Why there is no sound on Xiaomi: full diagnosis and fix

You have included a video on Xiaomi Redmi Note 12, launched music on Mi TV Q2 Or try to call through Xiaomi Smart Speaker, but there's no sound? This problem is more common on the brand's devices than you think, and causes range from a trivial failure in settings to serious hardware malfunctions. In 80% of cases, the sound can be restored independently without contacting the service center.

In this article, we will discuss all possible causes of lack of sound on Xiaomi smartphones, TVs, speakers and headphones, as well as give step-by-step instructions for diagnosing and troubleshooting. MIUI, which are often reset after updates, and typical user errors when connecting external devices.

Before you carry your equipment for repair, check out 10 key points from our guide – 9 out of 10 times it will save you time and money.

1. Checking basic sound settings

Start with the obvious: it's possible that the sound is just turned off or muted. There are several places on Xiaomi devices where this could have happened.

• 🔊 Volume Controller: Press the physical volume button on the side panel of your smartphone or the Mi remote TV. A slider will appear on the screen – make sure it is not at zero.
• 📵 Do Not Disturb Mode: Swipe down to open the notification panel and check if the crossover bell icon is active. MIUI 14 This mode can block all sounds, including alarm clocks.
• 🎧 Connected devices: If you have Mi True Wireless Earbuds or a speaker connected to your phone, the sound can be automatically redirected to them. → Bluetooth and disable unnecessary devices.

On Xiaomi TVs (e.g. Mi) TV A2 43) check:

• 📺 Mute button on the remote – it could have been pressed accidentally.
• 🔽 Volume level in settings: Settings → Sound. → Loudness. Sometimes, after updating the firmware, it resets to 0.
• 🔌 Connected HDMI-devices: some consoles (such as the Mi Box S) can take the sound on themselves.

⚠️ Note: On Xiaomi smartphones with dual speakers (for example, POCO F5 or Redmi K60) The sound may only be lost in one of them. Check both by holding your ear to the top and bottom of the body.

2. Software failures: reboot and reset settings

If the basic settings are fine but the sound is still gone, the problem may be a software failure, which is especially true after updates. MIUI or installing third-party applications.

Step 1: Forced reset

• 📱 On a smartphone: press the power button for 10-15 seconds until the device turns off and starts to restart.
• 📺 On TV: Turn off power from the socket for 1 minute, then turn it on again.

Step 2. Reset the sound settings

On smartphones:

1. Go to Settings. → Sound and vibration.
2. Click on the three dots in the top right corner and select Reset Settings.
3. Confirm the action. It'll bring all the sound parameters back to the factory.

On TVs:

1. Open Settings → System → Reset and Update.
2. Select Resetting Sound Settings (not to be confused with a full reset!).

Step 3: Applicable Rights Verification

If the sound is only missing from a particular app (like YouTube or Spotify), check its permissions:

1. Press the app icon → Information on the annex.
2. Go to Permissions and make sure that the Sound and Microphone are turned on.

Hardware malfunctions: speakers, connectors, plumes

If the software methods didn't work, the problem could be the hardware, and most often, the problem is:

• 🔊 Dynamics: Physical damage to the membrane (for example, after falling or getting moisture).
• 🎧 3.5 mm audio connector (on models where it is): oxidation of contacts or a wire break inside.
• 🔌 Trains: on Xiaomi smartphones, the plume speaker often departs after disassembling the body.
• 📶 Antenna module (for TVs): responsible for receiving a digital signal, if damaged, the sound may disappear on individual channels.

How to check the speaker yourself:

1. Call your phone from another device, and if you can hear someone and you can't, the problem is the top speaker.
2. Play a YouTube video and listen to the bottom of your smartphone, and if you have a sound, but it's quiet and hoarse, the speaker is damaged.
3. If you have audio in them and you don't have the speakers, the problem is the hardware.

On Xiaomi TVs (e.g. Mi) TV P1) check:

• 🔊 Hold your ear to the back – if you hear a quiet background noise, the speakers are working, but the signal does not arrive.
• 🔌 Try to connect external columns through HDMI ARC If you hear a sound, the TV audio system is broken.

⚠️ Note: If you disassembled the smartphone yourself (for example, to replace the battery), the plume of the lower speaker on Xiaomi models is often damaged when the back cover is not neatly removed.

4 Problems after MIUI Update

Updates MIUI Often bring not only new features, but also bugs. If the sound disappeared immediately after the update, use these tips:

Method 1. Recoiling of the update

On smartphones:

1. Go to Settings → About the phone → System update.
2. Click on the three dots in the top corner and select Remove Update (if available).

On TVs:

1. Open the Settings. → System system → Update and restoration.
2. Select Factory Firmware Restore (a flash drive with firmware will be required).

Method 2: Clearing the cache

Press the power button. → Resetting to Recovery Mode → Select Wipe Cache Partition. This won't delete your data, but it will reset temporary files that can block sound.

Method 3: Manually activating sound services

Sometimes, after an update, system services are disabled to return them:

adb shell settings put global audio_service_enabled 1


adb shell settings put global volume_music_enabled 1

These commands are executed through ADB (You will need a computer and enabled debugging USB).

💡

If after the update the sound in the calls disappeared, check the settings Settings. → Special facilities → Sound enhancement. Some versions. MIUI It's dropping and blocking the microphone.

5. Conflicts with third-party applications

Some applications (especially optimizers, antiviruses, or modified firmware) can block sound.

Step 1: Starting in Safe Mode

On a smartphone:

1. Press the power button before the off menu appears.
2. Press and hold the "Switch off" item - a suggestion will appear to go to safe mode.
3. This mode only runs system applications, and if you hear a sound, it's one of the apps you've installed that's to blame.

Step 2: Search for conflicting applications

Turning down applications that:

• 🛡️ Change system settings (e.g. Greenify, Battery Saver).
• 🎵 Work with sound (allisers, equalizers).
• 🔄 Optimize performance (e.g. CCleaner, DU Speed Booster).

Step 3: Verification of the rights of the superuser

If you have root access, some Magisk or Xposed modules can block audio services.

1. Open Magisk Manager and disable all modules.
2. Reset the device.

6. Features of specific Xiaomi models

Some Xiaomi devices have unique audio problems, and the most common ones are:

Xiaomi Redmi Note 10/11 series

• 🛠️ Solution: Replacement of the speaker (cost) ~1 500 ₽). The problem is often accompanied by an error The speaker does not respond in the diagnostic menu (#4636##).

Xiaomi Mi TV 4/4S/4A

• 🛠️ Solution: Update the TV firmware to the latest version. In the sound settings (Settings) → Sound. → HDMI ARC) Turn it off and turn it on again. Try another one. HDMI-cable (preferably with eARC support).

Xiaomi Mi Band 7/8 and Smart Speaker

• 🛠️ Solution: Reconnect the device to the Mi Home app. Check the notification settings in the app (Device Profile section) → For speakers: reset the settings with the Reset button on the back (hold 10 seconds).

POCO F3/F4/F5

• 🔊 Problem: Sound is distorted at high frequencies (wheezing, crackling).
• 🛠️ Solution: Turn off Dolby Atmos in Settings → Sound and vibration: Set the volume limit to 80% (in some firmwares, exceeding this threshold causes distortions).

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On devices with stereo speakers (for example, Xiaomi) 12T or Redmi K50) The sound can only disappear in one of these, and this is often due to the oxidation of the contacts on the motherboard after moisture is injected.

7.Diagnostics through engineering menu and tests

If you’re not afraid to dig deeper, use Xiaomi’s hidden diagnostic tools.

Method 1: Testing speakers through code

Dial on the phone keyboard:

##4636##

Go to Audio and run tests for each speaker if there's a burning next to one of them. FAIL, hardware-problem.

Method 2: Engineering menu (MTK)

For smartphones with MediaTek processors (e.g. Redmi) 9A or POCO M3):

##36446337##

Choose Hardware Testing → Audio and check all available tests.

Method 3: Logs of the system

If the sound disappears periodically, study the logs:

1. Install the Logcat Extreme app from Google Play.
2. Play the problem (for example, turn on music).
3. In the logs, look for errors with AudioFlinger, AudioPolicy or MediaPlayer tags.

⚠️ Warning: Do not change the settings in the engineering menu unless you are sure of their purpose! Incorrect settings can lead to complete loss of sound or even damage to the speakers.

8.When to contact the service center

If none of these methods helped, it's probably a hardware problem.

• 🔧 Diagnosis showed error Dynamics is not responding or Audio IC failed.
• 💧 The device fell into the water or was subjected to severe humidity (even if there are no external traces).
• 🔥 The motherboard shows blackened or bloated elements (especially next to the audio chip).
• 🔌 The sound disappears when connected to the charger (may indicate problems with the power controller).

Cost of repair (example prices for Moscow, 2026):

How to choose a service center:

• 🛡️ Xiaomi Official Centers: Warranty Repair, but More Expensive and Longer (list on mi.com).
• 🔧 Local workshops: cheaper, but check reviews. Ask if they have a warranty for repairs.
• 📦 Self-replacement: If you’re a power user, speakers for Xiaomi can be ordered on AliExpress (e.g., for the Redmi Note 10 Pro — ~500 ₽). But remember: disassembling the smartphone deprives of warranty!

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If your device is warranty, do not open it yourself! In official Xiaomi services, repair warranty is cheaper (or free), but only if the case is not damaged.

FAQ: Frequent questions about Xiaomi sound