Modern. TWS-Xiaomi’s True Wireless Stereo headphones, such as Redmi AirDots, Mi True Wireless Earbuds or Haylou, have become incredibly popular due to their excellent value for money, but owners often find themselves in a situation where gadgets stop working in pairs: The sound comes from just one headphone, or the smartphone sees two different devices instead of one headset, a condition called desynchronization, and it's easily fixed manually.
The process of restoring communication between modules requires precise sequences, as pairing algorithms may differ from generation to generation of devices. In this article, we will discuss in detail how to force the left and right channels to synchronize your music to sound again in stereo. It is important to understand that before you start manipulating, you need to follow several preparatory steps to avoid errors.
Don’t panic if the lights flash randomly or the device doesn’t respond — this is a standard situation for low-cost electronics when signal loss occurs. We’ll look at universal methods that are suitable for most models of the brand, including Redmi Buds and Mi Air 2. Your task is to follow the instructions carefully and not miss the steps of cleaning the connection history.
⚠️ Warning: Before starting the procedure, be sure to remove old entries about your headphones from the Bluetooth list on your smartphone, otherwise re-pairing may not go through correctly.
Preparation for the synchronization procedure
The first step is to completely clear the connection cache on your mobile device. Go to your phone's Bluetooth settings, find your Xiaomi Earbuds (or similar name) in the list of previously connected devices, and select the option "Forget Device" or "Delete." This is a critical step, as the smartphone may try to connect to an old, "broken" communication profile, ignoring the new headset settings.
When you remove the device from the list, you need to turn off the Bluetooth module on the phone itself, which will avoid automatically intercepting the signal during the setup process. Make sure that both earphones have sufficient battery power. If the indicators are dim or do not light up at all, place the headset in the charging case for 15-20 minutes. Low charge is often the cause of unstable operation of the radio module and the inability to enter the pairing mode.
You also need to wipe the contact pads on the headphones themselves and inside the case with dry cloth, so oxidation or dust can prevent one of the modules from charging properly, so the system will assume that there is only one device in the case, and once you make sure that the contacts are clean and the charge is available, you can move to a direct reset.
☑️ Preparation for synchronization
Universal method of discharge through the case
Most Xiaomi models, including the Redmi AirDots 2, Xiaomi Earbuds Basic S and Mi True Wireless Earphones 2 Basic, use a similar reset algorithm through the charging case. This method is most effective in 90% of cases of desynchronization. First remove both earphones from the case. If they were on, they can automatically try to connect with each other, as reported by a quick flash of indicators.
You need to manually turn them off. To do this, press and hold the touchpads on both headphones simultaneously for 5-7 seconds until the indicators go out. After turning them off, put both devices again in the charging case. Make sure they sit tightly in the sockets and the indicators on them light up, signaling the start of charging.
Now, without removing the headphones from the case, press and hold the touch areas on both devices simultaneously. You'll need to hold them for about 20 to 30 seconds. You'll see the lights flash red several times, then they can flash white or blue, and eventually go out or start flashing white slowly, which means that the headset's internal memory is cleared and ready for initial pairing.
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If the indicators do not respond to touches inside the case, try to slightly press the headphones down with your finger to improve contact with charging kicks.
Redmi AirDots and Mi True Wireless Earbuds Basic
For the popular Redmi AirDots series (1 and 2 generations), there is a specific sequence of actions that is often confused with conventional inclusion. After you have performed a reset (holding the buttons in or out of the case until the indicators are extinguished), put both headphones back in the case and close the lid for 10 seconds. Then open the case, but do not remove the devices immediately.
Get both of these headphones out at the same time, and at that point they should start flashing white lights quickly, which means TWS pairing. Don't rush your phone to Bluetooth! Wait 10 to 15 seconds. If the headphones are successfully synchronized, one of them (usually the right one) will stop blinking fast or flash less often, and the other one may go out. That's a signal that the stereopara is in place.
Only then turn on Bluetooth on your smartphone and start searching. The list should show one device called, for example, Redmi AirDots. If you see two devices with the same name or one called Redmi. AirDots_R», The other is simply Redmi AirDots, which means that the synchronization between the channels has not gone through, so you need to repeat the procedure, taking more time to hold the buttons to reset.
| Model headphones | Indication of successful discharge | Button retention time | Features |
|---|---|---|---|
| Redmi AirDots 1 | Triple flashing red | About 20 seconds. | Mechanical buttons |
| Redmi AirDots 2 / Basic S | Extinguishing indicators | About 15-20 seconds. | Sensory management |
| Mi True Wireless 2 / 2S | Case indicator flashes | 10 seconds (case button) | Reset button on the case |
| Xiaomi Buds 3T / 3 Pro | Indicator inside the case | 10 seconds (case button) | An annex is required |
Customization of models with a button on the case (Mi True Wireless 2, 2S, 3)
More advanced models, such as the Mi True Wireless Earbuds 2, 2S, and the new Buds 3 and 4 series, have a physical reset button on the case of the charging case. This simplifies the process significantly. Place both headphones in the case and leave the lid open. Find a round button on the back or bottom of the case.
Press and hold this button for 10 seconds. The indicator located on the case (usually between the legs or on the edge) will flash white, signaling the transition to pairing mode. At this point, the headphones inside will also reset their internal settings and try to find each other. After you release the button, close the case for a few seconds, then open it again.
Turn on Bluetooth on your phone. If you have a proprietary Xiaomi Earbuds utility installed (or Mi Buds), it can automatically offer an animation connection. If there is no application, just select the device from the list of available ones. For these models, it is highly desirable to use the firmware update app, since many problems with desynchronization are solved at the software level.
⚠️ Note: When using the button on the case, make sure you don’t keep your finger on the sensors of the headphones themselves inside, so as not to cause a conflict of off and reset commands.
Using Xiaomi Earbuds App for Diagnostics
For owners of modern Android and iOS models, the official Xiaomi Earbuds app is available. It is a powerful tool that allows you not only to control noise reduction and equalizer, but also to perform deep diagnostics. If manual methods do not help, connect your headphones to your phone (even if only one channel works) and launch the application.
The settings menu often features a Reset or Factory Reset option, which performs a program reset more reliably than mechanical button retention, and the app will show the exact charge of each earphone separately, and if one of them shows 0% or does not show at all, the problem may not be in sync, but in the physical malfunction of the battery or contacts.
In addition, through the application, you can update the firmware (Firmware). Xiaomi developers regularly release updates that correct errors in the Bluetooth protocol and improve the stability of the connection.
What to do if the app does not see the headphones?
Problem Solving: Only one headphone works
When you've been manipulating the sound from one ear, it requires special attention, and often it's because the phone only connects to one module (the master device) and the other is just off or in sleep mode. Check the balance of sound in your smartphone's special settings (path: Settings → Special features → Hearing → Balance).
If the balance is normal, try waking up the second headphone, putting the working earphone in the case, leaving the non-functioning headphone outside. Wait 5 seconds, then pull out both. Sometimes it helps to turn off Bluetooth on your phone, put both earphones in the case, close, open, pull out, and then turn on Bluetooth on your phone.
In rare cases, the problem lies in the smartphone itself. An overflowing cache of Android Bluetooth services can interfere with the proper operation of the stereo pair. Try clearing the cache of the Bluetooth system application through the developer menu or application settings. Also make sure that there are no powerful sources of interference, such as Wi-Fi routers or microwave ovens that operate at 2.4 GHz.
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If neither method helped, and the headphones do not see each other even after reset, there is a high probability of hardware failure of one of the modules or a deep battery discharge.