The situation when a pair of wireless headphones Xiaomi or Redmi sound is heard from only one device, is one of the most common complaints of users. This does not necessarily mean that the gadget is broken physically. Often the problem lies in a software failure, when the right and left modules stop synchronizing with each other, turning into two independent devices.
In most cases, users panic early, believing that the battery of one of the headphones has failed or a circuit break occurred. However, before carrying the device to the service center, you need to eliminate a number of software errors that are easily fixed at home, statistics show that more than 80% of these cases are solved by correct resetting.
In this article, we will discuss in detail the algorithms for restoring the headset, deep cleaning methods for Bluetooth memory and diagnosing hardware malfunctions, you will learn how to force pairing channels and return full stereo sound without unnecessary costs.
The main reasons for the desynchronization of the headset
The first thing to understand is that TWS (True Wireless Stereo) wireless headphones are a complex system where one device often acts as a master transmitter to the other, and if communication between them is broken, the sound will only go to the master module, which can happen after upgrading the smartphone operating system or discharging one of the batteries to a critical level.
The phone can also "remember" headphones as two different devices (for example, "Mi True Wireless EBs Basic" and "Mi True Wireless EBs Basic R"), which causes the connection to be established chaoticly. The accumulation of errors in the cache of Bluetooth services Android or iOS also blocks the correct operation of the audio stream protocol.
⚠️ Note: If one of the headphones has been in the case for a long time and completely discharged to zero, it may not turn on immediately. 30-40 minutes, even if the lights are not on.
Physical factors, too: Moisture, contact oxidation, or the simple contamination of the dynamic grid with earwax can create the illusion of a breakdown. In rare cases, the problem is that AAC or SBC codecs are incompatible with the specific application through which the media is played.
Basic reboot and cleanup of the pairing list
The most effective and safest method of recovery is to completely reset your connection history, and you need to remove the device from your smartphone’s memory to break any old, possibly corrupted configuration files, and go to your phone’s Bluetooth settings to do so.
Find the name of your Xiaomi or Redmi headphones on your list of devices. Click on the gear icon or the letter "i" next to the name and select the option "Forget the device" or "Cancel pairing." Then turn off the Bluetooth on the phone completely to stop the background search processes.
☑️ Primary reset algorithm
Now, put both earbuds in the charge case and close the lid. Wait 10-15 seconds, then open the lid without removing the headphones. The indicators should light up, signaling the beginning of the reconnection process. If the indicators do not respond, wipe the metal contacts on the headphones and inside the case with a dry cotton swab.
Turn on Bluetooth on your smartphone again and start searching. If the procedure is successful, one device will appear on the list, not two separate ones. Connect to it and check the sound. Some models, such as the Mi True Wireless Earbuds Basic 2, require you to press and hold the touchpads of both earbuds simultaneously for 5-7 seconds until the indicators flash red, which means entering pairing mode.
Reset (Hard Reset) methods
If simply removing the headphones from the list didn't work, you have to do Hard Reset, which brings the internal headphone firmware back to factory settings, erasing all temporary files and synchronization errors between the left and right channels, and may vary depending on the model.
For most models without a physical button on the case (like the Redmi Buds 3 Lite series or AirDots), the procedure is this: remove the headphones from the case, make sure they are turned off (or turn them off with a long press). Then press and hold the touch zones on both headphones simultaneously for 20-30 seconds. You will have to ignore voice commands and blinks, while continuing to hold your finger until the characteristic double blink or color change of the indication.
| Model headphones | Action for discharge | Indication of success | Retention time |
|---|---|---|---|
| Mi True Wireless EBs Basic | Hold sensors 5 seconds (off), then 20 seconds | Double flashing red | 20-25 seconds |
| Redmi Buds 3 Pro | Case button 10 seconds. | Orange blinking | 10 seconds. |
| Mi True Wireless 2 / 2S | Hold sensors for 20 seconds. | Throne flashing white | 20 seconds. |
| AirDots / Redmi AirDots | Hold sensors for 20-30 seconds | 5 times flashes red | 30 seconds |
For models with a button on the case, such as the Redmi Buds 3 Pro or Mi True Wireless Earphones 2 Pro, everything is simpler. Put the headphones in the case, open the lid and find a small button on the case (usually at the bottom or inside between the speakers). Press and hold it for about 10 seconds until the indicator starts flashing orange or white.
What if the reset does not occur the first time?
Diagnostics of hardware problems and charging
When software methods are exhausted, you should think about hardware. When only one earpiece is running, it's often because one of them just doesn't charge, and visually it might not be noticeable, because the indicator on the case can show the charge in the box itself, but not on the contacts.
Carefully inspect the contact areas (gold or silver dots) on the headphones themselves and inside the recess of the case, often accumulating oxide, dust or residues of earwax that block current. Cleaning should be done with a dry soft cloth or cotton swab lightly soaked in alcohol (but very carefully so that the liquid does not get inside).
Check each headphone separately. Put one in the case, close the lid and see if the charge indicator lights up. Then repeat for the second. If one of the headphones shows no signs of life (the indicator does not light up even after cleaning the contacts), there may be a problem in the battery or the power chain inside it.
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Use a multimeter or USB tester if the case has a USB-C input. Current consumption should jump when you put the headphone in the case. If the current does not change, no contact.
Specifics of working with different operating systems
Connection issues can be related to the operating system of your smartphone. Android often features the Absolute Volume Level feature, which can conflict with Xiaomi headphone drivers. Try to turn this option off in the Developer Menu.
iPhone (iOS) owners should be aware that the system sometimes caches device profiles aggressively. If the reset didn't work, try connecting to the headphones from another phone (Android or a friend). If everything works perfectly on another device, then the problem is precisely in the settings of your main smartphone, not in the headset.
It’s also worth checking out the firmware updates of the headphones themselves, often requiring Xiaomi Earbuds or Mi Home, and an outdated version of the internal software may contain bugs that the manufacturer has patched in newer versions.
⚠️ Warning: Don't try to connect headphones to a computer or laptop for diagnosis unless you have a quality Bluetooth adapter.A weak PC signal can distort test results, creating a false impression of a malfunction.
When repairs or replacements are needed
If none of the software methods worked, and cleaning the contacts also failed, there is likely a hardware breakdown. Most often, the battery of one of the headphones fails (it stops holding the charge or swells) or a dynamic emitter. TWS-Replacing the battery is a complex process that requires disassembly and soldering.
The cost of repairs is often 60-80% of the price of a new device, so it is more economical to purchase a new pair. However, if the warranty is still valid, safely carry the device to an authorized Xiaomi service center.
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If the earphone does not respond to charging and reset after 3 attempts, it is a hardware defect. Software methods do not fix it, you need to replace the module or the entire device.