Xiaomi’s current TWS (True Wireless Stereo) wireless headsets have gained popularity due to their excellent price-performance ratio, but users often find themselves in a situation where the device loses sync with each other. Instead of stereo, you hear audio in only one ear, or the phone sees two identical devices on the Bluetooth list. This is not a breakdown, but the standard behavior of the Bluetooth protocol, requiring manual reconfiguration of communication channels.
To restore full operation, a series of sequential actions must be performed that will cause the left and right modules to "find" each other before they connect to a smartphone. The algorithm of actions may vary slightly depending on the model, whether it is Redmi Buds, AirDots or more premium Mi True Wireless, but the basic principles remain the same throughout the ecosystem.
In this guide, we will take a look at all the steps of reconnecting, from resetting completely to fine calibrating through a proprietary app, and learn how to avoid typical errors and why sometimes ignoring one simple step leads to a repeat of the problem in a week.
⚠️ Warning: Before starting the procedure, make sure that the charge of both headphones and the charging case is at least 50%. interruption of the synchronization process due to battery discharge may cause a software failure of the communication module.
Diagnosis of the problem and causes of desynchronization
Before you start to take action, you need to understand the nature of the failure, in order to minimize the risks in the future. Most often, when only one earpiece is running, the problem is that the ears themselves are not synchronized, they stop understanding each other as a single stereo pair and start working in mono mode or try to connect to the phone as two different devices.
The main triggers of this situation can be:
- 📉 A sharp decrease in the battery charge of one of the modules during operation, which led to its automatic shutdown and loss of communication with the partner.
- 📡 Signal interference in places where a large number of Bluetooth devices are clustered (malls, public transport).
- 📱 Update to the smartphone operating system that changed connection priorities or security protocols.
Sometimes the user accidentally activates the mono-audio mode in the settings of the phone or the Xiaomi Earbuds application itself. Also, you should not exclude software bugs that occur when switching between different sound sources. Understanding the reason helps to choose the most effective solution method.
Preparation for reconnection: complete reset
The most effective way to get the gadgets to work in pairs again is to perform a full reset to the factory settings (Hard Reset), a procedure that clears the devices' internal memory of old pairing profiles and forces them to look for each other again from scratch, ignoring this step often leads to the problem returning.
The reset process for most Xiaomi and Redmi models is as follows:
- 🗑️ Place both headphones in the charging case and leave the lid open.
- ⏱️ Find the function button on the case (usually located between the indicators or on the back panel) and hold it near the case. 10-15 seconds.
- 💡 Watch for the indicator: it should flash red several times or change the pattern of blinking, which signals a successful reset.
For models without a physical button on the case (for example, older versions of Redmi AirDots), the procedure may be different: you need to remove the devices, quickly press 5 times on the touch areas of both headphones at the same time until they blink.
☑️ Checklist before reset
You’ll have to reset your in-app preferences, but that’s a necessary sacrifice to restore a stable connection.
The process of pairing: step-by-step instructions
Once the reset is successfully done, the critical step is to pair correctly, and that's where most of the mistakes are made, and the rule is that the headphones must first connect to each other, and then to the phone.
Follow the following steps in strict sequence:
- Make sure that Bluetooth on your smartphone is on, but the list of available devices is not open yet.
- Get both earphones out of the case at the same time.
- Wait 5-10 seconds until the lights start flashing in unison (usually white) which means that the stereo is formed.
- Only now open the Bluetooth menu on your phone and find the name of your model (e.g. Redmi AirDots).
- Click on the name to connect.
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If the lights flash different colors or different frequencies, the headphones are not synchronized, so put them back in the case and repeat the extraction procedure at the same time.
In some cases, the phone may suggest connecting the device as a headset or an audio. Always choose Audio mode or just a standard connection to activate the full functionality of stereo and microphones.
⚠️ Warning: Do not press the connection button on your phone until the headphone indicators stop flashing quickly and go into rare blinking mode or go out.Premature connection can preserve the error.
Use of the Xiaomi Earbuds / Mi Wear app
For owners of Xiaomi smartphones and Android devices, it is highly recommended to use the specialized application Xiaomi Earbuds (or Mi Wear for global versions), which allows you not only to check the charge of each module separately, but also to force the firmware update, which often solves hidden software conflicts.
The functionality of the annex shall include:
- 🎚️ Accurate touch control settings (change tracks, activation of voice assistant).
- 🔊 Set up the equalizer and noise reduction modes (ANC).
- 🔍 Search for lost headphones and check firmware version.
If you see one of the headphones showing 0% charge or not showing at all after you connect, this is a sure sign that the sync has not gone through, in which case the application may suggest an update to the software that will automatically overwrite the communication modules.
What to do if the app does not see the headphones?
Updating the firmware is the only way to fix hardware bugs related to power consumption and connection stability that were detected by the manufacturer after the device went on sale.
Compatibility table and indicator codes
Different Xiaomi headsets use different color schemes to indicate status, and understanding these signals helps to diagnose the problem faster without having to connect to a phone.
| Model | Interconnection indicator | Error indicator | Resetting method |
|---|---|---|---|
| Redmi AirDots | White flashing | Red flashing | 5 touches of the sensor |
| Mi True Wireless 2 | White permanent | Orange | Case button (15 seconds) |
| Xiaomi Buds 3 | Green breath | Red constant | Case button (10 seconds) |
| Redmi Buds 3 Pro | White flashing | Orange blinking | Case button (10 seconds) |
Note that colors can vary depending on the device's revision.If you see a continuous red glow, it almost always indicates a critical discharge or hardware malfunction, not a software failure.
Active noise cancellation (ANC) models have an additional indicator that can flash when switching modes, and don't confuse this signal with pairing error.
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Knowing your model’s color display saves time for diagnosis, as the phone doesn’t always accurately report the type of connection error.
Solving problems with one working headphone
When the sound is still only in one ear after all the manipulations, it requires more in-depth analysis, often because of the smartphone's sound balance settings or the touchpad's sticking.
Check the following options in the phone menu:
Settings → Sound and vibration → L/R balanceMake sure the balance slider is strictly centered. Shifting towards one channel is a common problem after Android updates, which is solved by returning the slider to its original position.
It's also worth cleaning the contact pads on the headphones and inside the case. Oxidation or ingress of earwax on the contacts can prevent one of the modules from charging, which causes it to turn off immediately after being removed from the case, creating the illusion of desynchronization. Use a dry cotton swab for careful cleaning.