How to return sound on Xiaomi devices: from smartphone to TV

Sound problems on Xiaomi devices are one of the most common malfunctions that users experience: suddenly there is no sound in speakers, headphones or while calling? 80% of the time, it’s a software failure, incorrect settings, or a clogged headphone jack, and this article will help diagnose the problem and bring back sound on Xiaomi smartphones (including Redmi, POCO, Black Shark, Mi TVs TV and smart speakers Mi Smart Speaker.

We have collected all the current ways to recover sound – from basic checks to hidden functions. MIUI And hardware tests, and we've focused on devices with Type-C connectors, where most of the time, the sound disappears because of contact oxidation or conflicting protocols, and if your gadget doesn't make a single sound, start with the first partition and check each item consistently. In most cases, the solution is in the first three ways.

Basic diagnosis: Checking the obvious

Before you dig deep into the settings or disassemble the device, make sure the problem isn't on the surface.

• 🔊 Volume level: Press physical volume buttons on the side of your smartphone or the TV remote. It's possible that the sound was just muffled to zero.
• 🎧 Connected headphones: Even if you don't use them, the system may "think" they're connected. Unplug all the accessories and reboot the device.
• 📵 Do Not Disturb Mode: Swipe down from the top edge of the screen and check if this mode is activated (the bell icon with cross-out).
• 🔋 Battery charge: At a charge level below 5%, some Xiaomi models automatically turn off speakers to save energy.

On Mi TVs. TV It's worth checking out:

• 📺 Selected sound source: in the menu Settings → Sound. → The output of the sound must be specified TV, not HDMI ARC or.
• 🔌 Connection to the sound bar: if TV connected to external acoustics through HDMI ARC, The sound can “go” there even when the panel is turned off.

⚠️ Note: If you are using Xiaomi with a Type-C connector (e.g, POCO F5 or Redmi Note 12), never connect the charger and headphones simultaneously through an adapter, this can lead to conflict of protocols and break the audio chip.

2. Software failures: reboot and reset sound settings

If the basic check didn't work, it's probably the software that's the problem, and let's start with the safest methods that don't affect user data.

Forced reset

An audio driver freezes is a common cause of loss of sound.

• On your smartphone: press the power button + Volume up for 10-15 seconds until the device restarts.
• On TV: Turn off power from the socket for 1 minute, then turn it on again.

Resetting of sound settings

V MIUI There's a hidden function of resetting audio parameter to the factory:

1. Open the Settings. → Sound and vibration.
2. Slip on the three dots in the top right corner and select Reset.
3. Confirm the action and restart the device.

For Mi TVs, the way is different:

Settings → All settings → Preferences → Resetting settings → Reset only sound settings

Make sure the problem isn’t with the headphones.

Check the volume level

Disable Bluetooth devices

Record current sound settings (if there are custom profiles)

-->

Clearing the cache of audio services

A cache that's clogged can block the sound drivers. Clean it up through Settings. → Annexes → App management. Find and clear the cache for:

• Media (Media Storage)
• Bluetooth (if the sound is lost when you connect to the speakers)
• Phone (if there is no sound during calls)

⚠️ Note: Some models (e.g. Xiaomi 13 Pro) may lose a thumbnail of covers in the player after cleaning the media cache.

3. Connector problems: Type-C, 3.5mm and Bluetooth

If the sound is only lost in certain scenarios (e.g. when you connect headphones or via Bluetooth), the problem lies in physical connectors or data protocols.

Type-C contact oxidation

Connector devices USB-C (for example, POCO X5 Pro or Redmi K60) They often suffer from contact oxidation, which leads to sound loss:

1. Connect headphones with a 3.5 mm connector through the Type-C adapter → 3.5 mm.
2. If there is sound, but with interference, the problem is oxidation. Clean the connector with a cotton swab dipped in isopropyl alcohol (do not use water!).
3. Blow the connector with compressed air (for example, a canister to clean the keyboard).

If the sound is not restored after cleaning, try to force the Type-C mode to switch:

adb shell settings put global force_use_audio_port 1

This command forces the system to use the Type-C audio port as its primary. USB.

Conflict of Bluetooth devices

If the sound is lost when connected to wireless headphones or speakers:

• 🔄 Forget the device in Bluetooth settings and connect it again.
• 📱 Update the firmware of the headphones (relevant for Xiaomi AirDots or Redmi Buds).
• 🎛️ Change the codec: in Bluetooth settings (near the device name) select SBC instead AAC or.

4. Hidden settings MIUI: Audio profiles and engineering menu

MIUI It hides a number of functions that can help bring back sound.

Resetting audio policy through the engineering menu

The engineering menu allows you to manually reset your audio routing settings.

1. Open the Phone app.
2. Enter the combination: ##36446337## (for new versions) MIUI 14+ It may not work – use the alternative method below).
3. Go to the Hardware Testing → Audio section.
4. Select Reset Audio Policy and confirm.

If the code does not work, use an alternative method:

adb shell am start -n com.android.settings/.DevelopmentSettings

Then manually enable the Engineering menu in the developer settings.

Set up audio profiles

V MIUI There are hidden audio profiles that can block the sound:

1. Install the app MIUI Tweaks (root rights required or enabled debugging by USB).
2. Open the Audio section.
3. Press Reset Audio Profiles.
4. Reset the device.

For Mi TVs, TV Similar functionality is available through the service menu:

Click on Menu → Settings → All Settings → Device Preferences → About → Click 5 times on Android TV OS Build

💡

If the audio appears after resetting the audio profiles but is too quiet, check Dolby Atmos settings in Settings → Sound. → Sound quality. Sometimes this mode artificially limits volume.

5. Update firmware and rollback to stable version

If the sound is gone after the system update, the firmware bug is to blame, in which case a rollback to the previous version or a patch installation will help.

Verification of current bugs

Before you do anything, check if it's a massive problem. Go to the official Xiaomi forum (c.mi.com) and find a topic that mentions your model and a problem with sound. MIUI 14.0.4 for Redmi Note 11 was a bug with missing sound in calls - it was fixed in patch 14.0.6.

Manual firmware update

If automatic updates don’t help, install the firmware manually:

1. Download the latest stable firmware for your model from the site MIUI Downloads.
2. Move the file to the root of internal memory (not to folders!).
3. Open Settings → About the phone → System update.
4. Slip on the three dots in the upper right corner and select Select a firmware file.
5. Specify the downloaded file and wait for the installation to be completed.

For Mi TVs, TV The process is similar, but the firmware file should be called update.zip And put it on a flash drive connected to USB-port.

⚠️ Note: Never install firmware from other models, even if they look similar (for example, Redmi Note 12 Pro and Redmi Note 12 Pro).+). This will lead to a blink (complete inoperability) of the device.

💡

If the sound is gone after the update, try resetting the sound settings first (section 2.2). 60% of the time, this solves the problem without rolling back the firmware.

6. Hardware malfunctions: when to carry in the service

If none of the software methods worked, the problem is probably hardware, and here are the signs that the device needs to be shown to a specialist:

• 🔊 Complete lack of sound in all scenarios (speakers, headphones, Bluetooth).
• 🔥 Extraneous noise (cracking, hissing) from speakers even when the sound is turned off.
• 💧 Traces of corrosion on the board (visible when disassembling) or moisture under the screen.
• 🔌 Damaged connector (e.g., bent Type-C pins).

The cost of repair depends on the model and type of malfunction:

Before you carry the device to the service, check:

• 📄 Warranty card: if the device is warranty, repairs can be free (except for damage from moisture).
• 🔍 Reviews about the service center: choose official Xiaomi partners (list on the website) mi.com/ru/service).

7. Alternative solutions: if nothing has worked

If the sound never came along, but the device is still manageable, you can try workarounds.

7.1 Use of external DAC

If the problem is in the audio chip of the smartphone, connect an external DAC (DAC) through USB-C. This will allow you to get the sound around the faulty chip:

• 🎵 Xiaomi USB-C to 3.5mm Headphone Jack Adapter (official adapter with built-in adapter) DAC).
• 🎧 DragonFly Red (advanced portable) DAC audiophile).

Wireless transmission of sound

If the Type-C or 3.5mm connector is not working, transmit the sound via Bluetooth:

• 📱 For a smartphone: connect any Bluetooth headphones or column.
• 📺 For TV: use a Bluetooth transmitter (for example, 1Mii B06), plug-in.

Software sound emulation

On smartphones with MIUI You can turn on visual alerts instead of sound alerts:

Settings → Special features → Hearing → Flash alerts

For TVs, set up subtitles for all programs:

Settings → Special features → Subtitles → Include

FAQ: Frequent questions about Xiaomi sound