If your Xiaomi TV suddenly stops playing sound, that's not a reason to panic. The problem can be both trivial settings and hardware malfunctions. 70% of the time, users decide on their own without going to the service center - just know where to look for the cause.
We have collected all possible methods of sound recovery, from simple to complex, taking into account the features of the MIUI TV firmware and the Xiaomi hardware platform. This article is relevant for the Mi TV 4/4A/4C/4S/5/5 Pro, Redmi Smart TV, as well as newer lines with Android TV or Google TV. If the sound is lost after updating, connecting external devices or for no apparent reason, here you will find a solution.
1. Checking basic sound settings
Start with the obvious: it's possible that the sound is just turned off or muted. On Xiaomi remotes, the volume button is often combined with the on button, so random pressing can drop the level to zero.
- 🔊 Volume level: press Volume + The screen should show a scale with the current value.
- 🎵 Sound mode: in the menu Settings → Select the Standard or Cinema profile (Night or Voice profiles can lower the overall volume).
- 🔇 No Sound function: double check if it is activated (the speaker icon with a crossed circle on the control panel).
If you don't have the sound after this manipulation, move on to the next step, and note that some models (such as the Mi TV Q1) have a separate Mute button on the sidebar of the case, which is also worth checking.
2. Diagnostics of connected devices
A common cause of loss of sound is conflict with external gadgets. Xiaomi TVs automatically switch audio output when connected via HDMI ARC, Bluetooth or optical cable.
- Disconnect all cables from HDMI-port, including soundbars, receivers and game consoles.Reboot the TV (Power button for 10 seconds).
- If you have a sound, connect the devices one by one, checking the audio after each. On models with HDMI ARC (for example, Mi TV P1), the sound can "go" to the soundbar even if it is turned off - turn off the ARC function in the Settings → HDMI CEC menu.
- For Bluetooth speakers, go to Settings → Devices → Bluetooth and remove all paired gadgets. Sometimes the TV sticks on a non-existent connection.
⚠️ Attention: If you are using AV-receiver or sound panel through HDMI, Make sure that they have the right input source, and some receivers (such as Yamaha) need to manually activate the mode. HDMI Control.
| The device | Potential problem | Decision |
|---|---|---|
| Soundbar (HDMI ARC) | The TV sends sound to the device turned off | Disable ARC in HDMI settings or turn on soundbar |
| Bluetooth headphones | Automatic connection to an inactive gadget | Remove the device from the paired list |
| Game console (PS5/Xbox) | The conflict of audio formats (Dolby vs PCM) | In the settings of the consoles, select Linear PCM |
| Cable/satellite TV | The operator broadcasts without a soundtrack | Switch the audio channel on the console |
3. Resetting sound settings to factory
If there is sound, but it is quiet, distorted or disappears periodically, resetting the audio parameters will help, this procedure does not affect other settings of the TV (Wi-Fi, applications, etc.).
Open the Settings → Sound
Select Additional Settings (or Equator)
Press Reset the sound settings
Confirm the action and restart the TV-->
After discharge:
- 🔄 Check the channel balance (in some models, the left/right column can be disabled separately).
- 🎛️ Disable all sound effects (virtualization, 3D-audio – they may conflict with the content.
- 📶 If you use an external antenna, check the audio settings in the broadcast menu (sometimes operators change the broadcast format).
On Android TV 10+ (e.g., Xiaomi TV A2 2023) after reset, you may need to reset Dolby Audio. Go to Settings → Display and Sound → Audio Drive and select Auto (recommended).
4. Firmware update and system reset
Sound problems often occur after automatic updates or because of bugs in the current version of the software. Xiaomi regularly releases patches for audio drivers, so first of all check the relevance of the firmware:
- Go to Settings → About TV → System Update.
- If you have an update, install it. Importantly, connect your TV to the network via cable (not Wi-Fi) to avoid a download break.
- After the update, perform a soft reset: press the Power button on the remote for 15 seconds.
If the sound is gone after the update, try rolling back to the previous version (if available) or making a full reset:
Settings → About TV → Resetting settings → Full reset
(Default password: 1234 or 0000)⚠️ Warning: Full reset will remove all installed apps, accounts and personal settings. Pre-record the login details to Mi Account, Netflix, YouTube and other services. TV (for example, Xiaomi TV Q2) After reset, you will need to re-authorize in Google Play.
What to do if the TV is not updated?
5. Verification of hardware components
If the software methods didn't work, the problem could be the speakers, the audio chip, or the motherboard.
- 🔧 Speaker test: Connect external speakers or headphones to the TV via 3.5mm or Bluetooth. If there is sound, the built-in speakers are faulty.
- 🔌 Checking connectors: Look at HDMI-The ports are for damage. TV 4S frequent out-of-contact HDMI ARC, blocker.
- 🛠️ Visual inspection: When the TV is off, flash a flashlight on the speakers (usually located behind or below.
For models with a separate audio chip (for example, Xiaomi Mi TV 5 Pro) is characterized by the problem of “clicking” in the speakers before the sound disappears completely, this indicates a malfunction of the chip Realtek ALC or capacitors on the board, in which case you will need soldering or replacement components.
💡
If the TV is guaranteed, do not open the case yourself - this will cancel the warranty obligations. Contact the service center with a check and packaging. For models older than 2 years, the repair of speakers costs 1.5-3 thousand rubles (depending on the diagonal).
| Symptoms. | Probable cause | Decision |
|---|---|---|
| The sound is only in the headphones. | Failure of the built-in speakers | Replacement of speakers or audio chip |
| Clicks/clicks before the sound goes away | Problems with capacitors on the board | Diagnostics and soldering in the service |
| The sound disappears at high volume. | Overheating or short circuit in the amplifier | Cleaning from dust or replacing the amplifier |
| No sound in specific applications only | Codec conflict (e.g. Dolby Digital) | Resetting the settings of the application or firmware |
6. Alternative methods of sound output
If you can not restore the built-in sound, use workaround solutions:
- 📻 Bluetooth Audio: Connect the sound bar or headphones through Settings → Devices → Bluetooth. Sound delay (lip-sync) is adjusted in Settings → Sound. → Synchronization of sound.
- 🎧 3.5mm output: Most Xiaomi models have a headphone jack on the sidebar. plug in active speakers or amplifier.
- 🔄 HDMI ARC/eARC: If you have AV-Receiver, connect it to the port HDMI ARC (In the settings of the TV, activate Digital Audio Output (ARC).
- 💻 Optical (TOSLINK): For models with optical output (e.g. Mi) TV Q1E) can be used externally DAC.
For owners of Xiaomi TV Stick or Android TV consoles: if the sound is lost only in them, try:
Settings → Display and sound → Audio output → PCM (instead of Auto)Important: When using external devices, turn off the built-in speakers in the settings to avoid echoes. On some models, this is done through Settings → Sound → Output device.
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If the TV is warranty, try all software methods first (sections 1-4). Hardware repair (section 5) will void the warranty unless a factory malfunction is confirmed.
7. When to contact the service center
Self-repair is justified only in case of obvious problems (for example, departed cable speaker).
- 🔥 The TV emits a burning smell or warms up in the area of the audio chip.
- ⚡ After a thunderstorm or a surge of tension, not only the sound, but also the image disappeared.
- 🛠️ On the motherboard, swollen capacitors or traces of oxidation are visible.
- 🔊 The sound appears only after physical impact (knocking on the body).
Cost of repair in official Xiaomi services (2026):
- Replacement of speakers: 1,200–2,500 ₽ (model-wise).
- Audio chip repair/replacement: 2,000–4,500 ₽.
- Diagnosis (if no fault is confirmed): 500–1000 ₽.
For TVs over 5 years old, repairs can be unprofitable - compare the cost to the price of a new model. TV A55 (2026 is worth about 25,000 ₽, a major repair of the motherboard costs 8000-12,000 ₽.