You have played a video on Xiaomi Redmi Note 12 or run music on Mi TV Q2, But instead of the usual sound, silence? Sound loss on Xiaomi devices is more common than it seems. 80 percent of the time, it's not a hardware failure, it's a software failure or a missetting. But how do you tell a software bug from a speaker or an audio chip that's gone wrong?
In this article, we will look at all possible causes, from the banal switching off the sound with a button to damage to the speaker plume, you will learn how to diagnose in 2 minutes, which settings to check first, and when it is really time to bring the device to the service. And for owners of Xiaomi TVs, we have prepared a separate section with typical problems. HDMI-arch and Bluetooth audio.
Spoiler: 65 percent of the time, the sound comes back after you reboot or reset your audio profile, but if the problem is deeper, we have instructions for even rare cases like losing sound after you run through Fastboot.
1. Software failures: when firmware or applications are to blame
The most common category of problems is failures MIUI They can be different, they can be different:
- ๐ The sound is only in headphones, but disappears when you connect speakers
- ๐ต Music plays, but system sounds (notifications, alarm clocks) donโt.
- ๐ The sound appears and disappears by itself.
- ๐ฑ After updating MIUI The speakers stopped working.
The first thing you need to do is to restart the device, and 30 percent of the time, that solves the problem, especially if the failure is due to overloading of RAM. If the restart doesn't work, check:
Check the volume level (buttons) +/โ case)
Turn off Bluetooth (the sound may be going to an invisible device)
Start Safe Mode (hold the power button) โ "Safe regime")
Update MIUI to the latest version in Settings โ About Phone โ System Update
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Pay special attention to safe mode, and if you hear a sound, it's one of the apps that you've installed, and most of the problems are:
- ๐ง Applications for uniform volume (Volume Booster, Equalizer)
- ๐ Modified firmware or Magisk modules
- ๐ฑ Launchers from third-party developers (Nova Launcher, Microsoft Launcher)
How do you get out of safe mode?
If the problem occurred after the MIUI update, try to roll back to the previous version.
- Download the necessary firmware from Xiaomifirmwareupdater.com
- Rename the file to update.zip and place it in the root of the memory.
- Press Volume Up + Power to Enter Recovery
- Select Install update.zip and confirm
MIUI Update
Installation of a new annex
Connection of headphones/columns
Fall or impact of the device
By itself, for no apparent reason.
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Hardware malfunctions: speakers, plumes, connectors
If the software methods didn't work, it's time to check the hardware, and let's start with the obvious, the speakers, and the most common way Xiaomi smartphones fail is to check the hardware.
- ๐ Lower speaker (responsible for multimedia and calls)
- ๐ Top speaker (conversational, used during calls)
- ๐ง Headphone jack (if the sound disappears when connecting wired headphones)
Do a quick test:
- Call another phone โ can you hear the sound in the phone?
- Turn on YouTube video - does the sound play through the bottom speaker?
- Connect the headphones - does the sound appear in them?
| Symptoms. | Probable cause | Decision |
|---|---|---|
| There is no sound in the tube, but there is in the dynamics. | Failed speaker or its plume | Replacement of speaker (from 800) โฝ) |
| The sound is only in the headphones. | Oxidation of 3.5 mm connector contacts or failure in settings | Cleaning the connector with alcohol or resetting the settings |
| Crackling or wheezing when reproduced | Damage to the membrane speaker or moisture ingestion | Replacement of speaker or drying (if moisture) |
| The sound disappears when you press the body | The speaker or audio chip plume is leaving | Disassembly and soldering/steering |
Particularly vulnerable to hardware breakdowns of the model with a removable back cover (Redmi). 4X, Redmi Note 5. Over time, the plumes of the speakers are rubbed or oxidized. If you notice that sound occurs when you press a certain place on the body, this is a sure sign of a problem with the plume.
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Before disassembling the smartphone, remove the battery and wait 10 minutes - this will discharge the capacitors and reduce the risk of short circuit.
For Xiaomi Mi TVs TV quirky:
- ๐ Failure of built-in speakers (often after a voltage surge)
- ๐ Damage. HDMI-port (sound only goes through the optical output)
- ๐บ Maternity board malfunction (requires diagnosis in the service)
3. Problems with Bluetooth and wireless devices
If the sound is lost when you connect to the Mi Band, wireless headphones Xiaomi AirDots or speaker โ the problem lies in the Bluetooth module.
- ๐ง The headphones are plugged in, but there's no sound.
- ๐ The sound goes on the headphones and the speaker at the same time.
- ๐ฑ The device is constantly disconnected and connected again.
Let's start with basic diagnostics:
- Turn off the headphones/column in Bluetooth settings
- Remove the device from the list of conjugates
- Reboot both devices
- Re-conjugate the pairing
If the problem persists, try:
- ๐ Reset network settings (Settings) โ System system โ Resetting settings โ Reset Wi-Fi, mobile network and Bluetooth)
- ๐ฑ Update the firmware headphones (for AirDots Pro 2 and newer)
- ๐ง Disable the codec AAC In the developer settings (if there is a cracker)
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For models with a Qualcomm chip (Redmi Note 10, POCO X3) Bluetooth 5.2 problems are common โ try rolling back to Bluetooth 5.0 in the developer settings.
If the sound is only lost when played through a particular application (such as Spotify or YouTube Music), the problem may be in the codecs. โ The phone. โ Version. MIUI โ Press 7 times and change the setting:
Settings โ Additional โ For developers โ Bluetooth Codec โ Select SBC4.Sound settings: what you might have missed
MIUI It's known for its abundance of hidden audio settings that can accidentally get lost:
| Parameter | Wherever | What do you do? |
|---|---|---|
| Do not disturb mode. | Settings โ Sound โ Do not disturb | Disable or configure exceptions |
| Sound profile | Settings โ Sound โ Sound modes | Select "Normal" instead of "Silent" or "Meeting" |
| monosound | Settings โ Special opportunities โ monosound | Turn it off if the sound is only in one headphone. |
| Absolute volume. | Settings โ Additional โ For Developers | Turn off if the sound is too quiet in Bluetooth headphones |
Pay special attention to the notification settings. MIUI 13+ We have a feature called "Silent Notifications," which can completely turn off the sound for individual applications:
- Open the Settings. โ Notifications
- Select an app (such as WhatsApp)
- Make sure the Sound Switch is on.
- Check the priority of notifications (should be "High")
If you are using Xiaomi TV, check the settings HDMI-CEC:
- ๐บ Go to Settings. โ HDMI-CEC
- ๐ Turn off the option "Sound control through" HDMI"
- ๐ Reconnect. HDMI-cable
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On Xiaomi TVs, sound may disappear when connected to the sound panel through the HDMI-ARC. Try using an optical cable instead of a cable. HDMI.
5. Problems after updating or firmware
Updates MIUI Sometimes they bring not only new features, but also sound bugs:
- ๐ Total lack of sound
- ๐ต Distorted sound (robotic voice, echo)
- ๐ฑ Freeze when changing volume
If the problem appears immediately after the update, try these methods:
Clear the system cache (Settings) โ Memory. โ Clear the cache)
Reset the sound settings to standard
Reverse to the previous version of MIUI (if available)
Perform a reset to factory settings (save data!)
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For advanced users, if the sound disappeared after running through Fastboot, the vendor partitions probably weren't stitched.
- Download the full firmware package (marked "Vendor")
- Connect your phone to your PC in Fastboot mode
- The commands are: fastboot flash vendor vendor.img fastboot reboot
If you have been using a custom recavator (TWRP), The sound may have been lost due to incompatibility of the core:
fastboot flash recovery recovery.img
fastboot reboot๐ก
After you have firmware through Fastboot, always check the integrity of the partitions with the command fastboot getvar all. The absence of vendor or product values indicates incomplete firmware.
6.Moisture, falls and other physical damage
Even if your Xiaomi wasn't drowning in the water, moisture could get in through microslits.
- ๐ง The sound appears after drying by a hairdryer
- ๐ The speaker begins to wheez or crackle
- ๐ฑ On the screen there is a warning about moisture in the connector
What to do:
- Turn off the device immediately.
- Extract. SIM-memory-card
- Put your phone in a silica gel bag for 24 to 48 hours
- Do not turn on until the condensate disappears (check with a flashlight)
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Do not use a dryer to dry - hot air can damage the plumes. The optimum temperature is no higher than 30.ยฐC (use the fan at minimum speed).
After the fall, check:
- ๐ Integrity of speakers (visually and to sound)
- ๐ฑ Operating capacity of connectors (3.5 mm, USB-C)
- ๐ง The stains of the sleeves (if the device was disassembled earlier)
For Xiaomi TVs after a fall or hit:
- ๐บ Check the speaker mount (they can move away from the body)
- ๐ Look at this. HDMI-portage
- ๐ Make sure the sound does not go to the external sound system.
7. Features of models: what breaks most often
Some Xiaomi devices have sound-related illnesses, and the most problematic models are:
| Model | Typical problem | Decision |
|---|---|---|
| Redmi Note 8/8T | The bottom speaker plume is moving away. | Disassembly and soldering of the plume (from 1500) โฝ) |
| POCO X3 NFC | Sound distortion in Bluetooth headphones | Shut down. AAC-codec in the developer settings |
| Mi 10/10T | The sound disappears after updating to MIUI 13 | roll back MIUI 12.5 or stitch EU-firmware |
| Mi TV 4S | The sound is lost when connected to AV-receiver | Use an optical cable instead of a HDMI-ARC |
| Redmi 9/9A | A quiet sound in the speaker because of the grid | Cleaning the net with a toothpick or compressed air |
For Xiaomi Mi. A2/A3 (on pure Android) there is a problem with no sound in calls after the update:
- Install Google Phone as a default call app
- Clear the phone app cache
- Turn off VoLTE in the settings SIM-map
Owners of Black Shark (gaming smartphones) should check the settings of the game sound:
- ๐ฎ Open Shark Space
- ๐ Go to the sound settings.
- ๐ฑ Turn off the option "3D-headphone"
8.When to contact the service: signs of serious breakdowns
If you've tried all the methods, but the sound never came, you may need professional repairs.
1.The sound disappears even after a complete reset.
2. The speaker does not make any sounds (even system sounds)
3. Artifacts appear on the screen or the device spontaneously reboots
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Average prices for repairs in service centers:
- ๐ง Dynamic replacement: 800โ2000 โฝ (model-wise)
- ๐ Audio chip replacement: 2500-4000 โฝ
- ๐ฑ Repair of the plume: 1500โ3000 โฝ
- ๐ง Cleaning after moisture: 1000โ2500 โฝ
Before the service visit:
- Make a backup copy of the data
- Make a video showing the problem
- Check if the service has original parts for your model
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In official Xiaomi services, repairs are warranty only for factory defects, and if you drop your phone or it comes into contact with water, repairs will be paid.
For Xiaomi TVs, warranty repairs apply to:
- ๐บ Failure of speakers (if there was no mechanical damage)
- ๐ Problems with HDMI-Ports (except physical damage)
- ๐ Defects of the audio chip (subject to update to the last firmware)
If your TV is guaranteed, but the service refuses to be repaired, demand a written refusal with the reason.