The situation when one headphone in a pair of Xiaomi Airdots 2 suddenly stops working, is familiar to many owners of budget acoustics: the user extracts both devices from the case, but the sound is heard from only one, or the second does not show signs of life at all. This is a classic desynchronization problem that owners face. TWS-headsets, and most often it is solved by software methods without going to the service center.
The main reason is that the right and left channels lose communication with each other. Instead of working in pairs, the headphones begin to perceive the smartphone as two separate devices or try to connect to it separately. In 85% of cases, the problem is solved by completely resetting the headset to factory parameters. However, before you start complex manipulations, it is necessary to exclude trivial physical factors such as discharge or pollution.
In this article, we will discuss a step-by-step algorithm that will help to revive your headset, we will look at both software resets and physical methods of cleaning contacts, and also touch on rare cases of hardware malfunctions that require the intervention of specialists.
Diagnostics and primary charge check
Before you panic and look for flashing instructions, you need to make sure that basic things are done. Often the user thinks that the earphone broke when in fact it just discharged or did not charge due to oxidation of contacts. Visually determining the charge level in Mi True Wireless Earbuds Basic 2 is difficult, because the display here is minimalistic.
Put both earbuds in the charger case and connect it to the network for at least 30-40 minutes. Make sure the indicators on the headphones themselves (if visible) or on the case flash, signaling the charging process. If one of the headphones does not respond to the installation in the case, it may be a problem in the contamination.
- 🔌 Check whether the charging contacts fit tightly on the case and the headphone itself.
- 🧹 Wipe the contacts with a dry lilaless napkin or cotton swab soaked in alcohol.
- 🔋 Make sure the charging case itself has enough charge to power the accessories.
Sometimes the contact is disrupted by earwax or dust entering the recess of the case. Carefully clean the seats. If after a long charge one earphone still does not light up the indicator when extracted, proceed to the program reset.
⚠️ Note: Do not use metal objects (needles, pins) to clean contacts inside the case to avoid short circuits or damage to current conducting tracks.
Full Reset (Hard Reset) Method
The most effective way to get Xiaomi Airdots 2 to work in pairs again is to perform a hard reset, which causes the headphones to forget previous pairings and re-find each other, and it is important to follow all the steps consistently and take your time.
First, remove the device from the Bluetooth list on your smartphone. Find the Mi True Wireless EBs Basic2 (or similar) entry in your Bluetooth settings and click "Forget the device" or "Disable." Then turn off the Bluetooth on your phone completely.
Now, follow the following steps to reset:
- Remove both earphones from the case.
- Press and hold the touchpads on both headphones simultaneously for 20 seconds.
- The indicators should flash red several times, after which the headphones will turn off.
- Put them back in the case for 10 seconds.
- Get both earbuds out at the same time. They should start flashing white, waiting for pairing.
If the procedure is done correctly, the indicators should blink slowly, which means pairing mode, so you can now turn on Bluetooth on your phone and pair again.
☑️ Reset algorithm Xiaomi Airdots 2
Connection problems and desynchronization
Sometimes the headphones work, but the sound only goes to one channel, or they connect to the phone as two different devices (for example, Mi True Wireless EBs Basic2 L and R). This indicates that the master earpiece (usually the right one) does not transmit the signal to the dependent (left), in which case forced re-synchronization helps.
Try leaving the headphones outside the case next to each other for 1-2 minutes. If they do not connect automatically (the indicator of one of them stopped blinking), repeat the reset procedure described above, but this time press the sensors not for 20, but for 5-7 seconds to just turn them off, and then turn them on again.
It is also worth checking the Bluetooth settings on your smartphone, and in some cases, cleaning the cache of the Bluetooth Android service helps:
- 📱 Go to Settings. → Annexes.
- 🔍 Enable the display of system processes (via a three-point menu).
- 🗑️ Find “Bluetooth”, click “Storage” and select “Clear Cache».
What if the headphones are seen as two devices?
Physical damage and hardware malfunctions
If software methods don't work, there's a high chance of physical damage. Xiaomi Airdots 2 is a compact device that is sensitive to impact and moisture. Even if the body is intact, the speaker's contact could have left or the battery could have damaged.
A common cause of left earphone failure is moisture (sweat or rain) or sulfur, which blocks the speaker's mesh and presses on the membrane. Visually inspect the speaker mesh: if you see a dense plaque, gently clean it with a soft brush.
The main signs of hardware breakdown:
| Symptoms. | Probable cause | Decision |
|---|---|---|
| The headphone is not charged (no indicator) | Deep discharge or battery death | Leave in the case for 2-3 hours |
| Quiet sound or wheezing | Grid pollution or dynamic head | Cleaning or replacing the speaker |
| It doesn't turn on at all. | Breakage of the plume or controller | Repairs at the service |
⚠️ Note: Opening the headphones Xiaomi Airdots 2 is extremely difficult due to the lack of screws and the use of glue. Trying to open the case yourself in 90% of cases leads to irreversible damage to the plastic case.
Third-party device impact and interference
Sometimes the problem lies not in the headphones themselves, but in the source of the signal. Smartphones with powerful Wi-Fi antennas or microwave ovens running nearby can interfere in the 2.4 GHz band, which leads to a break in the connection between the headphones.
Try connecting the headset to another device, a tablet, a laptop, or another family member's phone, and if both headphones are working properly on the other device, it's a problem in the Bluetooth module of your main smartphone, in which case, reset the network settings on the phone.
Also worth considering is distance. Xiaomi Airdots 2 uses Bluetooth 5.0, but the radius of confident communication is limited.If the phone is in the deep pocket of a winter jacket, the signal may be lost and the second earphone will turn off to save energy.
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To check the quality of communication, leave the phone on the table and move away with your headphones for 5-7 meters. If there is no out-of-synchronization, then the modules are good, and the problem was interference or distance.
When repairs or replacements are needed
If neither the reset, nor the cleaning, nor the connection to other devices did not work, most likely one of the internal components failed. TWS-Battery life is often limited to 1.5-2 years of active operation.
If the headphone is not holding a charge (it works 5-10 minutes) or does not turn on after 3 hours in the case, the battery is dead. Replacing the battery in such compact cases is not economically feasible, since the cost of work and spare parts can exceed the price of a new device.
Consider buying a new set if:
- 🛑 The warranty period passed and a hardware breakdown was detected.
- 🔋 The Autonomous Work Time has been reduced to 15-20 minute.
- 💧 Headphones have been exposed to water or a severe impact.
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If a complete reset and cleaning of contacts did not help within 30 minutes of diagnosis, the probability of hardware failure is more than 90%.