Why Xiaomi’s headphone doesn’t work: full diagnostics

The situation when one of the headphones Xiaomi suddenly ceases to play sound, familiar to many owners of budget and flagship TWS-Instead of the expected stereo sound, the user hears silence in one channel, which completely destroys the experience of listening to music or talking. Most often, the problem lies not in the physical damage to the speaker, but in the desynchronization of devices or a software failure that can be eliminated independently.

Recovery requires a consistent approach, from simple charge checks to complex resets to factory settings. It is important to understand that modern Bluetooth protocols sometimes fail when switching between signal sources. If your Mi True Wireless Earbuds is silent, don't rush it to the service center, as 80% of the time the problem is solved in 10-15 minutes.

In this article, we will discuss in detail the algorithms of actions for various breakdown scenarios, you will learn how to perform a hardware reset, why it is important to clean the charging contacts and in which cases the smartphone software is to blame. Proper diagnosis will save time and extend the life of your favorite gadgets.

Basic diagnostics and charge check

The first step should always be to check the battery level, because imbalances in the power system are a common reason for the silence of one channel. The leader and the led headphone can discharge unevenly due to the peculiarities of the Bluetooth connection or contamination of contacts. If one of them is completely sat down, it may not show signs of life even in the case.

Carefully examine the charging contacts on the headphones themselves and inside the case. They often accumulate earwax, dust or oxides that block the transmission of current. To clean, use a cotton swab slightly soaked in alcohol, then thoroughly wipe the surface with dry cloth. Make sure that the LED display indicators light up when you place the device in the dock.

⚠️ Note: Do not use sharp metal objects (needles, pins) to clean contacts, as you can damage the fine spraying or close the chain inside the case.

Leave the headphones in a closed case on charging at least on 40-60 Sometimes a deep-depleted Li-Ion battery takes time to "sweep" before it starts showing the status of charge. If after an hour of charging, the situation remains unchanged, move to software methods.

Synchronization and reconnection problems

The most common technical reason why one Xiaomi earphone doesn't work is the loss of sync between left and right channels.The devices may work in mono mode or one of them may be connected to the phone as a separate device with the same name.Your smartphone's Bluetooth list may display two Mi True Wireless Earbuds devices, which causes confusion.

To fix this, you need to complete a complete disconnect. Go to your Bluetooth settings on your phone, find your headphones, and select "Forget the device" or "Disconnect." Then turn off the Bluetooth on your smartphone completely. Put both earphones in the case and close the lid for 10-15 seconds so that they go into standby mode.

After a pause, open the case cover and press the pairing button (if you have one on the case) or simply remove both headphones at the same time. One new device should appear on the phone screen to connect. If the system offers to connect only one earphone, then the TWS (True Wireless Stereo) mode has not activated and a reset procedure is required.

Hardware reset to factory settings

If a conventional reconnection didn't work, you need to run a Hard Reset that will clear the internal memory of the headphones from configuration errors. The reset procedure differs depending on the model, but the general principle is to keep the touch zones or physical button on the case for a long time. This action forcefully overwrites the pairing profile.

For models without a button on the case (such as the Mi True Wireless Earphones Basic 2), you need to remove both headphones and simultaneously touch the touch zones on both devices. Hold your finger for about 20-30 seconds until the indicators start flashing red or go out. In some models, such as the Redmi Buds 3 Pro, you need to put the headphones in the case, open the lid and press the button on the case until the white indicator flashes twice.

Reset sequence (universal):


1. Remove the device from the phone's Bluetooth.




2. Place both headphones in the case.




3. Open the lid (do not close).




4. Press the button on the case (or sensors) for 15-30 seconds.




5. wait for the discharge indication (usually orange blinking).




6. Close the case and reopen for.

After a successful reset, the indicators should change behavior, signaling readiness for a new one. Remember to go back to Bluetooth settings and search for devices. Now your audio modules should be defined as a single stereo system, not as two independent mono-device.

Program conflicts and smartphone settings

Sometimes the reason is not in the headphones themselves, but in the operating system of the smartphone, especially if you use Xiaomi with a MIUI shell or HyperOS. An aggressive energy saving system can "kill" the process responsible for transmitting sound to the second channel, considering it to be background and not important, and there are also conflicts of AAC or SBC codecs when switching between applications.

Check the sound balance settings. Go to Settings → Sound and Vibration → Channel Balance (or similar path depending on the Android version). Make sure the slider is squarely centered. Shifting the balance to one side is a common reason users think the speaker is faulty.

Also worth paying attention to is system updates. If you recently upgraded your phone firmware, there may be a compatibility bug. Try restarting your smartphone in safe mode to eliminate the impact of third-party equalizer apps or audio amplifiers. In rare cases, cleaning the Bluetooth cache through the developer menu helps.

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Try connecting your headphones to another device (tablet, laptop, friend's phone) If there's sound everywhere, the problem is exactly with your main smartphone settings, not the headset.

Physical damage and contamination of nets

Even if the earpiece is flashing, the sound may be absent or very quiet due to the banal contamination of the protective mesh. Earwax, as it enters the body, freezes and covers the speaker's opening, creating a "congestion" effect. Visually, this may not be noticeable, but acoustic pressure cannot pass through the resulting plug.

Carefully remove the rubber cloth and inspect the metal or plastic mesh. If you see dark spots or plaque, gently brush them with a soft toothbrush. You can use a sticky mass to clean keyboards or a special gel. Do not try to pierce the mesh with a needle, as you can damage the speaker membrane located immediately behind it.

If the headphone falls, the plume inside the case may have gone off or the speaker soldered, and if after cleaning and all the software resets, one channel is silent and the other one is working perfectly, there is a high probability of a hardware defect. TWS-headphones are difficult and often leads to final breakage, so if you suspect an internal cliff, it is better to consult specialists.

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If physical cleaning and a full reset of the settings did not return the sound, the problem lies in the burnt out speaker or contact that requires a replacement module in the service.

⚠️ Warning: Do not use headphones immediately after cleaning with alcohol. 15-20 minutes so that the residues of the liquid do not fall on the electronic board and do not cause a short circuit.

FAQ: Frequently Asked Questions