The situation when wireless headphones stop working in pairs is familiar to many owners of budget acoustics. Often users are faced with the fact that the smartphone sees only one Xiaomi Airdots, and the second either silently or connects as a separate device, a common problem of desynchronization, which is solved by software resetting the settings of Bluetooth modules.
The reason is that the left-right channels are disconnected, and they normally have to communicate directly with each other, transmitting sound from the main module to the auxiliary, and when that link breaks, the gadgets behave independently, which causes discomfort when listening to music or talking, and when they are reconfigured in a factory, they can be forced to be combined into a single stereo system.
In this article, we will discuss the algorithm for all versions of headsets, including Redmi Airdots, Airdots S and newer models of the Basic series. You will learn how to correctly execute Hard Reset, why the indicators flash different colors and how to avoid errors when pairing again. Following the instructions will help return full functionality to your devices without contacting the service center.
⚠️ Warning: Before starting the procedure, make sure that the battery charge in the case and the headphones themselves is at least 50.
The principle of TWS and the reasons for desynchronization
True Wireless Stereo technology involves two independent modules being connected to a single network. In the classic scheme, one headphone (master) receives a signal from a smartphone and relays it to the second (slave). If the master loses communication with the plume, the stereo effect disappears, and the phone can see two devices with the same name or only one of them.
The main cause of failures is a software glitch that occurs when switching between devices or disconnecting the connection, and problems can also cause outdated profiles in the phone’s memory that conflict with the current state of the headset, sometimes due to electromagnetic in the storage area or low battery interference, which makes the Bluetooth module unstable.
- 🔌 Violation of contact charging pins in the case, because of which one of the headphones is not charged and turned off.
- 📱 Bluetooth profile conflict in smartphone operating system after software update.
- 📡 Interference from other wireless devices operating at 2.4 GHz.
- 🔋 Critical battery discharge resulting in resetting of communication module settings.
Understanding these mechanisms helps not only fix the malfunction, but also prevent it from recurring, so it's important to keep the contact pads clean and regularly discharge the devices to zero to calibrate the power controller, which extends battery life and stabilizes the electronics.
Preparation for reconnection of devices
Before you start a proactive reset action, you have to do a series of preparatory activities, a critical step that is often ignored by trying to press buttons right away, which leads to the wrong results, and the first thing you have to do is clear the connection history of the phone completely.
Go to your smartphone’s Bluetooth settings, search for Xiaomi Airdots or Redmi Airdots and select “Forget Device” or “Delete” if there are two identical names on the list (e.g. Airdots and the Redmi Airdots). Airdots_R), Delete both.After that, be sure to turn off Bluetooth on your phone so it doesn't try to automatically reconnect during setup.
Put both earphones in the charger case and make sure they are magnetized. The indicators should light up red to signal the start of charging. If the indicator is not burning, wipe with an alcohol wipe the metal contacts on the earpiece itself and the pin inside the case. Dirt or oxidation can interfere with the supply of power.
☑️ Preparation for discharge
Make sure the case is charged, if the headphones don't light up when you put it in the case, maybe the case is empty. 15-20 Only after all these conditions have been met can you proceed to the direct resetting of the settings.
Step-by-step instructions for Hard Reset (Reset)
There are two main reset methods that depend on the specific model and firmware version of your headphones. The first method is standard for most Airdots, Airdots S and Basic versions. The second method is used if the first one failed. Let's start with the basic algorithm.
Take both earbuds out of the case. They should automatically turn on, and you'll hear a voice message saying "Power on." Now press and hold the touchpads on both headphones simultaneously. Hold for about 5-7 seconds until the lights flash red, and then the device turns off ("Power off"). Don't let go of your fingers right away!
Keep holding the sensors down. 10-15 At some point, the lights should quickly flash white several times, then go out or turn red again, and this is the point of double or triple blinking that indicates a successful reset to the factory settings. Then put the gadgets back in the case.
⚠️ Note: If after holding the buttons, the headphones simply turn off without the characteristic flashing of the reset indicator, repeat the procedure, holding the sensors longer (up to the next step). 20-25 Taimings may vary depending on the batch.
If the standard method didn't work, try the alternative: Take the headphones out of the case, wait for them to turn on, then put them back in the case without turning them off manually, close the lid (if you have one), or just leave it in the case for 10 seconds, then pull it out again. Sometimes the system itself initiates a reconnection when you remove it.
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If the touch control doesn’t respond, try resetting while the headphones are in the case (if the model allows pressing through the case), but most often requires extraction to activate the touch panels.
The process of pairing left and right earphone
Once the reset is successfully completed, the most important step is to create a new pair, and now your headphones are on standby and looking for each other, not your phone, and take both devices out of the case at the same time, and don't touch them for 5-10 seconds so they can find each other.
In a successful scenario, one of the headphones (usually the right one) will start flashing slowly with a white light as it waits for the phone to be connected, while the second one (the left one) will blink quickly a couple of times and either go out or blink very rarely (once every few seconds), which means that the left channel has connected to the right one, and now they are a single unit.
| Status of the indicator | Meaning | Action. |
|---|---|---|
| Fast white flashing | Phone Search Mode (Pairing Mode) | Turn on Bluetooth on your smartphone |
| Slow blinking (once in 3-5 seconds) | The headphone is connected to the master or phone | Wait for the connection. |
| Burning red. | Charging or battery discharge. | Put it on charge. |
| Blinks red and white | Interconnection mode between headphones | Waiting for automatic unification |
Now turn on Bluetooth on your smartphone and start looking for devices. Only one name should appear on the list, like Xiaomi Airdots. If you see two identical names, then the synchronization has not occurred, and the reset procedure must be repeated. Click on the name in the list to connect.
The device can request a pairing confirmation or code. Usually, the code is not required, but if the system asks, type 0000. Once the connection is successful, the voice assistant will say "Connected." Now the music must be played in both ears in stereo mode.
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The main sign of successful synchronization is the appearance of only ONE device in the list of Bluetooth smartphones instead of two identical names.
Diagnostics on indicators and sound signals
Understanding color and voice cues makes diagnosis much easier. Xiaomi Airdots features a simple but informative notification system. English-language voice messages (Power on, Pairing, Connected) help navigate statuses without visual control.
If the right earbud flashes white and the left is silent or flashes blue/red, there is no connection between the two. In some revisions, the left earbud may flash blue, indicating mono-work or channel search. Normally, in standby mode, only the master channel is active.
Notice the blinking speed. Frequent blinking always indicates active search or pairing mode. Rare blinking indicates that the device is connected to something (either a phone or a second earpiece) and is in power saving mode. If the indicator is constantly on, this is usually a sign of charging or a critical error.
- 🔵 Blue (rare flashing) – successfully connected to the phone.
- ⚪ White (frequent flashing) – Bluetooth search mode.
- 🔴 Red color - is charging or battery village.
- 🔴+⚪ (alternately) - reconnection mode between headphones.
⚠️ WARNING: If the lights on both headphones are on or blinking the same and at the same time, this is a sure sign that they do not “see” each other and work as two independent mono-devices.
Solving Typical Connection Problems and Errors
Even after the correct reset, it can be difficult. One of the common problems is that the phone sees the headphones, but the sound comes from only one, in which case check the sound balance in the phone settings (special features). Sometimes the failure occurs on the Android or iOS operating system side, not the headphones themselves.
If the phone can't see the device at all, try refreshing the Bluetooth list. Turn on and off the flight mode on your smartphone. Make sure the headphones aren't connected to another nearby device, such as a tablet or laptop that was paired before.
In cases where nothing works, you can try the "deep discharge" method. Leave the headphones outside the case on until they completely sit down and turn off. Then put them in the case for a full charge (at least 2 hours) and repeat the reset procedure. This helps to reset the errors of the power controller.
What to do if only one headphone is working?
Also worth mentioning is cleaning the speaker grid. Sulfur and dust can physically block the sound, creating the illusion of a break. Carefully clean the mesh with a soft brush. Sometimes users think the earphone is not working, although the problem is purely mechanical.
Prevention and operation rules TWS-headset
To keep the desynchronization problem from returning, you have to follow the rules of operation. Don't store your headphones in a discharged state. Lithium polymer batteries degrade at deep discharge, which leads to unstable voltage and malfunction of the Bluetooth module. Try to put them in the case immediately after use.
Avoid using a headset in areas with high electromagnetic radiation, such as near microwave ovens or powerful Wi-Fi routers. While the Bluetooth standard is resistant to interference, in budget models, antennas are simple, and interference can cause communication gaps between the left and right channels.
Regularly update your firmware if the manufacturer provides this opportunity through the Mi Wear or Xiaomi Earbuds app. New versions of the software often fix connection protocol bugs. Careful and timely charging is the key to the long service of your Xiaomi Airdots.
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The long life of headphones depends on regular charging: do not store them for discharged months, it kills the battery the fastest.