Why Xiaomi’s headphone doesn’t work and how to fix it?

The situation when one headphone from a pair of Xiaomi Mi True Wireless stops playing sound, is quite common and can catch the user by surprise. Most often, the problem lies not in a physical breakage of the speaker, but in a software failure, a violation of synchronization between devices or contamination of charging contacts. Owners of Redmi and Mi headsets often face the fact that the left or right module simply “falls out of pairing, continuing to burn with the indicator or lie silently in the case.

Before writing for technical support or carrying a gadget to a service center, it is worthwhile to conduct a number of diagnostic procedures. Balance disturbance or complete silence in one channel are often eliminated by simply rebooting or cleaning charging contacts that may have been oxidized from sweat. It is important to understand that wireless headphones are complex microcomputers, and they, like smartphones, sometimes require a “hard” reset to work properly.

In this article, we will discuss in detail the algorithms that will help you return sound, we will look at the methods of hardware reset, the features of the Mi Wear application, and how to fix Bluetooth connection problems at the level of your smartphone operating system. Follow the instructions consistently to identify and fix the cause of the malfunction.

Diagnostics and primary charge check

The first step should always be a banal, but often ignored, charge check. If one earphone is completely discharged, it may not automatically turn on when removed from the case, creating the illusion of a breakdown. Make sure that both devices fit tightly to the contacts in the charging case. Often, magnets in the case attract the earpiece, but due to dust or pile contact does not close, and charging does not go.

Look at the LED lights. When you take the devices out, they should light up, signaling that they're ready to go. If one of them is silent, try to wipe the charging contacts on the earpiece itself and inside the case with a dry cotton swab. Fat plaque from the skin of the hands is a common reason why Xiaomi stops charging and, as a result, works.

💡

Use a dry toothbrush with soft bristles to clean the speaker mesh and charging contacts.This safely and effectively removes earwax that blocks sound and charging.

It’s also worth checking if your smartphone’s power saving mode is on, which can aggressively limit Bluetooth modules. Try connecting the case to another power source or cable to rule out power problems. If after carefully charging for 30-40 minutes, things haven’t changed, move on to more sophisticated recovery methods.

Hardware Reset and Reset (Hard Reset)

The most effective way to solve the problem of desynchronization is to completely reset the headphones, which will bring them back to the factory parameters and make them re-find each other. For most Mi True Wireless models, the procedure is to place both headphones in the charging case and open the lid. Find the function button on the case case case case case case (usually round or oblong).

Press and hold this button for 10-15 seconds. The indicators on the headphones or on the case should start flashing a certain color (often white or orange), signaling to enter pairing mode. After that, remove the old device from the Bluetooth list on the phone. Go to the settings, find the name of your headset and select the option "Forget the device" or "Disable".

Once you reset, close the case cover, wait a few seconds and open it again. The headphones must automatically find each other (one will become a master, one will be a slave), and then appear in a Bluetooth search on your phone. Important: when paired, keep the phone no more than 10-15 cm from the case for a stable connection.

💡

Successful reset is confirmed by the simultaneous flashing of the indicators of both headphones, which indicates the restoration of communication between the left and right channel.

Bluetooth Settings and Sound Balancing in Android

Sometimes the problem isn't with the headphones themselves, but with the Android operating system settings. The system could have changed the sound balance by shifting it completely into one channel. To check this, go to Settings → Sound and Vibration → Left-right-hand balance. Make sure the slider is in the center.

Also worth noting is the Bluetooth codec. Some Xiaomi models may conflict with certain codecs (such as aptX HD or LDAC) on some versions of Android. Try switching the codec to the Developer Settings menu. To access this menu, click 7 times in a row on the build number in the About Phone section, then in the developer menu that appears, find the "Bluetooth Audio Codec" item and try changing it to SBC or AAC.

⚠️ Note: Changing the settings in the developer menu may affect the performance of other Bluetooth devices. After checking, return the settings to the original state or leave the most stable option.

Another reason could be the cache of Bluetooth services. Go to Settings → Apps → Show system processes → Bluetooth. Select the option "Clear cache" and "Clear data." After that, reboot the smartphone. This action will delete all stored device profiles, so they will have to be paired again, but often this solves the problem of "glutty" connection.

Using the Mi Wear app and updating the firmware

The official Mi Wear app (formerly Mi True Wireless) is a powerful diagnostic tool. If your headphones support this app, be sure to install it. Through the program interface, you can see the exact percentage of charge of each headphone separately. If the app shows that one of the modules has 0% charge or is not displayed at all, the problem is likely hardware or deep discharge.

Inside the app, firmware updates are often available. Headphone firmware is the firmware that controls the work. Developers regularly release patches that fix connection errors and stability problems. If one headphone is unstable, the update can fix bugs that cause the connection to break.

The upgrade process requires a stable Internet connection and a case charge of at least 50%. Do not open the case lid or remove the headphones during the upgrade, as this may cause the device to break. Follow the instructions on the screen, and if the update is successful, check the sound.

Table of indication codes and their decoding

Understanding LED signals is key to quick diagnosis. Different Xiaomi and Redmi models may have their own characteristics, but the basic logic of the display is the same. Below is a table that will help you understand the state of your headphones.

If you see a constant burning of a red light on one of the headphones even after a long charge, it may indicate battery degradation or a malfunction of the power controller.

Physical damage and cleaning of the speaker grid

And the physical condition of the device is also important, because earwax is the main enemy of any liner, it can completely fill the sound grid, which will make the sound quiet or disappear completely. Visually, this may not be noticeable, so use a flashlight for inspection. Carefully clean the grid with a dry brush or a special sticky tape to clean the equipment.

Check for moisture. If you used headphones during exercise or were in the rain, moisture could condense inside. Put the headphones in a dry place (not on the battery!) for a day. Moisture can short the contacts or distort the speaker membrane.

⚠️ Warning: Never use alcohol or aggressive chemicals to clean plastic enclosures and mesh, this can dissolve the glue holding the elements or damage the coating.

Also check the case for damage, if one of the spring-loaded contacts inside the case is west or broken, the earphone will simply not charge, in which case you can try to gently (very carefully!) raise the contact with a toothpick, but there is a risk of permanently damaging the mechanism.

Guarantee cases and contact with the service

If none of the software methods worked and cleaning the contacts failed, there is likely a factory defect or component failure.The warranty period for Xiaomi products is usually 12 months.Save the check and box as they may be required for return or exchange.

It is worth contacting the service if:

• 🔋 The headphone does not hold the charge (discharges for the 10-15 minute).
• 🔇 Loss of sound when moving the head or tilting.
• 🔊 You can hear cracking, wheezing or static noise in only one channel.
• 💡 The indicator burns red constantly, ignoring charging.

Remember, opening your headphones yourself almost always leads to a loss of warranty, because inside they are assembled with glue, and it's extremely difficult to open them gently without damage to the body, and if the device is new and malfunctioning, you better use consumer rights.

💡

Self-repair TWS-headphones are economically inexpedient due to the complex design and high cost of the original components (batteries and speakers).

Frequently Asked Questions (FAQ)