Why Xiaomi’s Sound Doesn’t Work and How to Fix It: A Complete Guide

Have you turned on videos, music or tried to answer a call, but the sound on your Xiaomi device suddenly disappeared, POCO X5, Mi 11), and on TVs (Mi) TV Q2, Redmi Smart TV In 80% of cases, the malfunction is caused by software failures, but sometimes hardware failures or incorrect settings are to blame. In this article, we will analyze all possible causes of the lack of sound on Xiaomi, from the banal (Disturb mode disabled) to the complex (damage to the audio chip), and give clear instructions for diagnosis and repair.

It's important to understand that the algorithm for finding a problem depends on the type of device and the situation, for example, if the sound is only lost in the headphones, it's one thing, and if the speaker is not working during calls, it's another thing. We structured the material so that you can quickly find a solution for your particular situation. Start by checking for the simplest causes, and if they don't work, move on to a deeper diagnosis.

1. Checking basic sound settings

Before you break down, make sure that the problem is not the basic settings. On Xiaomi, the sound may be lost due to:

• 🔇 Active Do Not Disturb (especially if it is on schedule).
• 🎵 Volume level, down to zero (including separate regulators for media, calls and alarms).
• 🔄 Switching the audio profile to "Vibration" or "No sound".
• 🎧 Connected Bluetooth headphones that the system defaults to select as the output device.

How to check:

1. Pull the notification curtain down and make sure the icon is 🔔 Not crossed out (Do not disturb mode is turned off).
2. Press the physical volume buttons on the sidebar – a slider with the current level should appear on the screen.
3. Go to Settings. → Sound and vibration → Sound modes and select "Sound".
4. Open the Settings. → Connected devices → Bluetooth and turn off all headphones/columns.

If you have a sound after this manipulation, the problem is solved. If not, move to the next section. Note: some models (for example, Redmi Note 10 Pro) have a separate volume control for system sounds (in Settings). → Sound. → It's worth checking out too.

2. Software failures: reboot and reset settings

Common cause of loss of sound on Xiaomi – temporary failures in the work MIUI. They can occur after a system update, application installation, or even because the device overheats:

• 🔄 Forced reset (press the power button 10-15 seconds before vibration).
• 📱 Clearing the cache of audio-related applications (e.g. com.android.phone for calls).
• 🔧 Resetting sound settings to factory (without data loss).
• 🚀 Update MIUI until the latest version (sometimes the sound disappears due to bugs in the firmware).

Instructions for resetting sound settings:

1. Open Settings → System and device → Resetting settings.
2. Select Reset sound settings (some models called Reset media settings).
3. Confirm the action and restart the device.

If the sound is gone after the system update, try to roll back to the previous version. MIUI. For that:

1. Download the necessary firmware from the official Xiaomi website.
2. Go to Settings → About Phone → System Update → Three Dots (menu) → Select a firmware file.
3. Install the downloaded file and wait for the reboot.

⚠️ Attention: Firmware rollback can cause data loss if you haven't made a backup.On models with a locked bootloader (Redmi) 9A, POCO M3) Recoiling is possible only through Fastboot.

Problems with speakers: diagnosis and cleaning

If the sound is absent only in speakers (in headphones or Bluetooth everything works), the reason may be:

• 🧹 Dynamic pollution (dust, pile, moisture).
• 🔊 Mechanical damage (for example, after a fall).
• 🔋 Disconnecting the plume (frequent problem after disassembling the phone).
• 💧 Corrosion of contacts due to fluid ingestion.

How to check the speakers:

1. Call your phone from another device – if there is sound in the speaker, but quiet or distorted, the problem is pollution.
2. Turn on music and attach your ear to the bottom speaker (on most Xiaomi it is located to the right of the connector). USB-C).
3. Try to play the sound through the settings. → Additionally. → Diagnostics → Dynamics test (not available on all models).

If the speaker is contaminated, clean it with:

• 🧻 Soft brush (for example, for drawing).
• 💨 Container with compressed air (hold at a distance of 10 cm).
• 🧲 Weak magnet (to remove metal particles).

⚠️ Warning: Do not use sharp objects (toothpicks, needles) - they can damage the speaker membrane. 12T, Redmi K50) Check both speakers separately.

4. Problems with 3.5mm connector and Bluetooth

If the sound is lost only when connecting headphones (wired or wireless), the problem may be:

• 🎧 Damaged connector 3.5 mm (oxidation, break of contacts).
• 🔌 Faulty audio chip (on models without 3.5 mm, for example, Xiaomi 13).
• 📶 Failure of the Bluetooth module.
• 🔋 A discharged headphone battery (even if the indicator shows a charge).

Diagnosis:

1. Connect the headphones to another device – if there is no sound, the problem is with them.
2. Try other headphones in a 3.5mm jack (if you have one).
3. Turn on the settings. → Connected devices → Bluetooth and remove all saved devices, then reconnect.
4. To check the audio chip, use the command in ADB: adb shell dumpsys media.audio_flinger If there are lines in the conclusion with ERROR, chip.

Models without 3.5 mm (Xiaomi 12, POCO F4) sound is transmitted through USB-C If the audio is lost in both cases, the audio processor (e.g. Qualcomm) is to blame. WCD9385 It can only be replaced with a Snapdragon 8 Gen 1 in the service center.

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If the sound in Bluetooth headphones is interrupted, try turning off Settings. → Bluetooth → Absolute volume. This will solve the problem with unstable connection on many Xiaomi models.

5. Failures after update or firmware

One of the most common reasons for missing audio on Xiaomi is an incorrect update. MIUI. It can happen if:

• 📥 The update was interrupted (for example, due to a discharged battery).
• 🔄 Installed custom firmware with a bug in audio drivers.
• 🔧 The firmware is intended for another model (e.g. Global). ROM China ROM).
• 🛠️ The system does not have the necessary libaudio libraries.

How to fix it:

1. Flash the device through Fastboot with the official firmware (instructions on miuirom.xiaomi.com).
2. If the sound is lost after the update OTA, Try resetting: fastboot erase cache fastboot reboot
3. For custom firmware (LineageOS, Pixel Experience) check compatibility with your model on the forum XDA.

On some models (Redmi Note 8 Pro, POCO X3 NFC) After the firmware, it may be necessary to unlock the bootloader:

1. Apply for unlocking through the official Xiaomi website.
2. Connect your phone to your PC in Fastboot mode and execute: fastboot oem unlock
3. After unlocking, re-sink the device.

6. Hardware breakdowns: when you need help from the service

If none of the above methods worked, the problem is probably hardware.

How to diagnose a hardware breakdown:

• 🔍 Check if the phone is responding to the headphone connection (the icon should appear in the status bar).
• 📱 Connect your phone to your PC and check if it is defined as an audio device (in Windows Device Manager).
• 🔊 Use test calls – if the interlocutor hears you and you do not, the problem is in the speaker or audio track.

⚠️ Warning: If the phone has fallen into water or been subjected to severe vibrations (such as in a car), don't try to disassemble it yourself. corrosion can spread to other components and repairs will become more expensive.

On Xiaomi TVs (Mi) TV A2, Redmi Smart TV X) the sound may be lost because of:

• 🔈 Faults of the sound amplifier (often fails with voltage surges).
• 🔌 Problems with HDMI-ARC (if the sound is going through the receiver).
• 📺 Damage to the motherboard (for example, after a thunderstorm).

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If there is sound on the Xiaomi TV, but it is very quiet even at maximum, check the settings Dynamic range in Settings. → Sound. → Sometimes it's a "Narrow" that limits the volume.

7. Features of specific Xiaomi models

Some Xiaomi models have unique sound problems, and the most common ones are:

• Redmi Note 9/10/11 Series: Frequent failures of the audio driver after upgrading to MIUI 13/14. The solution is a rollback MIUI 12.5 or firmware through Fastboot.

Xiaomi. 11T The Pro and 12 Pro encounter a bug when the sound in the speakers disappears after using Game Turbo:

1. Open Settings → Special features → Improve the sound.
2. Turn off the Monoaudio option.
3. Reset the device.

On Xiaomi TVs with Android TV So the sound can be lost because of an application conflict, like Netflix or YouTube, they're hijacking the audio stream:

1. Close all applications through Settings → Annexes → Launched.
2. Reset the sound settings: Settings → The device → Reset → Resetting sound settings.

8. Alternative solutions and temporary workarounds

If the sound is still not working and you need to play the audio immediately, use these temporary solutions:

• 🎧 Bluetooth adapter: Connect headphones via an external Bluetooth 5.0 adapter (e.g. Xiaomi Bluetooth Audio Receiver).
• 🔊 External speaker: Use a portable speaker with a connection to USB-C 3.5 mm.
• 📱 Sound forwarding: Set up audio transfer to another phone via Settings → Connected devices → Sound transmission (available on the MIUI 14).
• 💻 Sound Emulation: Connect your phone to your PC and use Scrcpy to play audio through your computer.

For Xiaomi TVs:

• 📺 Connect the soundbar through HDMI-ARC effluent.
• 🔌 Use it. AV-sound-processor.

If the sound is only lost in a particular app (like TikTok or Instagram), try:

1. Clear the app cache: Settings → Annexes → [Name of name] → Warehouse → Clear the cache.
2. Disable battery optimization for this application.
3. Install an older version of APK (e.g. with APKCombo).

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On smartphones Xiaomi with IR-In port (e.g. Redmi Note 8 Pro) you can temporarily use an IR transmitter to control a speaker or TV with working sound.

FAQ: Frequent questions about Xiaomi sound