Why Xiaomi wireless headphones are not synchronized with each other

The situation when Xiaomi or Redmi wireless headphones stop working in pairs is one of the most common complaints of users. TWS-Instead of stereo sound, you hear the track in one ear, or the devices don't see each other at all, working as two independent mono gadgets. This is due to a synchronization protocol failure, where the right and left channels lose communication with each other, even if the Bluetooth on the smartphone is active.

Most of the time, the problem isn't physical damage to the speakers, but a software conflict that can be easily solved by a forced reset, and it can happen when you upgrade your phone's operating system, or when your battery is down to zero, or just because of a temporary Bluetooth glitch, and understanding the nature of the problem is the first step to restoring your audio device to full functionality.

In this article, we will discuss in detail the algorithms for the AirDots, Redmi Buds and Mi True Wireless series. You will learn how to correctly perform hard resets, check the charge of the case and eliminate software errors that interfere with normal operation. It is critical to complete all the steps consistently, without missing the steps of cleaning the list of associated devices on the phone.

The main reasons for dissynchronization TWS-headphone

Before you start complex manipulations, you need to understand why the failure occurred. Bluetooth protocol in budget and medium-sized models of headphones sometimes works unstable in the presence of strong radio interference. If you are in the place of a cluster of many Wi-Fi routers or other Bluetooth devices, the signal between the left and right channels can be interrupted, which leads to their rupture.

The second common cause is uneven battery discharge. It often happens that one earphone discharges faster than another due to usage or battery defects. When one channel is turned off at low charge, the second one continues to work, and when they are placed in the case and then removed, they can "forget" each other, starting to look for the last connected device (smartphone) independently.

⚠️ Attention: A common cause of problems is oxidation or contamination of contact areas on the headphones themselves and inside the charging case. If the contacts do not fit tightly, the device may not charge up to 100%, causing a malfunction of the synchronization module.

And there's software conflicts, too. If you've previously connected your headphones to multiple different phones or tablets, you might have accumulated the junk of your pairing profiles in your headset, and your headphones might try to connect to an old, now-unavailable device, ignoring your current partner, and resetting that data often solves the problem.

Diagnosis: How to determine the type of malfunction

To make an effective repair or setup, it is important to properly classify the problem. Not all cases of lack of sound are faulty. If you don't have the Xiaomi Earbuds Basic 2 or the newer Redmi Buds 3 Lite synced, first do a visual and sound test. Pay attention to the indicators: are they flashing simultaneously or at random?

Check each channel separately. Take out the left earpiece, then the right earpiece. If you have sound on both sides, but you don't have stereo when you use it at the same time, then the problem is the interchannel synchronization, and if one channel is silent even when you use it alone, it might be a trivial discharge or the speaker is out of order.

It's also important to check the source of the sound. Try connecting the headphones to another smartphone or laptop. If the second device is working perfectly, then the problem is the Bluetooth settings of your main phone, not the headset.

Hard Reset method for different models

The most effective way to make headphones “friend” again is to completely reset the settings to factory settings, a process that clears the device’s internal memory of all previously created pairs. For AirDots and Redmi Buds, the procedure can vary slightly depending on the generation.

For models without touch buttons (such as AirDots Basic): place both headphones in the case. Make sure they charge (red lights are on). Press and hold the touch zones on both headphones simultaneously for 20-30 seconds without removing them from the case. Indicators should blink several times, signaling a reset.

For models with physical buttons on the case (such as Mi True Wireless Earphones 2): Put the headphones in the charging case and open the lid. Find the function button on the case case case (usually behind or inside between the sockets). Press and hold it for about 10 seconds until the indicator on the case flashes white or orange. This means that the pairing profile is clear.

⚠️ Warning: During the reset procedure, do not remove the headphones from the case and do not close the lid (if the reset is through the case button.

Proper reconnection to the smartphone

Once the reset is done, it is critical to correctly repair. A mistake at this stage often negates all previous efforts. First, you need to completely remove the old device from the phone's memory. Go to Bluetooth settings, find your Xiaomi or Redmi in the list and click "Forget the device" or "Cancel pairing."

Turn off Bluetooth on your smartphone 10-15 Now put your headphones in your case, close the lid, and open it again. Without removing the headphones, wait until they go into search mode (usually the indicators flash quickly.

One name should appear on the list of available devices (e.g. Redmi Buds). 3»), Not two separate ones (Redmi Buds) 3_L» and "Redmi Buds" 3_R»). If you see two devices, then the synchronization between the channels has not occurred, in which case, repeat the reset procedure, paying special attention to simulta button pressing.

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If the phone sees two devices with the same name, try connecting to one of them, then turn off Bluetooth, put the headphones in the case, close it, and try to connect again.

Compatibility table and indicator flashing codes

Understanding the signals your headphones are sending makes it much easier to diagnose. Different Xiaomi models use different color schemes to indicate status. Below is a table that helps decipher the behavior of LEDs.

Note that if the indicator on one headphone behaves differently than on another (for example, one flashes and the other burns smoothly), this is a sure sign that the master channel (usually the right one) can not communicate with the second channel, in which case only a reset helps.

Software solutions and settings Android

Sometimes the problem isn't with the headphones themselves, but with the Android operating system settings. The latest versions of MIUI and HyperOS have features that may conflict with older Bluetooth protocols. Try turning off the "Absolute Volume" option in the developer menu if it's active.

You should also clear the Bluetooth cache. Go to Settings → Apps → Show all apps. From the menu, select Show System Processes. Find the list of Blueooth and Blueooth MIDI Service. For each, click Clear Data and Clear Cache. This won't delete your personal files, but resets your Bluetooth network settings.

Another solution is to reset network settings.This action will delete all stored Wi-Fi passwords and Bluetooth pairings, but often resolves deep system conflicts.The path to function: Settings → Connection and Sharing → Reset Wi-Fi, cellular networks and Bluetooth.

What to do if nothing helps

If all methods are exhausted and Xiaomi headphones are still out of sync, there is a high probability of hardware failure, which can be a failure of the Bluetooth antenna in one of the channels or a deep discharge of the lithium battery, which is no longer taking charge.

Try to leave your headphones in your case for a few hours, even if the indicators don't light up. Sometimes it takes a long time to "pump" a deeply discharged battery. If that doesn't work, then you just have to go to the service center or buy a new device, because you have to replace the battery in the battery. TWS-Headphones are often economically inappropriate.

⚠️ Warning: Do not attempt to open the headphone case yourself if they are under warranty.Falling seals and autopsy marks will result in the loss of the right to free repairs.

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90% of desynchronization problems are solved by a full reset and re-pairing with the removal of an old profile from the memory of the phone.