Xiaomi True Wireless headphones are some of the brand's most popular gadgets, but even they sometimes fail users. One of the common problems is that one headphone stops working, doesn't connect to the phone, or only makes sound in mono mode, because it's lost sync between the left and right modules, and fortunately, you can fix this yourself without going to the service center.
In this article, you will find step-by-step instructions for all models, from the budget Redmi AirDots to the flagship Xiaomi Buds 4 Pro. We will analyze why the headphones βdisconnectβ, how to return them to the factory settings and what to do if the standard reset does not help. And also a unique way of synchronizing through the Mi Home app, which is not written in the official manuals.
Why Xiaomi headphones lose synchronization?
The disconnection between the left and right earphones is a common problem that occurs for several reasons:
- π Battery discharge of one of the modules up to 0%. If the earphone is completely discharged, it can "forget" the password connection to the second.
- π± Incorrect disconnection from the smartphone (for example, via the Bluetooth menu, and not a button on the case).
- π Firmware failure after automatic update (relevant for models with support) MIUI Pop).
- π§ Mechanical damage to contacts in the case or the headphones themselves (infection of moisture, drop).
- π² Conflict with other devices: If the headphones have previously connected to another phone or tablet, they may βhangβ in standby mode of the connection.
In 80% of cases, the problem is solved by a software reset, but if the headphones are physically damaged (for example, after falling into water), you may need repair.
Preparing for synchronization: what to do before resetting
Before you reset your settings, follow a few mandatory steps to avoid additional problems:
- Charge the case and headphones to 100%. Make sure the indicators on the case are green (or white depending on the model). If the battery is dead, the sync may not work.
- Remove the headphones from the list of Bluetooth devices on all the gadgets they've connected to. Way: Settings β Bluetooth β Headphone Name β Forget the device.
- Check the case for debris. Often the headphone contacts get contaminated with dust or villi, which interferes with charging and synchronization. Wipe them with a soft napkin dipped in alcohol.
If one of the headphones is not charging or the case does not respond to the press of a button, the problem may be a faulty battery, in which case synchronization will not help - you need to replace the battery or the case itself.
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If Xiaomi Buds 3 Pro headphones or newer, update your firmware through the Mi Home app before reset. Newer versions of the software often fix plug-in bugs.
Method 1: Standard reset via a button on the case (for most models)
This method works for Redmi AirDots (all generations), Mi True Wireless Earbuds 2/2S, Xiaomi Buds 3/4 and other models with a physical button on the case.
- Put both headphones in the case and close the lid.
- Open the lid and hold the button on the case for 10-15 seconds until the indicator flashes red and white (or red and blue β depending on the model).
- Release the button. The headphones automatically sync and go into pairing mode (the indicator will flash white).
- Connect them to your phone via Bluetooth.
If one earphone still doesn't work after reset, try repeating the procedure 2-3 times, sometimes it takes several attempts to make the modules "see" each other.
Both earphones flash white/blue after reset |
The Bluetooth list shows one device (not two separate devices) |
The sound is played in stereo (check the balance in the sound settings)|
Headphones automatically turn off when placed in a case-->
Method 2: Reset via touch panels on headphones (for models without a button on the case)
Some models, like the Xiaomi Buds 4 Pro or Redmi Buds 5, don't have a physical button on the case, but instead, the reset is done through the touchpads on the headphones themselves.
- Get both earphones out of the case.
- Press and hold the touchpads on both headphones simultaneously for 10 seconds.
- Wait until the indicators start flashing red, then let go.
- Put the headphones back in the case and close the lid for 5 seconds.
- Pull them out again - they should synchronize and go into pairing mode.
If the touchpads donβt respond, check to see if theyβre locked in the Mi Home app settings. Also make sure you click on the touch zone (usually marked with a dot or Xiaomi logo).
What to do if the sensor is not working?
Method 3: Sync through the Mi Home app (hidden method)
Few people know, but the Mi Home app has a hidden forced synchronization feature that helps even when the standard reset doesnβt work, which is suitable for models with MIUI Pop support (for example, Xiaomi Buds 3 Pro, Redmi Buds 4 and later).
Instructions:
- Install the Mi Home app (links: Android/IOS).
- Connect your headphones to your phone via Bluetooth (even if they donβt work properly).
- Open Mi Home, go to Profile β My Devices β Headphones.
- Slip on the three points in the upper right corner and select Device Settings β Reset.
- Confirm action. The headphones will reboot and sync automatically.
If your headphones arenβt on the list, upgrade to the latest version or try connecting through another Xiaomi account.
| Model headphones | Does it support resetting through Mi Home? | Alternative method |
|---|---|---|
| Redmi AirDots (1β3) | β No. | The button on the case |
| Mi True Wireless Earbuds 2/2S | β Yes (after the firmware update) | The button on the case |
| Xiaomi Buds 3/3T Pro | β Yes. | Touch panels |
| Xiaomi Buds 4 Pro | β Yes. | Touch panels |
| Redmi Buds 5 | β Yes. | Touch panels |
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Resetting through the Mi Home is the most reliable way for new models, not only synchronizes the headphones, but also updates their firmware to the latest version, which prevents repeated failures.
What if none of the methods worked?
If the headphones are still out of sync after all the manipulations, the problem could be hardware.
- π Contacts in the case. Check the metal connectors for oxidation or contamination. Clean them with a stripe or alcohol.
- π Headphone battery: If one of the modules runs out in 5-10 minutes, its battery is out of order.
- π‘ Bluetooth module. Try connecting your headphones to another phone or PC. If the problem recurs, the earphone itself malfunctions.
- π οΈ For firmware models (like Buds 3 Pro), try reflashing them via Mi Home or Xiaomi Earbuds App.
If you are sure that the problem is in the hardware, contact an authorized service center Xiaomi. headphone repair is cheaper than buying new ones, especially for mid-range and premium models.
β οΈ Warning: Don't try to disassemble the headphones yourself! In most Xiaomi models, the body is glued together, and when you open it, you risk damaging the microphone or speaker.
How can we prevent synchronization loss in the future?
To prevent the headphones from βdisconnectingβ again, follow these rules:
- π Charge the case regularly. Do not allow full discharge of headphones (below 10%).
- π± Turn off the headphones correctly β through the button on the case or Bluetooth menu, but not pulling them out of your ears while working.
- π Update your firmware via Mi Home or Xiaomi Earbuds App (for supported models).
- π§Ή Clean the contacts of the case and headphones once a month with an alcohol napkin.
- π« Donβt connect your headphones to multiple devices at the same time, which can cause Bluetooth profile conflicts.
If you use Windows or Mac headphones, always press Safe Device Removal in the system tray before you turn off. This will prevent crashes on the next connection.
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For models with LDAC support (such as Xiaomi Buds 4 Pro), disable this codec in Bluetooth settings if you notice a hangover. It consumes more power and can cause synchronization failures.