The problem with the lost sound on Xiaomi smartphones is one of the most common complaints of users: at one point, the speakers stop playing music, notifications or voice during the call, although the visual device works correctly, the causes can be due to both banal settings and serious hardware malfunctions. It is important to immediately determine the nature of the problem: the sound disappears completely (including system signals) or selectively (for example, only in applications).
In this article, we will look at all possible scenarios, from MIUI failure to physical damage to speakers, how to diagnose the problem yourself, what settings to check first and when to contact the service center. Particular attention will be paid to the models of Redmi Note 10/11/12, POCO X3/X4 and Mi 11/12, where the problem is most common due to the features of the firmware.
If the sound is lost after updating the system, falling the phone or connecting the headphones, the algorithm of actions will be different.
1. Checking basic sound settings
Start with the obvious: it's possible that the sound is turned off at the software level. There are several places in MIUI where you can accidentally turn down the volume or activate "quiet mode."
The first thing to do is:
- π Check the physical volume switch on the side of the phone.It sometimes gets stuck in the "No Sound" position after carrying it in your pocket.
- π± Go to Settings. β Sound and vibration and make sure the volume slider for media, calls and notifications is not at zero.
- π In the same menu, turn off the Do Not Disturb option (or configure exceptions if it is enabled).
- π§ If the sound is lost only when you connect the headphones, check the Type-C or 3.5 mm connector for debris.
Some Xiaomi models (like the Redmi Note 9 Pro) have a bug: once you connect a Bluetooth headset, the sound does not return to the speakers. Solution: reboot the phone or manually select the source of the sound in the notification panel.
2. Software failures: MIUI, applications and cache
Most often, the sound disappears due to firmware conflicts or crowded cache.
- The sound is only in the headphones, but not on the speakers.
- Apps play sound, system notifications donβt (or vice versa).
- The problem came after the MIUI update.
How to fix it:
- Clear the cache of system applications: Settings β Applications β Application management β Three points (menu) β Show system β Find Media and Sound, clear the cache
- Reset the sound settings to factory: Settings β System β Resetting the settings β Resetting the sound settings
- If the problem is in a particular app (like YouTube or TikTok), clear its data or reinstall it.
On Xiaomi models with Snapdragon processor 865/870 (Like Mi. 10T, POCO F3) post-update MIUI 14 It's because of a bug in the audio driver. HAL. The solution is a rollback MIUI 13 or waiting for a patch.
Check the version of MIUI in Settings β About the phone
Clear the cache of the Media and Sound apps
Restart your phone in safe mode
Update problematic apps through Google Play-->
Hardware problems: speakers, connectors, plumes
If the software methods didn't work, the reason is the hardware.
- π Total absence of sound, including system charging signals.
- π Wheezing, crackling or distortions when reproducing.
- π± The sound appears only when you press the body (for example, in the area of the lower speaker).
What could have broken:
| Component | Cause of failure | How to check |
|---|---|---|
| Down speaker | Moisture intrusion, fall, wear of the membrane | Call the phone β if the interlocutor hears you and you do not, the problem is dynamics. |
| Type-C/3.5 mm connector | Oxidation of contacts, mechanical damage | Connect the headphones β if there is sound, but on the speakers do not, check the connector |
| The audio chip plume | Overwhelming after disassembly, factory marriage | The sound disappears when pressed on the body or after vibration |
| Microphone | Dust clogging, liquid ingress | Record the voice memo β if there is no sound, the microphone is faulty |
π§ Self-examination:
- Light a flashlight into the Type-C connector - if you see darkening or green plaque, it's oxidation.
- Blow into the speaker (no bigotry!) If the sound comes up for a few seconds, it means there's garbage inside.
- Connect your phone to an external speaker via Bluetooth, and if there's sound, the problem is the hardware of the phone.
What to do if your phone falls into the water?
4.Conflicts after the MIUI update
MIUI updates often break the sound due to driver incompatibility.
- After upgrading to MIUI 14, the sound in the calls disappeared, but the music is playing.
- On the POCO X3 Pro after upgrading to Android 13, the sound became intermittent.
- On the Redmi Note 11 after updating the speaker became quieter in 2 times.
How to bring back sound:
- Reverse to the previous version of MIUI via Settings β About Phone β System Update β Three Dots β Select an Service Pack (you need a firmware file).
- Reset to factory settings (with data saved): Settings β Additional β Resetting β Resetting all settings
- If the sound is only lost on WhatsApp/Telegram, clear the data of these applications.
Attention! Some models (such as the Mi 11 Ultra) may require re-activation of the device through a Xiaomi account after resetting.
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Before rolling back the firmware, back up through Settings β Additional β Backup and Reset. This will save your photos, contacts and messages.
5. Hidden developer settings and sound effects
There are hidden options in MIUI that can block sound, such as activated Hearing Aid Mode or Monosound, which makes the sound quieter or distorted.
How to check:
- Activate Developer Mode: Settings β About Phone β MIUI Version (click 7 times)
- Go to Settings. β Additionally. β For developers and turn off: π Turn off absolute volume (if enabled). ποΈ Disable sound effects (may conflict with Equalizer). π Disable the sound amplifier (in some models causes distortions).
Β«Type USB defaultΒ»
Charging.
Media Device (MTP)
On models with Dolby Atmos (such as Mi 11 or Black Shark), the sound may be lost due to a failure in the handler. Solution: go to Settings β Sound β Dolby Atmos and select the Auto or Movie profile.
6. Problems with Bluetooth and external devices
If the sound is lost when connected to a Bluetooth speaker, headphones or car radio, the problem may be in the connection profile.
- π§ Headphones plug in, but sound goes through the phone's speakers.
- π In the car, the sound is interrupted or distorted.
- π The column is connected, but playback only begins after restarting.
How to fix it:
- Remove the device from the list of conjugates and reconnect: Settings β Bluetooth β Click on the device β Forget
- Reset Bluetooth settings: Settings β System β Settings reset β Resetting Wi-Fi, mobile network and Bluetooth settings
- On Android 12+ models, turn on βEnhanced Bluetooth Codecβ in the developer settings (helps with sound breaks).
Attention! There is a bug on the POCO F4 GT and Black Shark 5: when connected to Bluetooth 5.2 devices, the sound can disappear for 1-2 seconds.
7. When to contact the service center
If you tried all the methods, but the sound never came, it's probably a hardware problem.
- π§ The phone fell into the water or was exposed to severe humidity.
- π§ The sound disappears after physical exposure (blow, fall).
- π The speaker is making cracks or does not show signs of life at all.
- π± On the screen appears a warning about damage to the audio chip (on models with Snapdragon 888).
What to do before visiting the service:
- Make a backup copy of the data (in case of a motherboard reset or replacement).
- Check if the warranty is still valid. On Xiaomi models with a non-removable battery, disassembling the warranty on their own will void the warranty.
- If the phone is warranty, do not say that dropped it or urinated - this is a reason to refuse free repair.
π° Cost of repair (example prices for Moscow, 2026):
| Problem. | Cost (β½) | Repair time |
|---|---|---|
| Replacement of the lower speaker | 1 200β2 500 | 1-2 hours |
| Cleaning/replacement of Type-C connector | 800β1 500 | 30-60 minutes |
| Repair of the audio chip plume | 3 000β6 000 | 1-3 days |
| Replacement of microphone | 900β1 800 | 1 hour |
π‘
If the sound is gone after a fall and artifacts (strips, flickering) appear on the screen, the motherboard is likely damaged, in which case the repair will cost 50-70% of the cost of a new phone.