Owners of popular TWS-Headsets from Xiaomi and Redmi often face a situation where the right and left headphones stop working in pairs, playing sound only on one side or working as independent devices. This is a common problem that arises from communication channels being out of sync, where Bluetooth modules inside the case or the ears themselves lose their overall configuration.
The synchronization process does not require any technical skills or complex software, but adherence to the algorithm is critical to success. For the Mi True Wireless Earbuds Basic, Essential and AirDots series, the reset and repair procedure is almost identical. In this guide, we will detail all the steps of communication recovery, typical user errors and methods of eliminating them so that you can enjoy quality stereo sound again.
Before you start to manipulate the buttons and indicators in a complex way, you need to make sure that the problem is in the software disinchoon, not in hardware breakdown or battery discharge. Often users try to reset on devices with low battery power, which leads to incorrect completion of the procedure and the inability to enter the pairing mode. So the first step should always be a thorough diagnosis of the current state of the gadget.
Preparation of headphones and smartphone for the procedure
Before any manipulation of the pairing mode, you need to ensure a stable power supply to the devices. Put both earphones in the charging case and connect it to the power supply for at least 15-20 minutes, even if the indicators indicate a charge. Unstable voltage at a low battery level can interrupt the process of flashing the internal communication modules, which will cause the device to freeze.
Next, clear the list of stored devices on your smartphone. Go to Bluetooth settings, find previously connected headphones (for example, Mi True Wireless EBs) in the list. Basic_R or AirDots) and select "Forget device" or "Delete" option, then turn off Bluetooth on your phone completely to prevent automatic reconnection attempts during setup.
It is also important to clear the contacts on the charging pads inside the case and on the headphones themselves. Oxidation or contamination of the contacts can cause the case to not recognize the presence of headphones inside, and they will not charge or sync with each other when placed in the socket.
⚠️ Warning: Make sure that other applications that actively use Bluetooth (fitness trackers, smartwatches) are not running on your smartphone, as they can interfere with your search for a new device.
- 🔋 Charge the case and headphones to at least 50% for stable operation.
- 📱 Remove the headphone profile from the Bluetooth smartphone memory.
- 🧹 Wipe with an alcohol napkin the golden contacts on the headphones and inside the case.
☑️ Preparation for synchronization
Forced synchronization through reset
The main way to reconnect the right-left channel is to perform a hard reset, which causes the headphones to forget previous settings and re-find each other on the air, setting one as master and the other as slave. The algorithm may vary slightly depending on the model, but the basic principle is the same.
Remove both earbuds from the charging case. They should automatically turn on. If this does not happen, press and hold the touchpads on both headphones simultaneously for 5-7 seconds until the indicators light up red and then start flashing white. On some models, such as the Mi True Wireless Earbuds Basic 2, you need to hold the sensors until the indicators go out completely, and then press and hold them again for about 15 seconds until the red and white flashing appears.
The key is that once reset, the headphones must stop blinking at the same time, one of them (usually the right one) will start flashing white quickly to signal a search mode, while the second one should flash slowly or go out waiting to connect to the first one. If both continue to blink quickly and independently of each other, the procedure failed, and it must be repeated, pre-killing the Bluetooth process on the phone.
What to do if the indicators are not burning?
- 👆 Press and hold the sensors on both headphones at the same time.
- ⏱ Keep pressed until the color of the indicator changes (usually). 15-20 seconds).
- 🔄 Wait until one earbud flashes faster than the other.
The process of pairing with a mobile device
Once you have achieved a state where one earbud flashes fast and the other blinks slowly (or does not blink), you can switch to connecting to your smartphone. Turn on Bluetooth on your phone and start searching for new devices. The list of available gadgets should only appear one name that matches your model (for example, Mi True Wireless EBs Basic), not two separate devices with the prefixes L and R.
Click on the name of the pairing device. During the connection process, the system can request permission to access contacts or call logs — this is standard procedure for headsets that support answering calls. Once successfully connected, the indicators on both headphones should go out or light up with a faint blue light, indicating an active connection.
If the Bluetooth list still shows two devices or the connection is only to one channel, repeat the reset procedure again, but this time leave the headphones lying next to each other on the table for a while. 10-15 The second after the reset, without touching them, is the time it takes for the internal controller to establish a stable position. TWS-The connection (True Wireless Stereo) between each other before airing.
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When connecting for the first time after reset, it is better to be away from other active Bluetooth devices (routers, speakers) to avoid interception of the signal.
Synchronization Features for Different Models
Xiaomi’s audio lineup is extensive, and the control nuances can vary. For example, Mi True Wireless Earphones 2 or Air 2 often use double-touch to activate features, whereas budget Redmi Buds can be controlled through prolonged pressing. Understanding the specifics of your model helps to diagnose the problem faster.
For models with wireless case charging, it is important to consider that when resetting, the headphones may try to sync with the charger if it is active. In such cases, it is recommended to remove the headphones from the case, perform a reset in the hand, and only then bring the phone to pair. At the same time, some professional models require the use of the Mi Buds app or Xiaomi Earbuds to update the firmware, which can also solve the problem of desynchronization.
Below is a table that helps identify the status of indicators for different scenarios, which greatly simplifies diagnosis.
| Status of the indicator | Colour | Mode of work | Action. |
|---|---|---|---|
| Fast blinking. | White | Interconnection mode | Search for the device in Bluetooth |
| Slow blinking | White | Waiting for connection | Wait for the connection with the master headphone |
| It's burning all the time. | Red. | Charging/discharge | Put it in the case or charge it. |
| Blinking red/white | Red + White | Discharge regime | Release the buttons, wait for the reboot |
Use of Mi Buds / Xiaomi Earbuds app
For Android smartphone owners, especially Xiaomi and Redmi models, the official app is a powerful diagnostic tool that not only visualizes the charge of each headphone separately, but also compulsively updates firmware.
Once you have your headphones on, open the app and check the status of each channel, and if the app only sees one headphone, it means that the connection between the two is lost and software cannot restore it, it requires a physical reset with the buttons. However, if both are visible but not stable, Update can solve the problem of data protocol compatibility.
The app also has headphone search and touch management settings, check if Mono or Game mode is activated, which can change the sound balance and create the illusion of a malfunction of one of the channels, and resetting the settings inside the application to the factory can also help in difficult cases.
⚠️ Warning: Do not interrupt the firmware update process through the app, even if the headphone indicators are gone. Interrupting the data record can permanently incapacitate the controller.
Typical problems and ways to solve them
Even if you follow all the instructions, users can face difficulties. One of the common problems is a phantom connection, where the phone shows the status "Connected", but there is no sound, in which case you need to switch the Bluetooth settings, the properties of the connected device, switch the usage profile from "Headset" (for calls) to "Audio" (for music) or vice versa, and then completely reconnect the device.
Another common situation is desynchronization of sound, when the voice is ahead or lagging in one channel, which often happens when using high-resolution codecs (aptX, LDAC) in a noisy air environment. Try changing the codec to SBC or AAC in the developer's Android settings (Bluetooth Audio Codec), which will increase connection stability at the expense of quality, but will return synchrony.
If none of these methods work, it may be the hardware of one of the headphones that is the problem, like the failure of an antenna or a power controller, in which case, if the device is warranted, it is more advisable to contact a service center than to try to disassemble a miniature device yourself, risking damage to fragile plumes.
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90% of desynchronization problems are solved by a full reset and re-clearing the Bluetooth list on the phone.