When a wireless headset stops working in pairs, it often takes you by surprise: you take out a case, you take out your headphones, but the sound is only heard from one device, or they don't see each other at all. TWS-Users often mistakenly believe that the device is broken, but in 90% of cases it is a software failure that is easy to fix.
Xiaomiโs ecosystem includes many models, from the popular Mi True Wireless Earbuds Basic to the advanced Redmi Buds and Xiaomi FlipBuds. Despite the differences in design and price, the algorithm for pairing them remains similar. Disruption of this process can be caused by the discharge of one of the modules, a failure in the Bluetooth stack of a smartphone or contamination of contacts. Understanding the physics of the process helps to quickly find the root of the problem.
In this article, we will take a closer look at all the possible reasons why shaomi headphones donโt connect to each other, and provide step-by-step instructions for restoring them, learn how to perform a full reset, properly clean contacts and use specialized diagnostic applications, the main thing is not to panic and consistently perform actions.
The main reasons for dissynchronization TWS-headset
The root cause of most problems is a breach of handshake protocol between the left and right earphones, and in TWS mode, one device acts as a master transmitting sound from a smartphone, and the other as a Slave receiving a signal from a master, and if communication between them is lost, they start to work independently or remain silent.
A common culprit is different battery levels. If one earphone is discharged to zero, and the second is still charged, when placed in the case and then charged, a situation may arise when a fully discharged module does not have time to โwake upโ and synchronize with the partner at the time of extraction.
โ ๏ธ Note: If one of the headphones for a long time lay apart from the case and completely discharged, he may need to 15-20 minutes in the charging case so that the power controller is activated and starts receiving data.
Itโs also worth considering the impact of third-party Bluetooth devices. If there are a lot of gadgets in range, or if your headphones have previously been paired with another phone thatโs now active, they may try to connect to it, negating each other. Signal interference in the 2.4 GHz band (Wi-Fi routers, microwaves) can also break the stable connection between channels.
Full Reset (Hard Reset) method of headphones
The most effective way to make headphones "friend" again is to perform a full factory reset, which clears the modules' internal memory of old pairing profiles and forcibly triggers the match-finding procedure.
For most models, such as AirDots or Basic 2, the procedure is as follows: first, remove the device from the Bluetooth list on the smartphone (forget the device), then place both headphones in the case, then you need to pinch the touch pads on both headphones simultaneously and hold them for about 20-30 seconds until the indicators flash a certain color (usually red or orange).
โ๏ธ Reset algorithm TWS
In case-button models, such as some Redmi Buds 3 Pro versions, the reset is different: you open the case lid without removing the headphones, and press the pairing button on the case, holding it for 10 seconds. The indicator on the front should start flashing quickly in white or orange, signaling readiness for a new one.
Problems with charging contacts and case
Often the reason why shaomi headphones don't connect to each other is not because of the software, but because of the mud, and the metal contacts and the headphones themselves accumulate over time, and the skin fat, dust and oxides accumulate, and this creates high resistance, and the earphone simply doesn't charge, and it stays off.
Visually, the contamination can be imperceptible, so it is recommended to regularly wipe the contacts with a dry lilaless napkin or a cotton swab slightly soaked in isopropyl alcohol. Pay special attention to the depth of the seats in the case - pile is often stuffed from pockets.
| Symptoms. | Possible cause | Decision |
|---|---|---|
| The indicator is not on. | Mud on contacts | Drinking contacts with alcohol |
| Only burns when installed | Bad contact (backlash) | Stronger press the headphone in the case |
| Flashing red in the case | Charging error | Replace the cable or power supply |
| Left is not charged. | Calibration's gone wrong. | Discharge to zero and charge completely |
Also check the charging case itself. If its battery is dead, it won't be able to transfer power to the headphones. Make sure the cable is in good working order and the power supply delivers sufficient current (usually 1A or 2A). Using too powerful fast-charging units from smartphones can sometimes cause conflicts in the supply chain of cheap cases.
Use of the Xiaomi Earbuds app
To provide deep diagnostics and customization of ecosystem devices, Xiaomi has developed Xiaomi Earbuds (formerly Mi True Wireless) app, which not only tracks the charge, but also updates the firmware of the headphones, which often solves compatibility problems.
When you go to the app, you can see the status of each headphone separately, and if one of the devices doesn't show up or shows 0% charge, although it should be charged, that's a clear sign of a problem, and you can check through the app menu for firmware updates.
Why update the firmware?
In some cases, the app offers a headphone search feature or channel testing. Use these tools to make sure the audio stream is being transmitted correctly. If the application's software reset doesn't work, move on to more radical methods.
Resetting Bluetooth settings on your smartphone
Sometimes the problem is not the headset, but the Bluetooth cache on the phone itself, and the smartphones can "remember" the wrong connection settings, and you need to go to the system settings to clean up.
On Android devices, the path usually looks like this: Settings โ Apps โ Show system processes โ Bluetooth โ Memory โ Clear cache. After that, the phone will reboot and the list of paired devices can be cleared, which will require re-association.
Itโs also worth checking if Mono or Assistance is enabled in the phoneโs special features settings, which can force audio to only one channel.
โ ๏ธ Attention: Clearing Bluetooth data can result in the loss of saved profiles for all your devices (watches, speakers, cars.
What to do if nothing helps
If all of the above methods, from cleaning contacts to flashing, fail, there is a possibility of a hardware malfunction, which could be a failure of the Bluetooth module in one of the headphones or degradation of the battery, which no longer holds charge.
So it makes sense to try to connect the headphones to another smartphone, and if the problem is repeated on another device, the diagnosis is confirmed. TWS-Headsets are complex due to their miniature and glue connection of the housings.
๐ก
Try to empty the headphones completely, leaving them out of the case for a couple of days, and then charge to 100%.
For owners of Xiaomi original products, the best solution is to go to an authorized service center. If the warranty is still valid, the defective module will be replaced for free. In the event of expiration of its life, it is often cheaper to buy a new model than to repair the old one.
๐ก
90% of connection problems are solved by a complete cleaning of charging contacts and the Hard Reset procedure with timekeeping.