The situation when only one wireless earphone fails is one of the most common and annoying problems for owners. TWS-It's especially frustrating to see this on the popular Xiaomi Basic 2, which is famous for its price-performance balance, and you might notice that the sound is gone completely in one of the channels, or the device just stopped responding to touch and commands.
Before you panic and search for a service center, you need to conduct a number of diagnostic measures. Often the reason is not a physical breakdown of the speakers, but a software failure of synchronization between the left and right modules. In this article, we will discuss in detail the algorithms of actions that will help return Mi True Wireless Earbuds Basic 2 to full operation.
It's important to understand that today's Bluetooth devices are complex microcomputers that require proper maintenance, and 90 percent of the time, the problem is solved by forced resetting to factory settings, which eliminates pairing errors accumulated in the device's memory over the lifetime.
Diagnostics and primary health check
The first step is to eliminate the trivial causes: make sure that both earbuds have sufficient charge. Sometimes one of the modules can discharge faster due to microscopic leakage of current or poor contact with the charging case. Put the headset in the case and leave for 20-30 minutes, watching the indicators.
If the indicator on the broken earphone does not light up when placed in the case, the contact areas may have become contaminated. Gently wipe them with a dry cotton swab, and it is also worth checking whether the mechanical control button, if it is present in your modification, or the touch area, sticks.
⚠️ Warning: Never use wet wipes or alcohol to clean contacts inside the case unless you are sure of full drying.
Try connecting the headset to another smartphone or tablet, which will let you know if the problem is in the Xiaomi device itself or in the Bluetooth module of your phone, if the other gadget has sound in both channels, then you need to reset the Bluetooth settings on the main phone.
The procedure for complete reset (Hard Reset) headphones
The most effective way to solve the problem of desynchronization is a complete reset. For the Xiaomi Basic 2 model, this procedure is performed mechanically through the buttons on the cases. You need to remove both earphones from the charging case.
Press and hold the touch zones on both headphones simultaneously for 5-7 seconds until the indicators go out (if they were burning). After that, continue holding your fingers for about 20 seconds. When the indicators flash red several times, the reset can be considered complete.
☑️ Reset algorithm Xiaomi Basic 2
Once you've done the manipulation, put the headset back in the case and close the lid. Let the device stand for 10 seconds. Then open the case and re-search the device in your smartphone's Bluetooth menu. It's important to remove the old headphone record (Mi True Wireless EBs Basic 2) from the list of paired devices before reconnecting.
Resolving Connection and Dissynchronization Problems
Sometimes one earbud works and the other is silent because they're not hearing each other and they're mono, and in this case, the stereo doesn't form, and to fix that, you have to get them to find each other again before they're connected to the phone.
Reset as described above, but don't rush to turn on Bluetooth on your phone after that. Wait for the lights on both headphones to flash white quickly, signaling search mode. Only when one stops flashing (or blinks less often) will communication between them be restored.
| Indication | Meaning | Action. |
|---|---|---|
| The indicator is burning red. | Charging is in progress. | Leave it in the case. |
| The indicator flashes white | Interconnection mode | Search in Bluetooth. |
| The indicator flashes red. | Mistake or discharge | Charge or drop |
| The indicator is not on. | Switched off or asleep | Press the button/tap |
If after all the procedures, one Xiaomi Basic 2 headphone still doesn’t work, there may be a problem in the radio module of a particular instance. Try “forgetting” the device on your phone, putting the headphones in the case, closing it, and then opening and restarting the search.
Why are the headphones out of sync?
Cleaning the speaker mesh and eliminating physical defects
Often the cause of a quiet sound or its complete absence is a banal earwax that clogs the speaker's protective grid. The sound cannot pass through a dense cork, and the user feels that the earphone has broken. Carefully examine the output hole of the sound.
To clean, use a soft toothbrush or a dry cotton swab, you can carefully use the sticky side of the tape to pull the dirt out of the mesh, and do this very carefully so as not to push the dirt deeper into the case.
Check the integrity of the case. If the headphone fell, the internal plume connecting the battery to the motherboard could move away, and in such cases, you can't do without opening the case and soldering, which requires micro soldering skills and tools.
⚠️ Note: Disassembly of headphones Xiaomi Basic 2 almost always leads to loss of warranty and violation of the tightness of the case.
Checking smartphone settings and codecs
The problem may not be in the headset, but in the settings of the phone's operating system. Go to the developer settings (if they're enabled) and check the Bluetooth settings, sometimes the channel balance is lost or an incompatible audio codec is selected.
Try switching codecs from aptX or LDAC to standard SBC. Xiaomi Basic 2 supports basic codecs, and attempts to force high sound quality can lead to dissynchronization of channels or loss of sound in one of them.
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If you have Android, try turning off the "Absolute Volume" option in Bluetooth settings, which will allow you to adjust the volume independently on your phone and in your headphones, which sometimes solves the problem of quiet sound in one channel.
It’s also worth checking the sound balance in the special features of your smartphone, making sure the balance slider isn’t shifted completely to the right or left, a setting that often happens randomly in your pocket or when you use covers.
When professional repairs are needed
If none of the software methods worked and the physical cleaning failed, the battery or speaker probably failed. TWS-Headsets use very compact batteries that degrade over time.
One earphone can stop working if its battery goes into deep discharge and the charging controller has blocked the current supply, and it is difficult and dangerous to restore such cells at home, in which case it is more rational to contact a service center or purchase a new device.
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If, after resetting and cleaning, one Xiaomi Basic 2 headphone does not show signs of life (no indication, no sound), the battery or dynamic emitter is likely to malfunction, which requires replacement of components.