Xiaomi Airdots headphones unsynchronization: a complete guide to elimination

The situation when wireless TWS-Headphones stop working in pairs, is one of the most common problems owners of budget acoustics: instead of volumetric stereo sound, the user hears music from only one device, or both devices work independently, controlling different tracks. This phenomenon is technically called desynchronization, and it often occurs after a battery drain, a smartphone operating system update, or an accidental Bluetooth reset.

You don't have to panic, because 90 percent of the time, it's software-based, it's easy to fix without going to the service center, and the Bluetooth modules inside the case and the ears themselves just lose touch with each other and start acting like independent devices, and to get them back on track, you have to force the pairing process to start again, ignoring the old entries in the phone's memory.

Recovery effectiveness depends on the correct execution of the sequence of actions. Any deviation from the algorithm, for example, premature turning on Bluetooth on the phone, can again bring down the settings. In this article, we will discuss all the nuances of how to make Xiaomi Airdots, Redmi Airdots and their modifications work again in a single mode.

Reasons for the desynchronization of wireless headphones

Understanding the root of the problem helps prevent it from recurring in the future. The main cause of desynchronization is often a complete discharge of batteries. When the charge drops below a critical level, the power controller can shut down, which leads to a reset of temporary data about the connection between the left and right channel.

Another common factor is interference on the air. If you're in a place with a lot of active Wi-Fi networks or other Bluetooth devices, the signal may be interrupted. The connection protocol in budget models is not always sufficiently resistant to noise, which causes devices to lose each other.

⚠️ Attention: Frequent use of the “Forget device” function on a smartphone without subsequent resetting of the headphones themselves can lead to an accumulation of errors in the cache of the Bluetooth module of the headset.

Also worth mentioning are software conflicts: Updating the Android or iOS operating system sometimes changes the algorithms of working with sound, which can temporarily disrupt the stability of the connection with third-party accessories. In rare cases, the culprit is the oxidation of contacts in the charging case, which causes one of the devices to not charge and turn off, disrupting the pair’s balance.

Preparation for reconnection

Before you start actively reconnecting, you have to do a number of preparatory procedures, a critical step that is often ignored and often leads to failure, and the first step is to completely clear your smartphone memory of old connection profiles.

Go to your phone's Bluetooth settings. Find Xiaomi Airdots or Redmi Airdots available devices. Click on the gear icon or the letter "i" next to the name and select the option "Disable" or "Forget the device." If there are several entries with a similar name on the list (for example, Airdots_L and Airdots_R), remove them all.

After deleting the profiles, be sure to turn off Bluetooth on the smartphone completely, which will prevent the phone from automatically trying to connect to the headphones while setting them up, and also make sure that the headphones and case are charged at least 50% so that the process does not interrupt in the middle.

Complete resetting of headphones (Hard Reset)

The most effective way to eliminate the out-of-synchronization is to perform a full Hard Reset, which causes the headphones to forget all previous connections and return to factory settings. The Xiaomi Airdots 1, 2, S and the base versions of Redmi are the same algorithm of actions.

Remove both headphones from the charging case. Make sure they're off (indicators don't burn). If they're turned on automatically when you retrieve, press and hold the touchpads on both devices for 5-7 seconds until the lights go out. Now that the headphones are off, press and hold the touchpads simultaneously on both devices.

Keep your fingers on the sensors. First, the red light will light up, then it will go out, and after a while (about 15-20 seconds from the start of pressing), the indicators should flash red several times. This is a signal that the reset has been successful. Release the sensors.

It's important to keep your fingers on too early. Many users release their sensors immediately after they turn on their headphones without waiting for the reset to happen. It takes longer than just turning on, so be patient and wait for the characteristic blink.

The correct procedure for pairing the left and right channel

After a successful reset, the headphones go into pair-finding mode, and now your task is to connect them to each other, not to your smartphone, a key point that is often overlooked: If you turn on Bluetooth on your phone right away, it can only connect to one headphone (usually the right one), and the stereo mode will not recover.

Put both earbuds next to each other on a flat surface. Don't touch them. The indicators should flash white often. That means they're looking for each other. In 5-10 seconds, the blinking should be less frequent, and one of the indicators (usually on the right earbud) can go out or light up dim, while the other continues to blink, which means that the channel synchronization has been successful.

Now you can turn on Bluetooth on your smartphone and start looking for devices. Only one device called Xiaomi Airdots or Redmi Airdots should appear on the list. If you see two devices (L and R), then the headphones have not paired with each other, and you need to repeat the reset procedure.

Features of setting up models Xiaomi Airdots 3 and Pro

Newer models such as the Airdots 3, Airdots 3 Pro and Redmi Buds 3/4 have a slightly different reset algorithm due to active noise cancellation and more sophisticated electronics. These models often use physical buttons on the case case body, rather than just touch control.

To reset these models, place both headphones in the case and leave the lid open. Find the function button on the case case case (usually round and located between LED lights or on the side). Press and hold this button for 10 seconds. The indicator on the front of the case should light up in orange or white, signaling a reset.

⚠️ Note: For models with a button on the case (Airdots) 3/Pro) Keep headphones inside the case during the reset is mandatory, unlike older models where they need to be taken out.

Once reset, the pairing algorithm is similar: close the lid, open it again (without removing the headphones), and press the button on the case once to go into pairing mode. Only then look for the device in the phone. Using the Xiaomi Earbuds or Mi Home app can greatly simplify the process and allow you to check the firmware version.

Diagnostics of charging and contact problems

Sometimes, dissynchronization is a secondary symptom, and the root cause is poor contact, and if one of the headphones doesn't charge, it can turn off at the most inopportune moment, breaking the connection with the "brother," visually, you can see that the indicator on the headphone in the case does not light up red.

Take a cotton swab lightly soaked in alcohol, and gently wipe the metal contacts on the headphones themselves and the pins inside the case, and during operation, it accumulates earwax and oxides that prevent current from passing, and the purity of the contacts is the key to stable operation.

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Use a dry toothbrush to clean deep grooves in the case where the cotton swab is missing, but do so carefully so as not to damage the spring contacts.

Also check if the case cover fits tightly. If the latch mechanism is loose, the headphones inside the case can move away from the contacts and discharge in the bag. In such cases, it is recommended to use rubber rings or locks to tighten the cover.

Frequently Asked Questions (FAQ)

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The main rule of success is to strictly follow the sequence: a complete reset -> waiting for the headphones to connect to each other -> and only then connect to the phone.