You picked up your Xiaomi Redmi, POCO, or Mi 11 to listen to music or answer a call, and suddenly you found that the sound was gone. No notification melodies, no voices, no system signals. This is familiar to many Android smartphone owners, but it's especially common for Xiaomi users because of the features of their MIUI firmware. 80% of the time, the problem is solved in 5-10 minutes without going to the service center.
In this article, we will look at all possible causes of sound loss, from the trivial (accidentally pressed the volume button) to the complex (damage to the audio codec), you will receive step-by-step instructions with pictures, videos and checklists, and also learn when to carry the phone for repair. We will pay special attention to Xiaomi models of recent years (Redmi Note). 12, POCO X5, Mi 13), where the problem is often related to updates MIUI 14/15.
1. Check basic settings: volume, Do Not Disturb mode and sound profile
Start with the obvious, it's possible that the sound is off at the software level. There are a few places in Xiaomi where this could have happened:
- π Volume buttons: press the physical volume button on the sidebar. A slider will appear on the screen β if it's at zero, move to the right.
- π Do Not Disturb: Swipe down from the top of the screen to open the notification bar. If the bell icon is crossed out, tap it.
- π΅ Sound Profile: In the same "fast settings" look for the speaker icon (may be called "Sound" or "Profile"). Make sure you select the Sound or Vibration mode. + sound" not "no soundΒ».
If the sound does not appear after these manipulations, check the volume settings for individual categories:
- Open the Settings. β Sound and vibration.
- Scroll down to the Volume block and click on it.
- Make sure that the sliders for Media, Calls, Notifications and Alarms are not at zero.
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On some Xiaomi models (such as the Redmi 10), the volume sliders can reset after the MIUI update. If this happens, move them manually and restart the phone.
Important: If you use Bluetooth headphones, the sound could be automatically redirected to them. Turn them off in the notification panel or in the Bluetooth settings.
2.Reboot the phone and check hardware buttons
The sound may be lost due to a temporary failure of the audio driver or MIUI. The easiest way to solve this is to restart the device:
- π Press the power button for 2-3 seconds.
- In the menu that appears, select βRebootβ (or βRestartβ).
- π Wait 1-2 minutes until the phone is completely turned off and switched on again.
If the sound doesnβt appear after the reboot, check the physical buttons:
- π The volume button might have jammed when pressed. Move your finger or gently put it with a toothpick (don't press too hard!).
- π Connect the charger - sometimes contacts in the connector USB-C It oxidizes, and the phone βthinksβ that the headphones are connected.
Updates MIUI|Headphone connections|Falls/blows|On his own.|The other.-->
On Xiaomi models with an infrared port (for example, Mi 11 Lite), the sound may disappear due to a conflict with the remote control. Try to turn off the Infrared Port function in the settings.
3. Diagnostics of software failures: safe mode and resetting of sound settings
If the sound is gone after installing an application or updating MIUI, the problem may be a software conflict.
- Press the power button before the off menu appears.
- Tap and hold your finger on the "Switch off" item until a suggestion appears to go to Safe Mode.
- Confirm the transition. The phone will reboot with third-party apps disabled.
In Safe Mode, check the sound:
- πΆ Turn on music through the standard Music appΒ».
- π Call another phone.
- π Set an alarm clock and wait for it to work.
If the sound appears, one of the installed applications is to blame. Remove the latest added programs (especially memory optimizers, eQUALIZER or modified firmware).
Remove newly installed applications|Remove updates via Google Play|Check permissions for applications in Settings β Annexes|Reset the sound settings (see below)-->
If there is no sound even in safe mode, reset the sound settings to factory:
- Go to Settings β System and device β Additional β Resetting.
- Select βReset Sound Settingsβ (not to be confused with a full reset!).
- Confirm the action and restart the phone.
4.Firmware problems: rollback updates and cache cleaning
MIUI updates often bring not only new features but also bugs. If the sound is gone after the update (especially on MIUI 14/15), try the following steps:
Recoiling system updates
If the problem has recently appeared, you can return the previous version of the firmware:
- Open Settings β About the phone β System update.
- Slip on the three dots in the top right corner and select βRoll Back Updateβ.
- π± Confirm rollback. Phone will reboot and return to the previous version.
Warning: this only works for 10 days after the update, and if more time has passed, you'll have to reflash the phone manually.
Clearing the system's cache
A clogged cache can block the audio system, so it can be cleaned.
- Turn off the phone.
- Press the Power button + Volume up until the Mi logo (Recovery mode) appears.
- Use volume buttons to navigate and select "Wipe Cache Partition".
- Confirm the action and restart the phone.
What to do if Recovery Mode is not working?
| Xiaomi model | Frequent cause of missing sound | Recommended solution |
|---|---|---|
| Redmi Note 10/11 | Failure after the update MIUI 13β14 | Recoiling an update or cleaning the cache |
| POCO X3/X4 | Conflict with Optimizer Applications | Safe mode + removal of software |
| Mi 11/12 | Damage to audio codec after falling | Diagnostics at the service center |
| Redmi 9A/9C | Oxidation of 3.5 mm connector contacts | Cleaning the connector with alcohol |
5. Hardware malfunctions: speakers, connectors and audio codec
If the software methods didn't work, the problem could be the hardware, and here are the most common hardware reasons.
- π Dynamic damage: often occurs after a fall or moisture is hit. Check if the lower speaker (for music) and the upper speaker (for conversations) are working).
- π§ 3.5mm oxidation: If the phone thinks the headphones are connected, the only sound that comes through the headphones is through them.
- π§ Audio codec malfunction: The chip responsible for processing sound may fail after overheating or a voltage surge.
How to diagnose a hardware problem:
- Connect the wired headphones, and if they have sound in them, but they don't have speakers, it's the speakers or the audio track.
- Call your phone from another device, and if you're not listening, the problem is the top speaker.
- Shake the phone near your ear. If you hear a noise (like rattling), you may have lost contact with the speaker.
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If the phone falls into water or is subjected to a strong vibration (for example, in a car), with a 90% probability of the problem hardware.
To clean the 3.5mm or USB-C connector:
- Turn off the phone.
- Wet the cotton swab in isopropyl alcohol (at least 90%).
- Carefully clean the connector, avoiding excess fluid.
- Let the phone dry for 10-15 minutes before turning on.
Complex cases: flashing, speaker replacement and service center
If none of the previous methods worked, radical measures remain:
Phone flashing
A damaged firmware can block the audio drivers.
- Download the official firmware for your model from the MIUI Download website.
- Install the Mi Flash Tool on your computer.
- Connect the phone in Fastboot mode (clamp Power + Volume down when the phone is off).
- Follow the instructions of the program for installing the firmware.
β οΈ Warning: Firmware erases all data from your phone. Pre-backup through Settings β Additionally. β Backup.
Replacement of speakers or audio codec
If the diagnostics show a hardware malfunction, repairs will be required.
| Component | Cost of replacement (β½) | Duration of repairs |
|---|---|---|
| Down speaker | 800β1 500 | 1-2 hours |
| Top speaker (conversational) | 1 200β2 000 | 1 day |
| Audio codec | 2 500β4 000 | 2-3 days |
| USB-C/3.5 mm connector | 1 000β1 800 | 1 hour |
β οΈ Note: if the phone is warranty, do not open it yourself! Contact the official service center Xiaomi - repair warranty will cost free (provided that the malfunction is not caused by mechanical damage).
7.Alternative solutions: Bluetooth adapters and external speakers
If repairs are delayed and sound is needed urgently, use the workarounds:
- π§ Bluetooth headphones or speakers: connect them through Settings β Bluetooth. The sound will go to an external device.
- π USB-C/Lightning-Adapter for headphones: if the connector does not work 3.5 mm, buy an adapter to connect wired headphones through the charging port.
- π± External Bluetooth transmitter: connects to the phone via USB-C And it sends sound to any wireless headphones.
For models without a 3.5 mm connector (e.g. Mi 11 Ultra or POCO F4) Adapter can be ordered on AliExpress for 200-500 β½. Pay attention to compatibility with your model!
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If the sound is only missing in a particular app (like YouTube or TikTok), try clearing its cache: Settings β Apps β Select an app β Storage β Clear the cache.