A situation where one of the TWS-It's a sound that many Xiaomi owners know doesn't make, and it can happen at the wrong time, like when you're making an important call or when you're at the peak of your favorite song. Often the problem isn't with the speaker breaking down, but with the devices being out of sync or the software crashing.
Before you carry the gadget to the service center or write a complaint to the seller, it is worth conducting a series of diagnostic manipulations. In most cases, you can restore your work on your own in a few minutes without resorting to complex tools.
In this article, we will look at all possible reasons for the silence of one of the channels and offer step-by-step solutions, you will learn how to correctly reset, clean contacts and check the settings of your smartphone.
Primary diagnostics and charge check
The most common, but often ignored, reason is that one module's battery drains, and unlike wired models, Redmi AirDots or Mi True Wireless headphones depend on the charge of the case and their own batteries, and if one headphone was worse than the other, it might not have charged.
Put both devices in a charge case and leave them for at least 30-40 minutes. Pay attention to the indicators: if the LED on the problem earphone does not light up when installed in the case, contact areas may be contaminated.
⚠️ Warning: If the charging indicator does not light up even after cleaning, this may indicate a failure of the battery or power controller inside the housing.
Check if the magnets fit tightly, sometimes foreign objects or plaque interfere with contact, wipe the contacts with a dry soft cloth or cotton swab soaked in alcohol, and repeat the charging procedure.
💡
Use a dry toothbrush to clean the speaker mesh and contact points carefully so as not to damage the insides of the device.
Complete Reset (Hard Reset)
If the charge is fine, there's probably a software failure and the headphones can't see each other, and then you have to do Hard Reset, which is a procedure that returns the device to factory settings and re-synchronizes the left and right channels.
To start, remove the device from the Bluetooth list on your smartphone. Find your headphones (such as Mi Air 2 or Redmi Buds) in the Settings → Bluetooth menu and click “Forget the device” or “Disable.” This is a critical step without which the reset may not work.
After removal, place both earbuds in the case. Depending on the model, the actions may differ:
- 🔘 Press and hold the touch zones on both headphones during the 10-15 seconds until the indicators flash.
- 🔘 Or find the reset button on the case case case case (usually behind or inside) and hold it for 10 seconds.
- 🔘 For some Xiaomi models, you need to remove the headphones from the case and quickly press 5 times on the sensors.
☑️ Algorithm of resetting headphones
After a successful reset, the indicators should flash frequently to signal pairing mode. Now, re-start the search for devices on your phone.
Synchronization problems between channels
The frequent problem of budget and medium-sized models TWS-Headsets -- stereo pairs are out of sync. Headphones work independently, and sometimes the right channel loses touch with the left, starting to broadcast sound only from the phone, rather than transmitting a signal to the neighbor.
To understand what's going on, try connecting your headphones to another smartphone or tablet, and if the problem persists on another device, it's the headphones themselves, and if the sound comes up, it's the Bluetooth module of your main phone.
In some cases, manual steaming helps. After resetting (described above), wait for one headphone (usually the one that was last in the case or has priority) to blink quickly, and the other one to blink slowly, which means they found each other.
⚠️ Warning: Don't try to connect your headphones to your phone until they're in sync with each other, first they have to "marry" each other, and then they have to "marry" the phone.
If automatic synchronization does not occur, you can try forced connection through a special application Xiaomi Earbuds or Mi Wear, if your model supports them.
Comparison of popular models and their typical
Xiaomi’s different wireless acoustics lineups have their own design features that affect the frequency of problems. Below is a table that helps identify the characteristic symptoms for different series.
| Model | Type of management | Frequent problem | Method of decision |
|---|---|---|---|
| Redmi AirDots / Airdots 2 | Mechanical button | Button sticking, dissynchron | 5-fold press, reset in case |
| Mi True Wireless Earbuds Basic | Sensor/Button | A quiet sound in one channel | Cleaning the grid, resetting the settings |
| Xiaomi FlipBuds Pro | Sensor + Leg | Firmware error | Update via Mi Home app |
| Redmi Buds 3 / 4 | Sensor | Interruption of communications | ANC shutdown, reset |
Understanding your model helps you find a solution faster, for example, in models with mechanical buttons, contacts under the key are often oxidized, and in touch models, software crashes occur.
💡
Knowing the exact model of the device allows you to find a specific reset instruction, since there is no universal method for all Xiaomi.
Contamination of speakers and physical damage
Human earwax, dust and pocket pile are the main enemies of high-quality acoustics. If one earphone sounds quieter than the other or the sound is completely gone, maybe the speaker membrane is full.
Carefully inspect a metal or plastic mesh, if you see a dark plaque, it should be carefully removed, use a soft brush, dry toothbrush or a special sticky gel for cleaning equipment.
Do not use sharp objects (needles, toothpicks) to pick the net - you can pierce the membrane, and then the earphone is definitely not refurbishable. Also avoid moisture entering the body when cleaning.
If the sound is not visible after cleaning, check the device for physical damage, such as cracks, signs of falling or water, in which case hardware repair is required.
Balance and Mono Mode settings in Android
Sometimes the reason for silence of one channel lies not in the headphones, but in the settings of the operating system of the smartphone.
Go to your phone's settings along the Settings path → Sound and vibration → Balance. Make sure the slider is in the center. If it's moved left or right, the sound will only play back in the appropriate earpiece.
Also check the special features. In Settings → Advanced settings → Special features can be activated "Mono-audio" This mode is designed for people with hearing impairments and reduces the stereo signal to one channel, which can be perceived as a breakdown of the second earpiece.
Hidden Developer Settings
When professional repairs are needed
If neither reset nor clean nor reconnect helped, there is likely a hardware malfunction, which could be a battery failure, a speaker or a Bluetooth antenna.
Self-disassembly TWS-Headphones are extremely difficult, because they are usually assembled on glue without screws. Trying to open the body yourself is almost guaranteed to lead to final failure.
Contact an authorized service center, especially if the device is warranty. It is important for Xiaomi models to keep a check and box, as they are often required to confirm eligibility for free repairs.