Why only 1 Xiaomi wireless headphone works: troubleshooting

The situation when only one of the pair of Xiaomi or Redmi wireless headphones sounds is one of the most common problems of users. TWS-It's often sudden, you take the device out of the case, and instead of stereo, you hear music on one side, and it's annoying because it upsets the audio balance and interferes with the full use of the gadget when you're training, traveling or working.

The reasons for this behavior can be very different, from banal out-of-synchronization between right and left channels to software failures in the firmware or problems with charging contacts. In most cases, the device does not require complex repairs or replacement in the service center. Channel synchronization is a process that often gets lost when one of the modules is improperly removed or discharged.

In this article, we will go into detail the algorithms that will help bring a dumb earphone back to life, learn how to properly reset, clean contacts, and reconnect the device to your smartphone, sometimes the solution lies in little things that are easy to overlook in the initial diagnosis.

The main reasons for dissynchronization TWS-headset

The first step to solving this problem is to understand the nature of the problem, and when only one Xiaomi headphone is running, it most often indicates that the connection between two modules (Master-Slave) has been severed. One headphone continues to broadcast sound from the smartphone, and the second one is lost and does not receive an audio stream. This is a classic connection protocol failure.

And you also have to consider the physical factor, because if one of the headphones went out faster than the other, or didn't fit tightly into the contacts in the case, it could just shut down. Users often forget that the case is also an active participant in the charging process, and its condition directly affects the operation of the headset, and dirt, pile or oxidation can block the power supply.

⚠️ Warning: If the earphone is not showing signs of life (no indication, no sound), check if the contacts are stuck due to moisture or sweat.

Software conflicts in the smartphone operating system can also cause malfunctions. Updating Android or MIUI sometimes changes the algorithms of the Bluetooth stack, causing the old connection profiles to stop working correctly, in which case the system forgets how to properly distribute channels between devices.

It's important to distinguish between quiet and non-sensing, and if one channel is quieter than the other, the problem may be that the grid is contaminated with sulfur, not the electronics, but if the sound is gone, it's a communication break or a hardware malfunction.

Basic diagnostics and charging check

Before we go into the complex manipulation of reset codes, we need to rule out the basic reasons: make sure that the silent earphone is really charged. Put both devices in the case and leave them for at least 30-40 minutes. Indicators inside the case or on the headphones themselves should catch fire.

Often the problem lies in poor contact. Inside the charge case and on the headphones themselves are contact pads, which eventually become covered with oxides or dirt, carefully wipe them with a dry lilaless napkin or a cotton swab slightly soaked in alcohol.

• 🔌 Check the charging of the case itself - it may be discharged.
• 🧹 Clean the metal contacts on the headphones and inside the case.
• 📱 Make sure that the Bluetooth on your smartphone is active and not in flight mode.
• 🎧 Try to remove headphones from the case not at the same time, but in turn.

If you've cleaned and charged for a long time, you're going to reset software, and you don't have to ignore that, because the cleanliness of the contacts is the key to the stable operation of any wireless electronics, and the dirt creates resistance that prevents the battery from being fully charged.

⚠️ Warning: Do not use sharp objects (needles, pins) to clean contacts inside the case.You can damage the insulation or displace spring-loaded pins, which will lead to irreversible breakage of the charger.

Full Reset (Hard Reset) method of headphones

The most effective way to eliminate out-of-synchronization is to completely reset your headphones, which causes them to forget their previous connections and re-pair with each other. Xiaomi and Redmi have a universal algorithm that helps 90% of the time.

First, remove the device from the list of paired devices on your smartphone. Go to Bluetooth settings, find your model (e.g. AirDots, Earbuds Basic) and click "Forget the device" or "Delete." Then turn off the Bluetooth on your phone so it doesn't automatically try to reconnect during the procedure.

Now, to the reset mechanics, you usually need to pinch the touch zones (or physical buttons) on both headphones at the same time. Hold them for about 15-20 seconds. The indicators should flash several times (usually in red or white), which signals a reset. After that, put the headphones back in the case.

In some models, such as the Mi True Wireless Earphones 2, the procedure may be different: it often requires holding the function button on the case itself for 10 seconds until the indicator flashes white.

After you reset, turn on Bluetooth on your smartphone and start looking for new devices. Headphones should be defined as a new device. It is important that only one name appears on the list, not two separate ones (Left and Right). If you see two devices, then the synchronization between the channels has not returned, and the procedure should be repeated.

⚠️ Warning: Do not bring your headphones too close to your smartphone microphone or speakers during reset. The sharp beep that some models emit when reset can be unpleasant to the ear.

Configure via Mi Earbuds and Software Update

For owners of smartphones based on MIUI or HyperOS, a great diagnostic tool is the Mi Earbuds app (or built-in widget in the notification curtain), which allows not only to track the charge, but also to check the version of the headphone firmware.

Outdated software is a common cause of insecure work. Developers regularly release patches that fix connection bugs. Open the app, plug in your headphones, and check the About or Software Update section. If a new version is available, be sure to install it by leaving your headphones in your case or next to your smartphone.

The app can also reset the settings software-based if physical buttons don't respond, and some models allow you to adjust gesture control, which can help to determine if the touchpad is running on a silent earphone. If the tappas aren't recognized, the problem may be hardware.

Using official software provides a deeper diagnosis than standard Android settings. You can see the real percentage of charge of each channel separately, which helps to understand whether one of them discharges faster than the other due to battery wear.

Table: Typical symptoms and treatment methods

For ease of diagnosis, we have organized the main problems into a table, which will help you identify the nature of the malfunction faster and choose the right path to solve.

Note the last item in the table. If your phone sees "Mi True Wireless EBs Basic L" and "...R" as two different devices when searching for devices, it's a sure sign that they're not paired together. In normal operation, the phone should only see one device with the same name.

Regular maintenance and proper operation significantly reduce the risk of such problems. Do not leave headphones discharged for a long time, as the deep discharge of lithium polymer batteries is harmful to their capacity.

Critically, the moment of first pairing after purchase is critical: if you pull the headphones out of the case separately at a large interval, they may not have time to sync with each other, and the phone will connect to only one of them.

Hardware malfunctions and battery wear

If software techniques and cleaning didn't help, you may have experienced a physical breakdown. TWS-The battery degrades over time, and over time, the battery capacity drops, and one earbud can run out of power. 10-15 minutes while the second one is working for an hour.

Also worth checking is the dynamic head. Carefully listen to the silent earpiece at maximum volume. If you hear a crack, wheezing, or sound completely absent even after reset, it may be that the speaker has moved away from the board or burned, which often happens after moisture or a strong bass beat.

The moisture protection in Xiaomi and Redmi’s budget models is often nominal. sweat during exercise or sudden rain can lead to oxidation of the internal board. If you notice that the problem occurs after physical activity, the risk of corrosion is high.

In the case of hardware breakdown, self-repair is often impractical due to the miniaturization of parts and the lack of spare parts, it is easier to contact a service center or purchase a new headset, especially if the warranty period has already expired.

Prevention of Connection Problems

To keep the problem of "only one earpiece working" from coming back, follow simple rules of operation. Always put the headphones in the case immediately after use. Don't leave them lying on the table where they may run out or lose communication.

Clean the case and the devices themselves regularly. The accumulation of dirt in the case is the main reason that the earphone does not charge until the end and quickly fails. Once a month, it is recommended to do a full discharge-charging cycle to calibrate the battery controller.

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Use silicone earpieces only of the original size, and too tight earpieces can put excessive pressure on the body and break the tightness by letting moisture in.

Keep an eye out for smartphone updates. Sometimes Bluetooth codec problems are solved by Android security patches, and also try not to take your smartphone too far away from the headphones in places with large Wi-Fi networks to avoid signal interference.

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Regular cleaning of contacts and timely update of firmware prevent 80% of problems with desynchronization TWS-headphone.

Frequently Asked Questions (FAQ)