Xiaomi's wireless headphones are not paired, which is familiar to many users: You take the device out of the case, but the sound is played in only one ear, or the Bluetooth listing has two identical names instead of one, which is a classic sign of the dissynchronization of True Wireless Stereo modules.
The problem most often is not the hardware breakdown of the speakers, but the software failure of the connection protocol, the left and right channels lose communication with each other and start to work as independent mono-device, and they can usually be restored by software methods without going to the service center.
In this article, we will discuss the mechanics of work in detail. TWS-Headsets, causes of failures and provide a step-by-step algorithm of actions. You will learn to perform a full reset (Hard Reset) and configure priority connection to enjoy surround sound without delays and breaks.
TWS mechanics and causes of desynchronization
True Wireless Stereo technology involves one device (the master) receiving audio from a smartphone and broadcasting it to a second device (the slug). If this communication channel is disrupted, the effect is that the headphones are not connected simultaneously, often a crowded memory buffer or address conflict.
A smartphone can remember the left channel as a separate device and the right channel as another, especially if they've previously connected to different gadgets, and the result is that the Android or iOS operating system sees two independent sound sources, and this knocks down the frequency allocation algorithms, and the stereo picture is destroyed.
Also, you should consider the influence of external factors: radio interference from Wi-Fi routers, microwave ovens or other Bluetooth gadgets can interrupt handshake procedures when leaving the case, if the module does not have time to sync in the allotted time, it goes into standby or single operation.
⚠️ Attention: A common cause of desynchronization is the low battery charge in the case. If the case does not charge the headphones to 100% during storage, one of the modules may discharge to zero and go into deep sleep, refusing to connect to the neighbor».
For stable operation, it is necessary that both channels have the same firmware version. Sometimes after updating the smartphone, communication protocols may change, and the old firmware in the headphones ceases to respond correctly to the requests of the new OS. In such cases, forced soldering of the connection is required.
Diagnosis: Why the smartphone sees two devices
When you see two identical names on the Bluetooth menu, such as "Mi True Wireless EBs Basic" and "Mi True Wireless EBs Basic (2)," it's a signal that pairing mode is activated on both channels independently.
Often this behavior is observed after the user manually disabled one of the channels in the phone settings, trying to "reconnect" it, which breaks the internal logical connection between the left and right modules, and now they perceive each other as alien devices.
Another reason could be the caching of old profiles, the phone's operating system stores the connection history, and if there's a conflicting profile left in it, the new communication session may not be initiated correctly, and the list of trusted devices must be cleared completely.
You can check the status through a special application Mi Wear or Xiaomi Earbuds. If the application sees only one headphone or shows different versions of software for the left and right channel, then the internal synchronization is broken, in which case the program reset is mandatory.
Step-by-step: Hard Reset headphones Xiaomi
The most effective way to get the headphones back on the same page is to reset completely, which erases the pairing memory and makes the modules re-discover each other, and make sure that the case and the headphones are at least 50 percent charged before you start.
Place both headphones in the charge case and close the lid. Wait 10-15 seconds for the devices to go into charging mode. Then open the lid without removing the headphones. Find the function button on the case case case case case (usually located between the indicators or on the back edge).
Press and hold the button for 10-15 seconds. The indicator should start flashing red several times, then light up white or orange (depending on the model), this is a signal that the memory is reset and the pair search mode is started.
☑️ Reset algorithm TWS
After a successful reset, remove the old pairing in your phone. Go to Bluetooth settings, find your headphones in the list, and click "Forget the device" or "Cancel pairing." Only then you can re-initiate the search.
⚠️ Warning: Do not remove the headphones from the case or close the lid early during reset. Interrupting the process may cause one channel to remain in configurator mode and not air.
If your model doesn't have a physical button, the reset is often done through touch zones, for example, touch the touchpads of both headphones simultaneously and hold for 5-10 seconds until the lights blink. The exact combination is better specified in the instructions for a specific model, such as the Redmi Buds 3 Pro or Mi True Wireless 2S.
Comparison of models and specificity of their connection
Xiaomi’s different headphone lines use different chipsets and connection protocols, which affects the recovery algorithm, and understanding your model’s features will help solve the problem faster if a standard reset doesn’t work.
Entry-level models, such as the Redmi AirDots series, often require longer button retention to enter soldering mode. Flagship active noise cancelling (ANC) models may have additional indicator states signaling firmware errors.
| Model headphones | Resetting method | Indication of success | Feature |
|---|---|---|---|
| Redmi AirDots / Airdots 2 | Holding buttons 20 seconds | Double flashing red | Frequent failure of the master/sleeve |
| Mi True Wireless 2 / 2S | Case button 10 seconds. | Orange blinking | You need an app to set up |
| Xiaomi Buds 3 / 3 Pro | Case button 15 seconds | White flashing | Automatic software update |
| Redmi Buds 4 Active | 5 quick pushes of a button | Fast flashing of LEDs | Low latency in game mode |
For premium models, it is critical to use the Xiaomi Earbuds app, which allows you to force the firmware update of each channel separately, which often solves problems of software version incompatibility that cannot be fixed by a simple reset.
Bluetooth compatibility and configuration issues
Sometimes the problem isn't with the headphones, but with the settings of the smartphone itself. Aggressive MIUI energy saving algorithms can kill the Bluetooth background process, believing it to be an unnecessary power user, which causes the connection between the channels of the headset to break.
Check to see if Absolute Volume mode or other experimental features are included in the developer menu. AAC and SBC codec conflicts can also cause desynchronization when the phone tries to switch to a better codec, but one of the headphones doesn't have time to adjust.
Try resetting your smartphone network settings, which will bring all network settings, including Bluetooth, Wi-Fi and mobile data, back to factory values, often eliminating hidden driver conflicts that prevent peripheral performance.
Settings → Connection and Sharing → Reset Wi-Fi, Cellular Networks and Bluetooth → Reset SettingsAlso worth paying attention to is the number of devices connected: if the phone is simultaneously in touch with a smartwatch, a fitness bracelet and other headset, the channel can be overloaded, and temporarily disconnecting other gadgets will help diagnose the problem.
Impact of Software and Updates
Software bugs are a common reason why Xiaomi headphones don't connect at the same time. Errors in the code of the Android Bluetooth stack can occur after an operating system update. Smartphone manufacturers regularly release patches that fix compatibility with popular accessories.
It is important to keep an eye on firmware updates for the headphones themselves. Many modern Xiaomi and Redmi models receive updates through a companion app. If one headphone is updated and the second one (in the case) is not, version mismatch occurs, blocking the pair.
In rare cases, clearing the cache of Google Play and Bluetooth services helps. Go to the application settings, find "Bluetooth", select "Storage" and click "Clear Cache" This will not delete your pairings, but will remove temporary files that may have been corrupted.
⚠️ Warning: Don't delay the update of the headphone firmware if the app suggests installing it. The updates often say "Improving Connection Stability," which directly addresses our problem.
If the problem appears immediately after the phone update, try to find information on the forums about the bugs of a particular version of MIUI or HyperOS. Sometimes it helps to temporarily roll back the system or wait for the next patch from the manufacturer.
Hardware malfunctions and physical wear
And if one of the headphones falls, falls into the water, or is vibrating, its antenna or controller may be damaged, and the software methods will be powerless.
Notice the charging contacts in the case and on the headphones themselves. Oxidation or contamination of the contacts causes one channel to fail to charge fully. The discharged module cannot maintain a stable connection to the master channel.
Do a visual inspection of the dynamic grid and body. Cracks can indicate internal damage. If the earphone cracks, hisses, or spontaneously turns off before desynchronization, this is a sure sign of a hardware defect.