When a favorite track is cut off in mid-word or the sound disappears in Xiaomi headphones, it can piss off even the most calm user. Often the problem lies not in a hardware defect, but in a software failure or incorrect connection configuration. Modern wireless models such as Mi True Wireless Earbuds or Redmi Buds are complex gadgets that depend on the stability of the smartphone operating system and the quality of the radio channel.
Before you carry a device to a service center, you should do a thorough diagnosis yourself. In most cases, you can restore your performance in a few minutes by performing a series of simple steps to reboot or reconnect. Ignoring simple steps to check often leads to a false conclusion about the breakage of the speaker.
In this article, we will take a closer look at all the possible causes of audio loss, from the banal battery discharge to codec conflicts. You will learn how to correctly reset settings and where to look for hidden parameters in MIUI. One of the most common reasons is the desynchronization of left and right headphones, which is solved by a complete pairing of devices.
Physical status check and basic connection
First, you need to eliminate the basic mechanical problems. Make sure that the charge case and the headphones themselves have a sufficient level of charge. If the indicators do not burn when extracted from the case, the contacts may have oxidized or the battery has run out, and it is also worth checking whether the protective film on the touch areas is closed, which often happens with new devices.
It is important to check if the audio output device is correctly selected in the system. Sometimes the smartphone automatically switches the audio stream to the speaker or another Bluetooth device. Go to the Bluetooth settings and make sure that the connection status is displayed as "Connected" for both channels: Audio and Media.
- 🔋 Check the charge level of the case and the headphones themselves - low voltage can cause the sound module to turn off.
- 🧹 Clean the speaker mesh of earwax and dust using a dry soft brush.
- 📱 Make sure your Bluetooth profile is activated A2DP stereo.
⚠️ Warning: If the headphones have been in rain or high humidity, do not try to charge them immediately.Let the device dry for 24 hours in a warm, dry place to avoid short circuits.
Diagnostics through the Xiaomi Earbuds app
For deep diagnosis and customization, owners of original products Xiaomi recommended to use a specialized application Xiaomi Earbuds (formerly Mi Buds M8 or similar versions for different lines), this software allows you to see the real state of the battery, check touch control and, most importantly, update the firmware of the device.
Often the lack of sound is due to a bug in the old version of firmware, which the developers have already fixed. In the application, you can find the headphone check section, where the system automatically diagnoses every speaker and microphone. If the application sees the headphones, but the sound does not go, the problem is most likely software.
The application interface also allows you to reassign the touch functions. Sometimes users accidentally activate the "Transparency" or noise cancellation mode, which can create the illusion of silence or distort the sound beyond recognition. Resetting the equalizer settings to standard values often helps to restore the purity of the sound.
Where to download the application for old models?
Bluetooth and audio codec settings in MIUI
The MIUI operating shell has advanced developer settings that directly affect the quality and availability of sound. If standard methods don't work, you should go to the Developer Menu, and you can find it by making a few quick clicks on the build number in the About Phone section.
In this menu, we're interested in the Bluetooth section, where you can change the audio codec (SBC, AAC, aptX, LDAC). Sometimes the default codec is not supported by the headphones or conflicts with the current application, which leads to silence. Try to force the codec to switch to SBC or AAC for verification.
You should also pay attention to the option "Absolute volume." If this feature is on, the volume of the headphones synchronizes with the volume of the phone. When you turn off this option, you can adjust the volume independently, which sometimes solves the problem of quiet or disappearing sound.
Settings -> About Phone -> (7 times click on "MIUI Version") -> Additional settings -> For developers -> Bluetooth Audio Codec☑️ Actions in the Developer Menu
Resetting and reconnecting devices
If the software settings are down, the most effective way is to completely reset the headphones, which may vary depending on the model, but the general principle is the same: you need to pinch the touch zones or the physical button on the case before changing the display, which will return the device to the factory parameters.
After reset, be sure to remove the old pair from the Bluetooth list on your smartphone. Find the name of your Redmi Buds or Mi AirDots, click "Forget the device" or "Disable." Only then start the pairing process again, which will clear the connection cache and install a fresh encryption key.
In some cases, resetting the network settings on the smartphone itself helps, which will delete all stored Wi-Fi passwords and Bluetooth pairs, so be prepared to re-enter them, but this often resolves system conflicts of Bluetooth drivers.
| Model headphones | Resetting method | Indication of discharge |
|---|---|---|
| Mi True Wireless Earbuds Basic | Hold the sensors for 20 seconds. | The indicator flashes 3 times |
| Redmi Buds 3 Pro | Case button 10 seconds. | The indicator flashes white |
| Mi AirDots 2 | Double touch of the sensor | Fast flashing red |
| Xiaomi FlipBuds Pro | Case button 15 seconds. | Orange blinking |
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After reset, the headphones go into pair search mode, so immediately open the Bluetooth list on the phone to connect.
Application Conflicts and System Errors
Sometimes the sound is not lost everywhere, but only in a particular application, such as YouTube or Telegram, in which case the problem lies in the cache of the application itself or its playback settings, and cleaning the application data or reinstalling it often returns the audio.
MIUI system errors can also block audio streaming. If all apps have lost audio, try restarting your smartphone in Safe Mode. If that mode is where the sound appears, it means that a third-party app installed recently is causing the conflict.
And remember, the special features of the Monoaudio feature, if it's on, the stereo is combined into one channel, which can be perceived as the absence of sound in one of the headphones. Check the path of the Settings -> Advanced Settings -> Special Options -> Hearing.
⚠️ Note: When you reset your network settings on your phone, you will lose all your stored Wi-Fi passwords. Make sure you know the password from your home network before performing this operation.
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Try connecting your headphones to another device (tablet or laptop), and if there's sound, it's the smartphone, not the headphones, that's the problem.
Hardware malfunctions and when to go to the service
If none of the software methods worked, there's a high probability of physical failure, which could be a Bluetooth module failure, a speaker membrane damage, or a battery problem that doesn't hold loads, and signs of hardware failure are cracking, wheezing at low volume, or a complete failure of one of the channels.
It's also worth looking at the charging contacts inside the case, and if they're locked in or oxidized, the headphones may not charge up to 100 percent, which causes the radio to be unstable and the signal to be lost.
If the device is warranty-free, do not attempt to disassemble it yourself. Violation of seals will result in denial of service. Contact Xiaomi's authorized center for professional diagnostics.