settings. Select Add device and connect headphones. In your audio settings, select Exit via Bluetooth.
• 🔊 Soundbar via optical cable (SPDIF): Connect the optical cable to the port SPDIF on the TV. In the audio settings, select Digital output (optical).
• 🖥️ HDMI-splitter ARC: Use a splitter to connect the console and soundbar to one HDMI-- In the port. HDMI CEC in the settings of both devices.

Transmitting sound to a smartphone

Android TV 11+

1. Install the Google Home app.
2. Connect your TV and smartphone to the same Wi-Fi network.
3. In the application, select the option to Transmit sound to the phone.

For Mi models TV P1 Mi Sound Sync is available, which allows you to synchronize the sound with Xiaomi speakers (for example, Mi Smart Speaker) over Wi-Fi with a latency of less than 100 ms.

FAQ: Frequent questions about the sound on Xiaomi TV