Owners of the popular Xiaomi Airdots 2 often face a situation where the headphones stop working in pairs, and the sound is played only on one side. This is due to the loss of communication between the right and left channels, making full use of the accessory impossible. The process of restoring synchronization requires the implementation of sequential actions that will force the devices to “find” each other again.
The essence of the problem lies in the features of the Bluetooth protocol in budget TWS-In headphones, where one channel (usually the right one) is the master and the other is the slave, and if the communication between them is broken, the phone sees them as two separate devices or does not connect at all, Synchronization is the process of creating a new pair between the headphones themselves before connecting to the smartphone.
In this article, we will discuss in detail the algorithm of actions to restore the Mi True Wireless Earbuds Basic 2. You will learn how to reset the settings correctly, in what sequence to extract the devices from the case and what indicators signal the success of the operation.
Reasons for desynchronization of headphones Xiaomi
Before you get into action, it’s worth understanding why Xiaomi Airdots 2 loses communication at all, most often when a user plugs only one headphone into the phone and the second one stays in the case or is turned off, at which point the active channel becomes a “master” for the phone, losing the ability to be a “master” for its partner.
Another common reason is that batteries run to zero. When voltage drops below critical levels, the Bluetooth controller can reset its current pairing settings, and third-party devices that have previously been paired with headphones try to automatically connect by intercepting the signal also have an impact.
⚠️ Attention: frequent change of connection sources (for example, switching between a laptop, tablet and phone without first breaking the connection) is the main enemy of stable operation. TWS-headset.
Failures in the Bluetooth module of the smartphone itself can also lead to incorrect storage of device profiles. If the phone has accumulated many old connection records, a new communication session may be initiated incorrectly, so it is important to periodically clean the list of associated devices.
Preparation for the resetting procedure
To sync successfully, you need to prepare not only the headphones themselves, but also the mobile device. The first step is to completely clear the connection history. Go to your smartphone's Bluetooth settings, search the Xiaomi Airdots 2 (or Mi True Wireless EBs Basic 2) list, and select the "Forget Device" or "Delete" option.
After deleting the recording, it is recommended to turn off the Bluetooth on the phone completely, which will prevent attempts to automatically reconnect during the setup process, which could interrupt the pairing procedure between the channels.
- 📱 Remove the headphone record from the Bluetooth list in your phone settings.
- 📶 Completely disable the Bluetooth module on your smartphone.
- 🔋 Make sure your case and headphones are at least 50 times charged%.
- 🧹 Wipe headphone contacts with dry cloth for better connection.
It is important to check the charge of the case, as the indicators on the headphones may not light up at low energy levels, which will confuse you. If the headphones have been lying idle for a long time, put them on charging for 15-20 minutes before the procedure.
Step-by-step: how to synchronize Xiaomi Airdots 2
Now, to the main stage, the key here is to follow the timings and the sequence of the headphones extracted from the charging case, and any deviation from the algorithm can lead to the headphones not seeing each other again.
⚠️ Note: Do not try to connect your headphones to your phone through Bluetooth settings until they are synchronized!
Perform the following actions strictly in order:
☑️ Synchronization algorithm
- Take both earbuds out of the charger case at the same time. The indicators should light up red and then start flashing white.
- Press and hold the touchpads on both headphones for 5 seconds until the lights go out. This will force the devices to turn off.
- Press and hold the sensors again for 7-10 seconds, the indicators will flash red, then white, and eventually one of the headphones (usually the right one) will flash white slowly (pair mode), and the second (left) will flash quickly (find a partner).
- Wait until one of the headphones goes out and the other one flashes rarely (every few seconds), which means they're connected.
Only after you see the above result (one flashes, the second does not burn), you can turn on Bluetooth on the phone. the list of available devices should appear only one name Xiaomi Airdots 2, not two identical.
Features of the left and right channels
In the Xiaomi Airdots 2, there is a clear division of roles. The right earpiece (R) almost always acts as the master that connects to the smartphone. The left earpiece (L) connects to the right one. That is why when you reset your settings, you often see two devices, but only play one.
If after the instructions are executed, the indicator on the left earpiece only continues to burn, and the right earphone is silent, then there has been a channel inversion. In this case, the reset procedure should be repeated, but at the time of switching on (paragraph 3), try to pinch the sensors a little longer or, conversely, shorter, to change priority.
| Status of indicators | Meaning | Action. |
|---|---|---|
| Blinking both (white) | Phone Search Mode (not synchronized) | We need to reset the settings. |
| One flashes, one off. | Successful synchronization of the couple | You can connect to the phone. |
| They burn red. | Charging or discharge of the battery | Put it in the case or charge it. |
| Blinking red | Waiting for pairing (dumping) | Waiting for the transition to white flashing mode |
Why is the right channel the main channel?
Understanding this logic helps diagnose the problem more quickly, so if you're on a phone, but the sound is only in your left ear, it's connected to a "subject" channel that doesn't broadcast the sound to the "master."
What to do if the headphones do not connect
Sometimes standard procedure fails the first time, and this may involve software-based freezes inside the earpiece, which requires a deeper reset, often called a "hard reset."
Put the headphones in the case and close the lid. Wait 10 seconds, then open the lid, but don't take the headphones out. Press and hold the sensors on both headphones right inside the case (if the design allows pressing) or quickly remove them and immediately press the sensors for 30-40 seconds. Indicators can blink several times and go out.
If that doesn't work, check the contacts. Oxidation or dirt on the contact patches can prevent the charge signal from being transmitted, which makes the earpiece "think" it's in the case and won't turn on. Carefully clean the contacts with a cotton swab dipped in alcohol.
It’s also worth trying to connect the headphones to another smartphone, and if they sync and work normally on another device, the problem lies in your main phone’s Bluetooth module or its connection cache.
Prevention of Connection Problems
To avoid wondering how to sync Xiaomi Airdots 2 with each other in the future, you should follow simple rules of operation. Always try to return the headphones to the case immediately after use, even if you plan to wear them in 5 minutes, which ensures that they turn off correctly.
Don’t let the batteries go to zero. The lithium polymer batteries used in these models don’t tolerate a deep voltage drop, which can cause the control controller to malfunction.
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If you switch between devices (like your phone to your laptop), first break the connection on the first device or turn off Bluetooth on it before looking for headphones on the second.
Periodically, every couple of months, it is useful to carry out a preventive reset settings according to the instructions described above, even if there are no problems, this clears the internal memory of the headphones from accumulated errors and old profiles.