Solving the problem of desynchronization of headphones Xiaomi

The situation when wireless headphones stop working in pairs is one of the most common complaints of owners. TWS-Xiaomi headsets, which users often experience one headphone connecting to a smartphone while the other is silent or making a quiet, intermittent sound, because the left and right channels lose touch with each other, entering independent standby mode.

Synchronization restoration doesn't usually require a service center visit, because the problem is software failure or battery drain. You have to do a series of sequential steps to force the devices to pair, and in most cases, it returns the gadgets to full functionality.

Redmi AirDots, Mi True Wireless Earbuds and newer Xiaomi Buds series models use similar algorithms, but may differ in sequence when resetting. Understanding how Bluetooth protocol works in these devices will help you find the cause of the malfunction faster.

The main reasons for dissynchronization of channels

The first step to solving the problem is to understand what caused the crash, and most often the culprit is the Bluetooth module of the smartphone, which tries to connect to both ears as independent devices, this happens after updating the phone's operating system or changing the playback source.

Another common cause is uneven battery discharge: if one earphone is completely discharged and turned off, and the second one continues to work, they can “forget” each other when they charge, and the controller retains the old connection status, which blocks the creation of a new pair.

⚠️ Warning: If one of the headphones was in the water or was hit hard, the problem may be hardware, in which case the software reset will not help restore the speaker.

If there are many other Bluetooth devices or powerful Wi-Fi routers in the immediate vicinity, the communication protocol may be broken. Xiaomi uses standard 2.4 GHz frequencies, which are often overloaded in apartment buildings.

Preparation for reconnection

Before you start complex button manipulations, you need to provide the perfect conditions for reconnecting. Make sure that both earbuds are at least 50% charged. Low charge can cause the device to turn off during pairing and the procedure has to start again.

It is important to completely clear the list of conjugate devices in your smartphone settings. Find in the Bluetooth list all the entries related to your headphones (for example, Redmi). AirDots_R redmi AirDots_L), and select "Forget device" or "Delete." This is a critical step.

After deleting the profiles, turn off Bluetooth on your phone. Put both earbuds in the charge case and close the lid for 10-15 seconds. This will allow the devices to go into deep sleep mode and reset temporary buffer errors.

Universal method of resetting (Hard Reset)

The most effective way to get the headphones to "see" each other again is to completely reset to factory settings. For most Xiaomi and Redmi models, the procedure looks the same, but requires accuracy in timing. Take both headphones out of the case.

Press and hold the touchpads on both headphones simultaneously. Hold for about 5-7 seconds until the lights turn red. Then release your fingers and press the sensors again, holding for 15-20 seconds. The indicators should flash red twice.

After double-blinking, put the gadgets back in the case. Wait a few seconds, then retrieve them. Now they should go into fast pairing mode. Turn on Bluetooth on your phone and find the device on the list of available devices.

💡

The main sign of success is that only one device appears on the Bluetooth list, not two separate devices (Left and Right).

Redmi AirDots and Mi True Wireless

The popular AirDots series has its own nuances: The first version of these headphones often has a situation where the right headphone (Master) is working and the left headphone (Slave) is not connected, which is due to the fact that the phone only connects to the master device, which then broadcasts the sound to the second.

There's a special algorithm for forced pairing of these models: Remove both earbuds from the case. Quickly press 5 times on the sensors of both devices at the same time. If the procedure is done correctly, the indicators will light up in yellow, which means entering flashing or deep reset mode.

Then put them in the case and close the lid. In 10 seconds, open the case — the headphones should automatically connect to each other before connecting to the phone, at which point the indicator of one of them will slowly flash white, and the second will burn or not burn, waiting to connect to the smartphone.

Problems with Xiaomi Buds 3 and newer models

More modern models, such as the Xiaomi Buds 3 or 4 Pro, often require the use of Xiaomi's proprietary Earbuds app (formerly Mi Earbuds) to work properly.If standard button reset doesn't help, try resetting through the app.

Connect your headphones to your phone, open the app, and find the "Reset" item in the device menu. This program action is often more effective than the mechanical one, because it overwrites the firmware configuration files. You can also update firmware in the app, which eliminates known bugs.

The new models use dual-connection protocol, making them more stable but also more difficult to diagnose. If one channel is quieter than the other or interrupts, check the Mono-Audio settings in the Special Features section of your Android smartphone.

Diagnostics of hardware faults

If none of the software methods worked, maybe the problem is the hardware. Carefully look at the contact pads on the headphones themselves and inside the case, oxidizing or contaminating the contacts prevents charging one of the channels, which causes it to turn off constantly.

Check the speakers separately. Connect the phone to one earphone, listen to the sound, then force the second (if the model allows you to see them as separate devices in developer mode or through third-party utilities), if one of them hears crackling or wheezing even without music, this is a sign of damage to the membrane.

⚠️ Warning: Do not try to disassemble headphones yourself if they are guaranteed.Violation of seals on the case will lead to loss of the right to free repairs.

It’s also worth checking out on another smartphone. If the headphones work perfectly on another phone (especially not Xiaomi), the problem may be in the conflict of Bluetooth or MIUI versions.

Frequent Questions and Answers (FAQ)

💡

If nothing works, try connecting your headphones to your computer via a Bluetooth adapter, and sometimes the PC sees the devices differently and allows you to successfully perform the initial pairing, which then will be preserved for the phone.