The solution to the problem: why do not work two headphones Xiaomi at the same time

When Xiaomi or Redmi wireless headphones stop working in pairs, it's familiar to many owners. It usually happens like this: one ear (most often the right one) connects to the smartphone and the second one is silent, or the sound comes from only one channel, although the indicators are on both. The user faces a complete loss of stereo sound, which makes listening to music or talking impossible. The problem is not always a hardware breakdown, often the reason lies in the software dissynchronization of modules.

It is important to understand that modern TWS-Models like AirDots, Earbuds Basic, or Redmi Buds are master-client models, and one ear (usually the right one) takes on the role of master and connects to the phone, transmitting the signal to the other, and if that chain breaks, the system perceives the devices as two independent mono-gadgets. The critical factor of failure is often the out-of-synchronization between the left and right modules, not the Bluetooth antenna breakdown.

Before you bring the gadget to the service, it is worth trying to restore communication software methods, in most cases, it helps to completely reset the settings and reboot modules, and then we will discuss in detail the algorithms of actions for different scenarios of failure of the technique.

The main reasons for desynchronization of modules

To effectively fix a malfunction, you need to understand the nature of the malfunction, and Bluetooth protocol desynchronization is the most common cause, and it happens when one ear forgets the other ear and starts looking for a new pairing device, which happens when you connect to another phone or tablet without first breaking the pair.

The second common problem is different charge levels, so if one ear is discharged to zero and the other is working further, when you put it on the charge, the controllers may not be able to update their status correctly, so when you remove it from the case, they can't see each other, and the contact oxidation in the charger case also affects, so that one of the ears just doesn't charge or turn on.

🔋 Different battery levels inside the case, resulting in the disabling of one module.
📡 Signal interference from other wireless devices (Wi-Fi routers, microwaves).
📱 Conflict of connection profiles in the memory of the smartphone after the OS update.
🧼 Contamination of contact areas with earwax or dust.

Sometimes the problem is with the smartphone itself. Bluetooth cached data can conflict with new connection requests, and in these cases, cleaning the list of paired devices helps, so if you've previously connected your headphones to your computer or TV, they could automatically switch to them while remaining in standby mode.

⚠️ Warning: If the headphones have been in water or been hit hard, a software reset may not help. If moisture enters the body, there is a risk of short circuit of the controller, which requires replacing the module.

Full Reset (Hard Reset) method

The most effective way to get Xiaomi and Redmi back on the same page is to perform a full reset (Hard Reset), which erases the history of the pairings inside the headphones themselves and returns them to factory settings. Before you start, make sure that the charge of the case and the headphones themselves is at least 50%.

The reset process varies by model. Budget AirDots and Earbuds Basic often require holding touchpads. More advanced models like the Xiaomi Buds 3 or Pro may require using a button on the case. Accurately following timings is critical here.

☑️ Reset algorithm TWS headphone

Put both headphones in the case and open the lid:Make sure that the indicators are on:Clatch the touch panels for 15-20 seconds (or button on the case): Wait for the indicator to flash 2-3 times:Forget the device in the Bluetooth menu of the phone

Done: 0 / 1

Once the lights flash, the headphones go into search mode, and now you have to reconnect them to the phone, so it's important not to try to plug each ear separately, but wait for one name to appear on the list of devices that matches your model.

If the problem persists after the reset, try an alternative method through the Android developer menu. In some cases, it helps to turn off the option “Absolute Volume Level”. To do this, go to Settings → About Phone → MIUI version (7 times in a row), then to Additional → For Developers and find the desired item.

Setup via Mi Fit and Zepp Life

Xiaomi’s official tools allow you to delve deeper into the device’s diagnostics. Zepp Life (formerly Mi Fit) or Xiaomi Earbuds apps can display the real percentage of each ear’s charge separately, helping to reveal the hidden problem where one ear is 100% discharged.

Sometimes, firmware updates through an app solve the problem of unstable connections. Manufacturers regularly release patches that fix Bluetooth stack bugs. The firmware of modules is updated automatically when connected to the Internet via a smartphone host.

Model headphones	Management annex	Resetting function in the annex	Support for updates
Redmi AirDots	Zepp Life / Mi Fit	No (buttons only)	Rarely.
Xiaomi Buds 3	Xiaomi Earbuds	There is.	Yes.
Redmi Buds 4	Xiaomi Earbuds	There is.	Yes.
Mi True Wireless	Zepp Life	No (buttons only)	Depends on the version.

You can also check if Mono or Left/Right Channel Only is activated, which may have been triggered by accident when you're transported in your pocket, and then go back to standard stereo mode through the program interface.

The Secret Feature in Zepp Life

Some versions of the Zepp Life app have hidden sensor calibration. If the headphones don't respond to touch correctly, try finding Control Setup in the device menu and recalibrating the double tap. > Problems with the charging case and contacts Often users look for software solutions, forgetting about the physical condition of the device. If the contacts on the headphones or inside the case are contaminated, the device does not charge. As a result, you take out the headphones, one of them is turned on from the residual charge, and the second one is the oxidation of the contacts is the number one enemy of wireless acoustics. To use the electricians in the back of the liquator, and use the liquor in the glass retrator in the glass, the glass retrator, and then use the glass retr in the back in the glass. Also check if the headphones are tight in the case, the magnets should pull them in the right position, if the magnets are weakened or the case case case is deformed (for example, after a fall), the contact may disappear, in which case the headphones in the case do not charge, even if the indicator on the case is on fire. Bluetooth on Android and iOS The operating system of the smartphone also affects the stability of the connection. On Android, a problem with the profile is often encountered. A2DP (Advanced Audio Distribution Profile: If the profile is not working properly, the phone can see two Redmi AirDots L and Redmi AirDots R devices instead of one. iPhone owners should check the availability settings. → Universal access → Audio visualization can be activated mono-audio mode. In addition, iOS strictly controls Bluetooth power consumption and can “sleep” the secondary headphone module to save energy. 🍏 On iOS: Try disabling Bluetooth, rebooting iPhone and turning Bluetooth on again. 🤖 On Android: Clear the Bluetooth cache through the app menu (Settings) → Annexes → Show system-based → Bluetooth → Memory. → Clean up). 🔄 Switch the codec: In the developer menu, try changing the codec from AAC on SBC Sometimes it helps to remove all stored Bluetooth devices from the phone's memory. This is a radical but effective method. After cleaning the list, re-conjure the pairing, making sure the headphones are in search mode (blinking red and white/blue). 📊 One headphone does not charge: Headphones do not see each other: Quiet sound in one ear: Constant communication breaks When repair or replacement is necessary If neither reset, nor cleaning contacts, nor reconnecting did not help, a hardware malfunction is likely. Battery degradation is a natural process. Lithium-ion batteries in miniature headphones lose capacity faster than in smartphones. 2-3 In years, it can only work from a case, discharged instantly in the air, and the Bluetooth module can also fail inside one of the headphones, which often happens after a static discharge or severe overheating (for example, left in the sun in the car). In this case, one earbud simply stops transmitting data, becoming a "brick." Repair TWS-headphones are rarely economically feasible. Replacing the battery requires micro-soldiers and opening the sealed case, which is difficult to do well at home.It is more often cheaper to buy a new pair, especially given the availability of Redmi and Xiaomi models. ⚠️ Warning: Do not attempt to open headphones if they are warranty.Failure of seals and opening of the case instantly void the manufacturer's warranty obligations. 💡If, after completely resetting and cleaning the contacts, one earphone still doesn't connect to the other, 90% of the time it means the physical death of the battery or Bluetooth chip inside it (FAQ) Why does the right earbud work and the left earbud don't? In most Xiaomi models, the right earbud is the master. It connects to the phone. The left one connects to the right one. If the left one is silent, then the communication between them is broken, or the battery is in the left one. Try resetting by holding the buttons on both headphones at the same time. Can you use only one Xiaomi headphone? Yes, most modern models support mono mode. You can only get the right or left earphone and it will connect to the phone. However, to work in pairs, they must first synchronize with each other in the case or outside it (depending on the model). How do you know that the headphones are charged in the case? Usually, when placed in the case, the red indicator lights up completely, or changes color to white/green. If the phone is not charged at all, or the two devices are independently charged? You need to remove both devices from the Bluetooth list on your phone, put your headphones in your case, and then perform the Hard Reset procedure described above. Does the Android version affect the connection? Yes, newer versions of Android (12, 13, 14) have stricter security and energy saving protocols. Sometimes older headphone models can run unstable on new OSes.