Budget users TWS-Headsets from Xiaomi often face a situation when one of the headphones stops playing sound or devices do not see each other. Instead of listening to music in stereo mode, Xiaomi Airdots owners receive sound from only one channel, which completely kills the listening experience. The problem of desynchronizing the right and left modules is one of the most common complaints in technical forums and communities.
Fortunately, most of the hardware is intact, and it only requires software retraining of the devices. The process of restoring communication between the modules takes only a few minutes and does not require a computer or specialized software.
Below, we’ll go through all the steps of connection, from basic setup of new devices to complex cases where standard methods don’t work, and we’ll also touch on the nuances of hardware compatibility across generations of Redmi AirDots and Mi True Wireless Earbuds headsets.
Preparation for interfaces and compatibility check
Before you start actively syncing, you need to make sure your devices are physically capable of pairing up. Xiaomi’s wireless headphone line includes many models, and while they look similar, the internal communication architecture may differ. For example, the first generation models (Airdots Basic) use a transfer protocol other than the Airdots 2 or Airdots Pro.
It's important to understand that you can only pair two headphones from the same set or completely identical models. Trying to create a stereo pair from the left headphone Redmi AirDots and the right headphone from Mi True Wireless Earbuds Basic 2 is doomed to failure due to differences in firmware and frequencies. Make sure that both modules have sufficient battery power, because at low energy levels (less than 20%) they may not go into pairing mode.
Carefully wipe the charging contacts on the headphones themselves and inside the case. Oxidation or dust can prevent full charging, causing one module to go into sleep faster than the other. This is a common reason why users think that the headphones have “lost” each other, although the problem is trivial – a dead battery.
Basic instructions: how to connect headphones for the first time
The standard left-right-channel combination for Airdots and Redmi Buds is simple, but requires strict sequences, and you must first completely remove old records about your headphones from your smartphone memory. Go to Bluetooth settings, find the device (usually called the device). MI True Wireless EBs Basic_R or Airdots_R) and click "Forget the device" or "Disable».
Once you clear your connection history, place both earbuds in the charge case and close the lid for 10 seconds. This action will force the Bluetooth modules to turn off. Now pull out both earbuds at the same time. They should start flashing - usually the indicators are lit in red and white (or blue) alternately, at which point one earbud (most often the right one) acts as a master, and the second one as a slave (Slave).
☑️ Checklist of primary pairing
If the indicators on both headphones flash at the same frequency, then they are not connected yet, in this case, you need to press and hold the touch panels on both earphones for 5-7 seconds until they turn off, and then repeat the extraction procedure. When the communication between the channels is established, one of the headphones will stop actively blinking (go into the standby mode of connection to the phone), and the second will continue to search.
⚠️ Note: If after extraction from the case, the headphones flash blue in turn (one, then another) with an interval of 1-2 And if they flash at the same time and often, the stereo is not created.
The method of forced synchronization (Hard Reset)
In situations where the standard connection is down and the phone sees two separate devices (e.g., the phone is not connected, Airdots_L and Airdots_R), This method is relevant for Xiaomi Airdots, Redmi AirDots and Mi True Wireless Earbuds Basic models. First, put your headphones in the case, but do not close the lid to access the touch areas.
Press and hold the touchpads on both headphones simultaneously. Hold it for a long time - about 20-30 seconds. First, the indicators will light up red (off), then start flashing again (on), and only after that (about 5 seconds after re-on) will reset. At the time of reset, the indicators can flash red 3-4 times very quickly.
Why does the reset not always work the first time?
After a successful reset, put the headphones back in the case, close it and wait a few seconds. Then pull them out again. Now they have to automatically find each other. If only one device appeared on the phone's Bluetooth list (usually with an R index), then the stereo has been successfully recreated.
Table of indicators and their value when connecting
Understanding color is key to successful diagnosis. Different models may use slightly different blinking algorithms, but the general principles for the Airdots series remain similar. Below is a table that helps determine the current status of the connection.
| Status of indicators | Colour | Meaning | Action. |
|---|---|---|---|
| Blinking at the same time | Red/White | Interconnection mode (phone search) | Search the Bluetooth menu |
| Blinking in turn | Blue | Stereo mode (connected to each other) | Get on the phone. |
| Burning all the time. | Red. | Charging's coming. | Expect full charge |
| Fast flashing red | Red. | Low charge or pairing error | Charge or reset |
Note that in some versions of the firmware color may vary (for example, white replaced by blue), the main thing here is rhythm: simultaneous blinking indicates the search mode, and alternately, that the channels are connected.
Solving Channel Dissynchronization Problems
Sometimes it happens that the headphones seem to be connected, but the sound comes from only one, or the balance is biased. This can be caused by a software failure in the smartphone operating system. Try turning off Bluetooth completely on the phone, then turning it on again. If this does not help, restart the smartphone itself, this will clear the cache of Bluetooth services.
Another reason for the out-of-synchronization could be signal interference, and if you're in a place with a lot of Wi-Fi routers or other Bluetooth devices, the communication between the master and the plume may be interrupted. Try to move away from the source of the interference, and also check if the phone has Mono-audio in the special features section, which can block the second channel.
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If one earpiece is quieter than the other, check the speaker grid. Earwax often clogs the hole, creating the illusion of breakage or desynchronization. Clean the mesh carefully with a dry soft brush.
In rare cases, it helps to "over pairing" through another device, try to connect your headphones to a tablet or a friend's phone, if they are in stereo mode, then the problem is the settings of your main smartphone, in which case you may need to reset the network settings of the phone.
Hardware causes and the need for soldering
If software methods (reset, reconnect, software updates) do not work, there is a high probability of hardware malfunction. In budget models Xiaomi Airdots often uses a simplified scheme where one headphone (master) transmits a signal to the second. If the Bluetooth module in the “subject” earphone fails, you will not be able to connect them.
There's also the problem of a dying battery, and if one of the headphones runs out of power, it's not a good thing. 15-20 The second one works for an hour, and it's a sign of the degradation of the lithium polymer battery, so the headphone may not be able to maintain a stable connection to the pair, constantly breaking the contact. Replacing the battery in these compact cases is difficult and requires microscopic soldering skills.
⚠️ Attention: Self-opening headphones Xiaomi Airdots often leads to damage to fragile plumes and membranes of speakers. If the device is warranty, it is better to contact the service center, as the autopsy traces will void warranty obligations.
For enthusiasts ready for repair, there is a method of soldering modules. If you have two sets of non-working headphones (for example, one burnt left channel, the other right), theoretically you can cross-sold the Bluetooth module. However, this requires a precise selection of components, since even within the same model can use different versions of hardware (for example, JL chips of different revisions).
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If neither resetting, reconnecting, nor connecting to another phone helped, most likely the problem is of a hardware nature (battery or Bluetooth module).