You've turned on your favorite TV series or movie, but instead of dialogue, silence? The sound on Xiaomi TV can disappear for dozens of reasons, from the banal disconnection of speakers in settings to a serious breakdown of the audio track. In this article, we will analyze all possible scenarios, from simple to complex, and also give step-by-step instructions for diagnosing and fixing the problem.
Feature of Xiaomi TVs (series Mi) TV 4/4A/4S/5/5X/Q1/Q2/A Pro, etc. in that they work on Android TV This means that the sound problems can be associated with both hardware (dynamics, audio chip) and software failures (firmware, applications, settings). We won’t be limited to standard tips like “check cables” – here you will find unique solutions for specific Xiaomi models, including hidden service mode menus and commands. ADB.
Important: If the sound is gone after updating the firmware or installing a new application, try the solutions in the software crash section first. If the problem occurs after a physical impact (fall, liquid hit), immediately go to hardware diagnostics.
Top.-5 The most common causes of sound loss
According to statistics of service centers, in 70% of cases, the sound on Xiaomi TV It disappears due to one of five reasons:
- 🔇 Disabled speakers in settings – users accidentally press the Mute button on the remote or turn off the sound in the menu.
- 🔌 Problems with HDMI-cable or port – especially important when connecting to consoles, sound panels or receivers.
- 📱 Failure in firmware or application - after updating MIUI TV or third-party installations APK (For example, YouTube or Netflix).
- 🔊 Hardware failure of the audio track - burnout of the amplifier, break of contacts of speakers or failure of the audio chip.
- 🎛️ Downed audio output settings – the TV can “think” it is connected to external acoustics (e.g. via a computer or a computer). ARC/eARC or).
Before you bring the TV to the service, go through this checklist:
Check if the Mute is pressed on the remote (the indicator may not burn)
Make sure the volume is not at zero (Volume buttons) +/-)
Turn off all external devices (configures, sound panels, headphones)
Restart the TV (press the power button for 10 seconds)
Try to reproduce sound from different sources (TV, HDMI, USB, Bluetooth)-->
If after these actions the sound did not appear, read on - we will analyze in detail each possible cause.
Software failures: from updates to viruses
Xiaomi TVs on Android TV We are vulnerable to software errors, especially after automatic updates:
1. Failure after firmware update
If the sound is lost immediately after the update MIUI TV, problem:
- 🐞 Error in the new firmware version - for example, in Mi TV 4A post-update MIUI TV 3.0.17 Massively Disappeared Sound on Netflix.
- 🔄 Incomplete update installation – the TV could “hang” during the process, which resulted in damage to system files.
- 📦 User Settings Conflict – Some audio profiles (e.g. Dolby Audio or Dolby Audio) DTS) may be dropped.
Decisions:
- Reset the sound settings to factory: go to Settings → Sound. → Resetting the sound settings.
- Remove the firmware (if available): in Settings → On TV. → Updating the system → Recoil.
- Install the firmware manually through USB (guideline).
How to install firmware manually on Xiaomi TV
⚠️ Note: If the TV does not turn on or hangs on the logo after manual updating, this may indicate that the firmware is incompatible with your model).
Annex conflict
Some applications (especially pirated versions of Kodi, SmartTubeNext or modified ones) APK) They can take the sound over or they can knock down the audio output settings:
- The sound is on the TV menu, but disappears in a particular app.
- When playing video, the sound is delayed or interrupted.
- Unknown output devices appear in the sound settings (for example, HDMI ARC (disconnected)).
How to fix it:
- Remove suspicious apps: Settings → Annexes → Delete.
- Clear the cache and data for all multimedia applications (YouTube, Netflix, Prime Video).
- Disable the Auto Low Latency Mode feature (ALLM) In Settings → Display and sound → Image mode – it can conflict with sound.
YouTube
Netflix
Kodi/SmartTubeNext
Prime Video
Other/I don't know-->
3. Viruses and malware
Yes, Android TVs. TV This is most often done when you install applications from unverified sources (for example, through Send Files to). TV Or APKInstaller, signs of infection:
- 🛡️ Unknown apps appear on the menu.
- 🔊 The sound is spontaneously turned on/off (for example, advertising in the background).
- 📶 The TV is connected to unknown Wi-Fi networks.
What to do:
- Install an antivirus for Android TV (For example, Malwarebytes or Bitdefender).
- Perform reset to factory settings (see section below).
- Disable the installation of applications from unknown sources: Settings → Security and limitations → Unknown sources.
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Before resetting, save the list of installed applications: go to Settings → Annexes → Install applications and take a picture of the screen, which will help you quickly restore the desired programs after resetting.
Downed sound settings: where to look first
In 30 percent of cases, the sound is lost due to incorrect settings, and Xiaomi TVs have a few traps that users often don't know about:
1. Sound output mode (HDMI ARC, Optical, Bluetooth)
The TV can automatically switch to an external audio device even if it's not connected.
- Go to Settings. → Sound. → Sound output device.
- Make sure that the built-in speakers are selected (or TV Speaker).
- If the sound panel is connected through HDMI ARC, Check if the mode is on ARC customized HDMI-port.
| Withdrawal mode | Problem. | Decision |
|---|---|---|
| HDMI ARC | The sound goes to a non-existent sound bar | Select Integrated Speakers or Connect the Device |
| Optical (S/PDIF) | The TV thinks it's connected to the receiver | Turn off the cable or reset the sound settings |
| Bluetooth | The sound goes to the earphones that are off. | Remove the device from the list of associated |
| Dolby Digital | No sound in some applications | Switch to switch to PCM (standardization) |
2. Equalizer settings and sound effects
Settings menu → Sound. → You can randomly set the equalizer to something that makes the sound almost inaudible:
- 🎛️ Bass/soprano level – if all sliders are left-sided, the sound will be very quiet.
- 🔈 Night mode – limits volume and dynamic range.
- 🎵 Surround effects – may conflict with certain sound formats (e.g, DTS:X).
Recommendation: Reset the equalizer to default values or select Preset Standard.
Time restrictions (Parental control)
If you have Parental Controls on, the sound may turn off at certain times of the day or for specific applications.
- Settings → Parental control → Time constraints.
- Settings → Parental control → Content restrictions (can block sound at 18)+ content).
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If you forgot. PIN-Parental Control code, the only way to reset it is to completely reset the TV to factory settings.
Hardware malfunctions: when without repairs can not do
If the software didn't work, the problem is probably the hardware. Consider typical hardware breakdowns and their symptoms.
1. Damage to speakers or audio track
Signs:
- 🔊 The sound is there, but very quiet or wheezing.
- 🎵 One speaker is working, the other is not.
- 🔇 The sound disappears when the volume increases (amplifier goes to defense).
How to check:
- Connect external speakers or headphones to the TV via 3.5mm or Bluetooth, and if you have sound, the speakers are the problem.
- Knock on the back of the TV (carefully!) If a sound appears, it's a sign of poor contact in the audio track.
- Light a flashlight on the speakers: if the membrane is torn or deformed, replacement will be required.
⚠️ Warning: If you hear the smell of burning or see swollen capacitors on the board - do not turn on the TV until repair.
2. Failure of the audio chip or amplifier
On the Xiaomi motherboard TV The sound processing is performed by a separate chip (e.g. Realtek). ALC5631 or TI TAS5707). Its failure results in a complete absence of sound, even through external devices:
- 🔌 No sound through the speakers or through the HDMI ARC, or Bluetooth.
- 📵 The audio settings do not display output devices.
- 🔄 The TV freezes when you try to change the volume.
Solution: just replacing the audio chip in the service center, the average cost of repair is from 3 000 to 8 000 rubles (depending on the model).
3.Problems with HDMI-port-wire
If the sound is lost only when connected through HDMI (For example, on the computer or on the computer, check:
- 🔌 Cable – Try another, preferably with support HDMI 2.1 (for Xiaomi) Q2 75" and newer).
- 📺 Port on TV – connect the device to another HDMI-entrance.
- 🎮 Source settings – on a console or PC, select the correct audio output (for example, HDMI Audio instead of DisplayPort).
For diagnosis:
- Turn on the TV mode to display signal information: press Menu → Settings → All Settings → Device Preferences → Display & Sound → Advanced Sound Settings → HDMI Input Format.
- If No Signal or Unsupported Format is displayed there, the problem is in the cable or source.
4. Damage to plume or connectors
In Xiaomi TVs, speakers are connected to the motherboard through flexible plumes, which can oxidize or rub over time.
- 🔊 The sound appears/disappears when the TV is changed.
- 🔇 One channel (left/right) works, the other does not.
- 📵 In the speakers, interference is heard when touching the body.
The solution: disassembling the TV and replacing the plume, the cost is from 1,500 rubles (excluding diagnosis).
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If you decide to disassemble the TV yourself, be sure to take a picture of the location of all the plumes and connectors before turning off, this will help avoid errors in the assembly.
Resetting settings: when and how to do
If all previous methods failed, the last chance before visiting the service is a complete reset, which will delete all user data, but return the TV to the factory state.
There are two ways to discharge:
- Through the settings menu (if the TV is turned on): Go to Settings → On TV. → Resetting and remediation → Reset to factory settings. Enter PIN-code (default) 0000 or 1234, If you haven't changed it, confirm the reset and wait for the reset. 3-5 minute).
- Through the service menu (if the TV does not respond to the remote): Press the sequence on the remote: Menu → 1 → 3 → 7 → 9 (for PatchWall models) Select Factory Reset from the service menu (use volume buttons for navigation, button OK Confirm the reset and wait for the reset.
⚠️ Note: After a reset, the TV may require re-setting Wi-Fi, Xiaomi account, and app licenses (e.g., Netflix or Disney).+). Prepare the data for entry in advance!
If the reset did not help, the problem is precisely in the hardware - contact the service.
When to contact the service: prices and guarantees
If you've exhausted all your self-repair options, it's time to turn to the professionals.Here's the approximate prices for Xiaomi's audio repair TV (according to the data of service centers for 2026):
| Type of malfunction | Cost of repair (₽) | Duration of repairs | Guarantee |
|---|---|---|---|
| Replacement of speakers (pair) | 2 000 — 4 500 | 1-2 days | 6 months |
| Repair/replacement of audio chips | 3 000 — 8 000 | 3-5 days | 1 year |
| Replacement of speaker plume | 1 500 — 3 000 | 1 day | 3 months |
| Repairs HDMI-port | 2 500 — 5 000 | 2-3 days | 6 months |
| Diagnosis (if no cause is found) | 500 — 1 500 | 1 day | — |
Where to repair:
- 🏠 Official Xiaomi service centers - warranty for repairs to the 1 year, but above market prices. mi.com/ru/service.
- 🔧 Unofficial services are cheaper, but the risk of running into poor-quality repairs.
- 🛠️ Self-repairing is only if you have experience with a soldering iron and multimeter. for Xiaomi TV You can order spare parts on AliExpress (for example, speakers or plumes).
⚠️ Note: If your TV is warranty (usually 1 year from the date of purchase), do not open it yourself - this will void the warranty.