The situation when one headphone Xiaomi or Redmi stops playing sound, is one of the most common problems owners. TWS-Headset: You may find that the left or right channel is silent, or the device loses communication with the smartphone, continuing to burn with the indicator. Often the cause is the dissynchronization of channels, when the right and left modules stop “hearing” each other.
In most cases, the problem is not related to the physical failure of the speakers or battery. Software failure in the Bluetooth controller or oxidation of contacts are the main enemies of stable operation. Before you carry a gadget to the service center, you should try a number of actions that in 90% of cases bring the device back to life.
In this tutorial, we'll break down the mechanical and software methods of resuscitation, learn how to properly clean contact pads, perform a full Hard Reset, and reconnect the device to the phone, and it's important to act consistently, because chaotic taps can only aggravate desynchronization.
⚠️ Attention: If the earphone falls into the water or is hit hard, software methods may not help.
Main causes of failure of one channel
Understanding the nature of the problem helps you choose the right algorithm for actions, and most often, owners are faced with the fact that one Mi True Wireless Earbuds earphone discharges faster or does not turn on at all, which may indicate a banal lack of contact with the charging case.
Another common scenario is desynchronization: the left and right headphones should be paired, transmitting a signal between each other, if this communication is broken, the phone sees only one device, and the second remains in standby mode, and there may be conflicts of Bluetooth profiles in the memory of the smartphone.
Technical reasons may be due to contamination of the speaker mesh with earwax or dust, which creates an acoustic barrier, the sound becomes quiet or disappears completely, although the electronics are working, and less often there is a factory defect of the battery, which ceases to hold charge after several months of operation.
Diagnostics and mechanical cleaning of contacts
The first step is always to check the physical condition, and if one Redmi Buds earphone doesn't light up when it's removed from the case, it's not getting charged, and the contacts often form an oxide film or plaque that prevents the transmission of current.
To clean, you'll need a cotton swab and some alcohol or an alcohol wipe. Carefully wipe the gold contacts on the earpiece itself and the pins inside the charging case. Do not use water or aggressive chemistry, as this can damage the electronic board.
After cleaning, put the headset in the case and check for the light. If the LED doesn't get stuck, try gently pressing the earphone with your finger against the contacts. Sometimes the problem lies in the weakened spring mechanisms of the case.
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Use a dry toothbrush to gently clean the speaker mesh from sulfur – this often returns the volume that has gone missing due to acoustic clog.
Complete Reset (Hard Reset)
If mechanical cleaning doesn't work, you need to reset your settings, which force you to break old connections and force Bluetooth modules to look for each other again. Different Xiaomi and Redmi models may have a slightly different procedure, but the basic principle is the same.
Place both earbuds in the charge case and leave the lid open. Find the function button on the case case case (usually one). Press and hold it for 15-30 seconds. Indicators should start flashing white or orange, signaling a successful reset configuration.
In models without a button on the case (such as some versions of Mi True Wireless Earphones), the reset is done through touch panels. Remove the headphones, touch the touch areas on both devices simultaneously and hold for about 5-10 seconds until the color of the indicator changes.
☑️ Reset algorithm TWS
Profile removal and re-pairing
Once the reset is done, it is critical to reconnect the device correctly. A smartphone can "remember" an old, already irrelevant connection profile, which causes conflicts. Go to your phone's Bluetooth settings.
Find your headset (e.g. Mi True Wireless Earbuds Basic 2) in the list of previously connected devices. Click on the gear or information icon and select "Forget the device" or "Disconnect." Delete the profile completely.
Now, remove the headphones from the case. They should go into pairing mode (the indicators flash quickly). Turn on Bluetooth on your phone and find the device in the list of available ones. Click on the name to connect. Now both channels should work synchronously.
⚠️ Warning: When reconnecting, make sure that there are no other devices that the headphones have previously been connected to nearby.
Comparison of recovery methods
Not all methods are equally effective in different situations. Below is a table that will help you choose a strategy based on the symptoms of your device malfunction.
| Symptoms. | Probable cause | Method of decision | Efficiency |
|---|---|---|---|
| The earpiece doesn't burn. | Battery discharge/Oxidation | Cleaning contacts / Charging 30 minutes | Tall. |
| No sound in one channel. | Razsynchronization | Hard Reset (button reset) | Very high. |
| Quiet sound/wheezing | Grid contamination | Mechanical brushing | Medium |
| Can't see the phone. | Phone bug | Delete Bluetooth profile | Tall. |
As you can see from the table, most of the time, the problem is solved without opening the case, but if none of the software methods worked, it might be the hardware, it could be the battery failure or the speaker.
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If one headphone still doesn’t work after resetting and cleaning, try connecting the headset to another phone.
Use of Mi Earbuds and Software Update
For advanced users of the Xiaomi ecosystem, the Mi Earbuds app (or Mi Home integration) is available, which allows you not only to manage the equalizer settings, but also to check the status of each headphone separately.
Go to the app and check the charge level of the left and right modules. If the app shows 0% for one of them, even though the indicator is on, maybe calibrating the battery is down. In this case, complete discharge can help: leave the headphones outside the case until completely switched off, and then charge them to 100%.
Firmware updates are also available in the app. The firmware fixes connection errors and improves stability. If you see an update available, be sure to install it by putting both earbuds in a case with a sufficient charge level.