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Why Xiaomi TV suddenly stopped making sound?

You've played your favorite TV show, and the Xiaomi Mi TV 4A, Mi TV Q1 or other model is silent like a fish? This problem is more common than it seems, and in 80% of cases it can be solved independently without going to the service center. The causes of the lack of sound fall into two categories: software failures (settings, firmware, applications) and hardware malfunctions (dynamics, plumes, audio chip).

The most common culprits of silence: 1. Accidental shutdown of sound through the remote or hot keys. 2. Resetting of sound settings after updating the firmware (relevant to Mi). TV Stick and Android models TV). 3. Conflict HDMI-devices (set-top box, sound panel) that "intercept" the audio stream. 4. Damage to audio drivers after improper power outage.

Before you panic, check the obvious: is Mute mode on, is it connected to a 3.5mm headphone or Bluetooth headset, and if those are all right, go to diagnostics.

1. Checking basic sound settings

Start with the simplest thing, checking current audio parameters, and often the problem is that you have randomly changed the volume settings or the audio profile.

How to open the sound menu on different models:

• 📺 Mi TV 4A/4S (Android TV): press Settings. → Sound.
• 🎯 Mi TV Q1/Q2 (Google TV): Settings → Display and sound → Sound.
• 🔌 Mi TV Stick: Settings → The device → Sound.

In the audio menu, pay attention to: • Volume slider – it should be above 0%. • Sound output mode – select TV speakers (if HDMI ARC or Bluetooth is worth). • Equalizer settings – reset them to default values.

⚠️ Note: On models with Dolby Audio (e.g. Mi) TV Q2 75") the sound may be lost when Dolby Atmos is turned on without the support speakers.

2. Resetting sound settings to factory

If the basic settings are fine but there's no sound, reset the audio settings, which will return all the values to the factory settings, eliminating possible software conflicts.

Instructions for Android TV (Mi TV 4A/4S, Mi Box)

1. Open the settings → Device → Sound.
2. Select Reset the sound settings (or Restore the default values).
3. Confirm the action.

For Google TV (Mi TV Q1/Q2):

1. Go to Settings. → Display and sound → Sound. → Additionally.
2. Press Reset sound settings.

After reset, be sure to restart the TV (press the power button on the remote for 5 seconds). If the sound appears, the problem was in the configuration. If not, move on.

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On some models, the sound reset is available via the engineering menu. To enter, press sequentially on the remote: Menu → Up. → Up. → Down. → Down. → Left. → Right. → Left. → Right. → On the menu, select Audio. → Reset (caution: you can knock down other settings here!).

3. Diagnostics of connected devices

Xiaomi TVs often "muffle" their own sound if they detect an external audio device - even if it doesn't work.

• 🔌 HDMI-Ports: Turn off all cables HDMI (If you hear a sound, there's a problem with one of the devices, plug them in one by one to identify the culprit.
• 🎧 3.5mm connector: Make sure that the audio input is not equipped with a headphone plug or cable plug. Even a half-inserted connector can block speakers.
• 📶 Bluetooth: Go to Settings → Connect devices and remove all the associated headsets. Sometimes the TV keeps sending sound to the disabled device.

Pay special attention to the HDMI ARC/eARC, because if the TV is connected to the sound bar or receiver through this port, the sound can go there even when the panel is turned off.

1. Disable the HDMI ARC cable.
2. In the sound menu, select the output of sound → TV speakers.
3. Reboot the TV.

4. Firmware update and system reset

If the sound disappeared after updating the firmware or suddenly "flew" for no apparent reason, the fault of the software failure.

Update to the latest version

Outdated firmware versions may contain bugs with audio drivers.

1. Open Settings → About TV → Update system.
2. Click Check for updates.
3. If a new version is available, install it (the TV will restart automatically).

B. Hard reset (if the update didn't work)

Resetting to factory settings will delete all data, but return to work. On Mi TV 4A models with firmware below 2.0.145, a reset can lead to loss of access to Google Play - be careful!

How to reset:

1. Open Settings → Device → Reset (or Settings → System → Data Reset).
2. Choose Delete Everything.
3. Enter. PIN-code (default 0000 or 1234).
4. Confirm the reset.

⚠️ Attention: On Mi models TV Stick reset is performed by holding the button OK You can use the remote for 10 seconds, and then the device will return to factory settings, but you may need to reset the network.

5. Checking hardware faults

If the software methods didn't work, the problem is the hardware.

• 🔊 Faulty speakers: Check them by connecting external speakers to the TV through 3.5 mm or HDMI ARC. If there is sound, the speakers are out of order.
• 🔌 Oxidized contacts: Disconnect the TV from the network, remove the back cover and check the plumes going to the speakers (relevant for models over 3 years old).
• 🔧 Burnt audio chip: If there's no sound even through external devices, the motherboard is a problem.

How to check the speakers without disassembly:

1. Connect to the 3.5 mm connector headphones or active speakers.
2. Include any content with sound.
3. If the sound is coming through the headphones, the speakers are not working. If not, the audio track is a problem.

The Mi TV 4S 55 and similar models have a problem with the TAS5711 amplifier chip, with the symptoms of only low volume or no sound, and the solution is to replace the chip in the service center.

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If the TV makes quiet clicks or crackles when turned on, but there is no sound, with a probability of 90% to blame the speakers or amplifier. Self-repair without experience can damage the board!

6. Alternative methods of sound output

If you can't recover the sound through the speakers, use the workarounds:

• 🎧 Bluetooth Column: Connect the Portable Column through Settings → Connected devices → Add a Bluetooth device.
• 🔌 HDMI ARC: Connect the sound panel or receiver to the port HDMI ARC Select this port as the source of sound in the settings.
• 📱 3.5mm audio output: Connect active speakers or headphones to analog output (if your model has one).

For models without HDMI ARC (e.g. Mi TV 4A 32), you can use an optical output (if present) or a Bluetooth transmitter connected to 3.5 mm.

If you are using Mi TV Stick, you can output the sound through:

1. Bluetooth headset (setting to Settings → Device → Sound).
2. HDMI-audio output splitter (if your TV does not support sound through the HDMI).

7. When to contact the service center

Self-repair is only justified in case of software failures. If after all the manipulations there is no sound, it is time to contact the specialists.

• 🔧 The TV does not reproduce sound through speakers or external devices.
• 🔥 On the board, burned elements or traces of melting are visible.
• 🔊 Speakers make extraneous noises (squeaking, crackling), but there is no sound.
• 📉 After a fall or impact (even a slight) the sound is gone.

The cost of repair in official Xiaomi services:

Before the service visit:

1. Take a picture of the serial number (located on the back or in the Settings menu → About TV).
2. Write down the model and firmware version.
3. Check whether the warranty will be maintained after repair (if the TV is guaranteed).

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Official Xiaomi service centers in Russia can be found on the website [mi.com/ru/service](https://www.mi.com/ru/service/). Avoid garage workshops – they often use unoriginal parts, which leads to repeated breakdowns.

FAQ: Frequent questions about the sound on Xiaomi TV