Modern wireless headphones from Xiaomi and sub-brands like Redmi and Haylou are famous for their excellent sound and affordable price. However, owners often face an unpleasant problem when the left and right earphones stop syncing with each other, in which case one channel is silent, or the sound is played on only one device, which completely makes it useless to use a stereo headset.
Most often, the reason lies in the failure of the headset software or desynchronization of Bluetooth profiles. Re-pairing the headphones together is not a complex process that requires deep technical knowledge, but a standard procedure for resetting settings. Proper execution of the sequence of actions allows you to restore the factory logic of the device and return full sound.
Before you start to act, you need to make sure that the problem is in the desynchronization, not in the discharged battery of one of the modules. If the indicators are burning, but there is no sound or it comes only from one side, then it is time to conduct a procedure for simultaneous resetting of both headphones to re-unite them into a single network.
Diagnostics of the problem and preparation for resetting
The first step before any interference with electronics is to thoroughly diagnose the current state. Often users try to connect devices without checking the basic parameters, which leads to false conclusions about the malfunction. Make sure that both earphones have sufficient charge, as at low power levels, the Bluetooth module can work unstable.
It's important to understand the difference between connecting to a phone and pairing the headphones themselves. When you see two identical names on a Bluetooth list, for example, AirDots_R and AirDots_L, It means they've lost touch with each other, and in normal operation, the smartphone should only see one device, usually with a Master prefix or just the model name.
For successful communication restoration, it is necessary to perform preliminary preparation:
- 📱 Completely remove old headphone profiles from your smartphone memory via Bluetooth menu.
- 🔋 Charge the case and the headphones to 100% to prevent disconnection during the procedure.
- 📶 Turn off Bluetooth on all nearby devices that may have previously connected to the headset.
- 🧹 Wipe the charging contacts on the headphones, as oxidation can prevent full charge.
⚠️ Warning: If one of the headphones flashes red or doesn’t light up at all, the problem may be physical damage to the battery or contacts, not software failure.
Universal method of resetting through touch panels
Most modern models, such as the Mi True Wireless Earbuds Basic 2, Redmi Buds 3 or AirDots 3, use touch control to perform the reset command, which is the most common method and does not require physical buttons on the case body, the essence of the method is long-term retention of touch zones.
The process is as follows: remove both earbuds from the charging case. Make sure they are off (if the lights are on, press the sensors for 5-7 seconds before turning off). Now simultaneously press and hold the touchpads on both headphones. Retention time can vary from 5 to 20 seconds depending on the model.
The critical point is to watch the display, and usually the indicators start flashing red several times, and then they can flash white or red twice, signaling a successful reset, and then the headphones must automatically go into the mode of finding each other to pair again.
☑️ Sensory reset algorithm
There are nuances for different versions of firmware. Some models require 5 touches in a row, others require triple presses. If standard long-term retention didn't work, refer to the specific model's instructions, as the logic of the touch controllers may differ.
Matching models with a physical button on the case
More advanced models such as the Mi True Wireless Earphones 2, 2S, 2 Pro and FlipBuds feature a functional button on the case of the charging case. This greatly simplifies the reset and pairing process, as it does not require manipulation of the headphones themselves, which can be uncomfortable for prolonged clamping.
To perform the reset, place both headphones inside the charging case and leave the lid open. Find a function button that is usually located on the back wall or inside between the headphone compartments. Press and hold this button for 10 seconds.
The indicator on the front panel of the case should start flashing white, which indicates the entry into pairing mode, at which point the internal logic of the device clears the memory of previous connections and forcibly links the left and right modules together before going on the air to search for a smartphone.
| Model headphones | Type of management | Time to reset | Indication of success |
|---|---|---|---|
| AirDots / Redmi Buds | Sensor (5 sec) | 15-20 seconds | Blink 3 times |
| Mi TW 2 / 2S | The button on the case | 10 seconds. | White flashing |
| FlipBuds Pro | The button on the case | 10 seconds. | Orange light |
| Haylou GT1 | Sensor (4 times) | 5 seconds after | Red flashing |
What to do if the button on the case does not work?
The Redmi AirDots and Mi True Wireless series
Redmi AirDots (including S, 2, 3) is one of the most popular and, accordingly, problematic in terms of synchronization. The peculiarity of these models is that they do not have a button on the case, and the sensors on the headphones themselves can be very sensitive or, conversely, require strong pressing.
There's a secret method for some versions of AirDots that helps if the standard reset doesn't work, take the headphones out of the case, turn them off, and then press the sensor of each headphone 5 times quickly, and after the fifth press, you need to pinch the sensors and hold for about 5 seconds until the indication appears.
After the manipulation, the headphones must go into fast blinking mode, which means finding a pair, at which point you don't have to try to connect them to the phone. Wait about 10-15 seconds until they find each other themselves, usually one of them (right) stops blinking or changes frequency, becoming a master device.
⚠️ Warning: When resetting AirDots, it’s important not to bring the headphones too close together in the first seconds, let them initiate a protocol search first TWS.
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For models without an indication (for example, early versions of AirDots), a characteristic audible signal or a change in color of the indicator from red to white before switching to standby mode is a sign of a successful reset.
Eliminating sound dissynchronization and delays
Even after successful pairing, users may experience audio desynchronization, with the left and right earphones running at different latency, often when watching videos or playing games, and the problem may be in the Bluetooth codec or interference on the air.
Try changing the developer settings on Android if you have that access. Switching the codec from SBC to AAC or aptX (if supported by headphones) can solve the problem of delays. It's also worth trying to turn off absolute volume in Bluetooth settings.
In some cases, a full discharge cycle helps: leave the headphones on outside the case until the battery is completely depleted until they turn off themselves. Then charge them to 100% in a closed case, which allows the power controller to calibrate the charge levels, which positively affects the stability of the communication module.
If the problem persists in just one particular application, it may not be the headphones, but the app itself. Check the system's audio settings by turning off any surround sound effects or equalizers that may conflict with the headset drivers.
Frequent errors when trying to connect
Many users make common mistakes that reduce all efforts to zero, the most common being trying to connect their headphones to their phone before they can connect to each other, and the smartphone sees two devices and connects to only one, ignoring the second.
Another mistake is untimely retrieval, and if you take your headphones out of the case, not at the same time, but with a delay of a few seconds, they may not sync and start looking for the phone independently, always try to remove them quickly and almost simultaneously.
Remember, forgetting the "forgotten" connections: If you have an old profile with the same name in your phone's memory, but with different pairing parameters, the new connector may not be correctly connected. Always "Forget the device" before you try to mate again.
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The main key to success is a strict sequence: a complete reset of headphones -> waiting for their mutual connection -> only then search the phone.