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 melody, no notifications, no voice. The situation is familiar? This problem is more common than it seems: according to service centers, every 5th call on Xiaomi is associated with a sound problem. But don't rush to carry the phone for repair: 80% of the time, you can fix the cause yourself in 10 to 30 minutes.
In this article, we'll look at all the possible causes of sound loss, from the commonplace random tap to serious hardware failures, how to diagnose a problem, what settings to check first, and when to really consult a specialist. And we've also collected unique data from models from 2022-2026, where sound is lost most often due to the features of the firmware HyperOS.
It doesn't matter if you have a Xiaomi 13T with Harman Kardon speakers or a budget Redmi Note 12 β the search algorithm is one. Let's start with the simplest and end with what requires the intervention of a wizard.
1. Checking basic settings: what you might have missed
Before you dig deeper, make sure that the problem is not on the surface, and experience shows that 30% of the time the sound is lost due to random changes in settings that the user does not even know about.
The first thing to do is check the physical switches and buttons. Some Xiaomi models (like the POCO F5 or Redmi K60) have a separate button to switch audio profiles, which can jam in the "No Sound" or "Vibration" position, try pressing it several times or brushing it with an alcohol napkin.
- π Volume level: Press the side volume button and make sure the slider isn't at zero.Sometimes it gets knocked down after updating or plugging in the headphones.
- π΅ Do Not Disturb Mode: Go to Settings β Notifications β Don't disturb and check if it's activated, especially if the sound is gone after 22:00, many users forget about the automatic schedule.
- π§ Connected devices: the phone could have got stuck on Bluetooth headphones or speakers. Open the notification curtain and turn off all external audio devices.
- π Reboot: A banal but effective way to reboot your phone is to reset the sound driver's temporary errors.
If you don't have the sound after you do this, then move on to the next step, but remember, 90 percent of the time, the problem is solved at the software level, without the phone being disassembled.
2. Software failures: when firmware or applications are to blame
Sound failures are often associated with firmware or application conflicts, especially for HyperOS phones, where the audio drivers are not yet fully optimized.
The first thing to check is system updates. Go to Settings β About Phone β System Update. If a new firmware version is available, install it. For example, in the Redmi Note 12 Pro+, the sound disappeared after upgrading to HyperOS 1.0.3.0, but corrected in patch 1.0.5.0.
- π οΈ Resetting sound settings: go to Settings β Sound and vibration β Additionally. β Resetting the sound settings, it'll bring all the parameters back to the factory.
- π± Safe Mode: Press the power button, then hold off the "Stop" button until the "Safe Mode" option appears. If it's sounding, it's the third-party app's fault.
- π Cache Clearing: Go to Settings β Annexes β Application management β Music./YouTube And you clean the cache, and sometimes it gets clogged and blocks the sound.
If the problem occurs after you install a specific application (like VLC or Equalizer), uninstall it and restart the phone. Also check permissions for audio-related apps in Settings β Privacy β Permissions β Microphone/Sound.
βοΈ Diagnostics of program failures
3. Hardware problems: when without repairs can not do
If the sound didn't come after all the software manipulations, it could be hardware, and you'd need a diagnosis at a service center, but you could identify some of the symptoms yourself.
The first sign of hardware failure is that the sound is partially lost.
- Only the speaker of the conversation works, but not the multimedia (or vice versa).
- The sound is in the headphones, but not through the speakers.
- Wheezing, crackling or distortions appear.
Here are the most common hardware reasons:
| Reason. | Symptoms | Xiaomi models, where it is more common |
|---|---|---|
| Contact oxidation dynamics | The sound disappears after moisture or temperature drop | Redmi Note 10/11, POCO X3/X4 |
| Damage to the plume speaker | The sound appears, then disappears when pressed on the body | Mi 11 Lite, Redmi 9A |
| Failure of the sound amplifier | Complete lack of sound, even in headphones | POCO F3/F4, Xiaomi 12T |
| Clogging dynamics with dust | Muffled sound, wheezing at high volume | Redmi 8/9, Mi A3 |
If you suspect a hardware breakdown, donβt try to disassemble the phone yourself, which could cause more damage. Contact a Xiaomi authorized service center, especially if the phone is warranty-free.
β οΈ Warning: If the sound is gone after a phone drop or fluid hits, turn it off immediately and do not turn it on until you visit the service.
4. Features of models: why some Xiaomi sound disappears more often
Some Xiaomi models have design features that make sound disappear more often than others. It's not a marriage - just engineering decisions that are worth considering.
For example, the Redmi Note 11 and POCO X4 series use a dual speaker with a separate amplifier for each. If the sound is lost in only one speaker (for example, the top one), the problem may be in the interboard plume, which wears out over time. In the Mi 11 Ultra and Xiaomi 12S Ultra, the sound can disappear due to overheating - when the load is high, the system automatically turns off the speakers for cooling.
Here is a list of models with typical problems:
- π± Redmi Note 10/11/12: a common problem - oxidation of the contacts of the lower speaker after moisture (even from condensate).
- π΅ POCO F3/F4/F5: The sound disappears after the update due to the conflict between Qualcomm and HyperOS drivers.
- π Mi 11 Lite: weak plume speaker - sound can disappear with a slight bending of the body.
- π§ Redmi 9/9A/9C: speakers quickly clog up with dust due to an open grid without protection.
If you have one of these models, check out specific solutions. For example, for the POCO F3, there is a patch from Xiaomi that corrects the sound after upgrading to HyperOS. You can download it on the official Mi Community forum.
How to check which speaker is not working?
5.Diagnostics through the engineering menu: hidden sound settings
If standard methods don't work, you can use the Engineering Mode, which allows you to test hardware components, including speakers and microphones.
To get into the engineering menu:
- Open the phone app.
- Enter the code ##36446337## (for new models on HyperOS, try #4636###).
- Choose Hardware Testing β Audio.
- Take tests for each speaker and microphone.
In the engineering menu you will see 4 key parameters:
- Speaker is a test of the main speaker.
- Receiver is a test of the conversation dynamics (top).
- Headset is a sound test in headphones.
- Mic is a microphone check.
If you don't have a sound speaker on the test, and the signal level bar doesn't move, it's 100% hardware. If you have sound, but it's muted, it could be the equalizer settings or the speaker grid damage.
β οΈ Warning: Do not change the settings in the engineering menu unless you are sure of their purpose. Incorrect settings can lead to complete loss of sound or damage to the speakers.
6. Sound recovery after updating or resetting
One of the most common causes of loss of sound is a failed firmware update, which is especially true for phones that have been updated over the air (OTA) or through the Mi Flash Tool, and in some cases, the audio drivers simply don't install correctly.
If the sound is gone after the update, try the following steps:
- Firmware rollback: If the update was recent, you can return the old version through Settings β About Phone β System Update β Three Points β Select the Service Pack.
- Manual firmware installation: download the full firmware package for your model from the Miui Download site and install through System Update β Three dots β Select a firmware file.
- Factory reset: extreme, but often helps. Back up your data first!
For models on HyperOS (e.g. Xiaomi 13/13T/14), there is a separate audio patch that can be installed via Mi Community.
1 Download the file fix_audio_hyperos.zip
2. Move it to the phone's root directory
3. Go to System Update β Three Dots β Select a firmware file
4. Confirm installation and restart the phoneIf the sound never appears after the reset, the problem may be damage to the /vendor partition where the drivers are stored, in which case only flashing through the Fastboot in the service center will help.
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Before resetting to factory settings, untie the Mi Account from your phone in Settings β Xiaomi Account. Otherwise, after reset, you will need to enter a login / password to unlock.
7.When to contact the service: signs of a serious breakdown
If you've tried all the ways, but the sound never came, it's likely that the problem requires professional intervention. Here are 5 signs that you can't do without the service:
- π The sound went missing after a phone drop or liquid hit.
- π₯ The phone overheats when trying to make sound.
- π οΈ In the engineering menu, speakers fail the test (no signal).
- π The sound works only in headphones, but not through speakers (even after cleaning the connector).
- π Sound levels gradually deteriorated over the course of several weeks.
The cost of repair depends on the model and type of breakdown:
| Type of repair | Average price (2026) | Duration of repairs |
|---|---|---|
| Replacement of speaker (one) | 800 to 2,500 β½ | 1-2 days |
| Replacement of the plume speaker | 1,200 to 3,000 β½ | 2-3 days |
| Repair of the sound amplifier | 2,000 to 5,000 β½ | 3-5 days |
| Cleaning for oxidation | 500 to 1,500 β½ | 1 day |
Contact only authorized Xiaomi service centers β this guarantees the use of original spare parts and preserves the warranty. Before visiting, back up your data and untie your Mi Account if your phone is locked.
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If the phone is warranty, don't open it yourself! this will void the Xiaomi warranty.