Xiaomi headphones do not work separately: 7 ways to return stereo mode

Why does one Xiaomi headphone stop working on its own?

Did you pull out a Xiaomi Redmi AirDots or Mi True Wireless headphone from your case, and you find that one is connecting to the phone and the other is silent? Or are both earphones only working together but refusing to play the sound separately? TWS-headphones due to a synchronization failure between the right and left modules.

In 90% of cases, it is not a hardware defect, but a software failure β€” for example, after updating a firmware, battery discharge to 0% or connecting to several devices at the same time. Less commonly, the problem lies in the physical damage of contacts inside the case or the wear of the battery of one of the headphones. In this article, we will discuss all the working ways to restore independent work of Xiaomi headphones, including hidden settings and hardware checks.

Before you take your device to the service center, try simple steps from resetting to forced resynchronization. Most methods take no more than 5 minutes and require no special skills.

Basic checks: what to do first

Before you do complex manipulations, make sure that the problem is not trivial things.

Check the charge of the case and headphones (the indicator should burn white / green)

Make sure the headphones are properly placed in the case (magnetic contacts match)

Reboot your smartphone or other device that your headphones are connected to

Try connecting to another phone/PC to check compatibility

Update the firmware of headphones through the Mi Home app or Xiaomi Wear>

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If the headphones still don’t work separately after these steps, then please move on to the following ways.Please note: some Xiaomi models (like Redmi Buds 3 Lite) don’t support mono mode initially – check this in the specifications of your model.

⚠️ Warning: If the indicator on the case flashes red or does not burn at all, the problem may be a damaged battery, in which case a replacement of the battery or case is required.

2. Resetting headphone settings to factory

The most effective way to get independent work back is to reset hard, which cleans all the connections you've saved and returns the headphones to their original settings. Xiaomi/Redmi:

  1. Put both headphones in the case and close the lid.
  2. Press and hold the button on the case (usually located behind or below) for 10-15 seconds until the indicator starts flashing red and white alternately.
  3. Open the case cover - the headphones will automatically go into pairing mode (the indicators will flash white).
  4. Connect the headphones to your phone via Bluetooth, as when you first use it.

After reset, try using the headphones separately. If the problem persists, move on to the next method.

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On some models (such as Mi True Wireless 2), you need to hold the touch panels on both headphones simultaneously for 10 seconds until the double signal sounds.

3. Forced resynchronization of the right and left earphone

If the reset didn't work, maybe the synchronization between the modules is broken, and you can manually restore it.

  1. Get both earphones out of the case.
  2. Press and hold the touchpads on both headphones simultaneously for 15-20 seconds.
  3. Wait for the double beep (or the flashing of the indicators synchronously).
  4. Put the headphones back in the case for 10 seconds, then take out and check the work.

This method often helps if one earphone connects to the phone and the other doesn't see the first one, or vice versa. If the sync hasn't recovered, try updating the firmware.

Redmi AirDots (1/2/3 generation)

Mi True Wireless (1/2)

Xiaomi Buds 3/4 Pro

Redmi Buds 3 Lite/Pro

Another model-->

4. Update of firmware through the official annex

Outdated firmware can cause conflicts when connecting headphones separately. Update it via Mi Home or Xiaomi Wear:

  1. Install the Xiaomi Wear app (for new models) or Mi Home (for older models).
  2. Connect the headphones to the phone via Bluetooth.
  3. Open the app, find your headphones in the list of devices.
  4. Go to the device settings β†’ Update the firmware.
  5. If a new version is available, click Update and wait for the process to complete (don’t interrupt the connection!).

After the update, reset the settings (see Section 2) and check the work of the headphones separately.

Model headphonesMinimum firmware version for stable operationDoes it support mono-regime?
Redmi AirDots 31.4.0.9Yes.
Mi True Wireless 21.7.1.3Yes.
Xiaomi Buds 4 Pro2.0.0.8Yes (with limitations)
Redmi Buds 3 Lite1.2.0.5No.

⚠️ Note: If the headphones stopped turning on after the firmware update, reset (section 2) and repeat the procedure. In 1% of cases, the firmware is installed with an error - it helps to re-update.

5. Checking contacts and cleaning headphones

If the software methods fail, the problem may be physical damage:

  • πŸ”‹ Wear of contacts in the case: Check if there is oxidation or contamination on metal contacts (clean with an alcohol napkin).
  • πŸ”Œ Poor connection of the headphone to the case: Try to slightly press the headphone when charging - if the indicator lights up, the contacts require repair.
  • πŸ”‹ Battery discharge: If one earphone is discharged in 10 minutes, its battery is worn out (replacement is required).

To clean the contacts:

  1. Take a cotton swab dipped in isopropyl alcohol (at least 70%).
  2. Gently wipe the contacts on the headphones and inside the case.
  3. Let it dry for 5-10 minutes, then try connecting.
How to check the capacity of the headphone battery?
Download the AccuBattery (Android) or Battery Life (iOS) app. Connect your headphones and see the current charge level of each module separately. If the difference between the right and left earphone is more than 30%, one of the batteries needs to be replaced.

6. Alternative methods: if nothing helps

If standard methods don’t work, try these options:

  • πŸ“± Connecting via another device: Sometimes the headphones "remember" the wrong attachment settings to a particular phone.
  • πŸ”„ Using Developer Mode: On Android, activate Developer Mode (7 times click on Build Number in your phone settings), then in Settings β†’ System system β†’ For developers, turn on Bluetooth debugging and reconnect the headphones.
  • πŸ› οΈ Manual flashing: For advanced users, firmware via Fastboot or specialized utilities (for example, TWS Toolbox? A risky method is only if you are confident in your skills!

If the headphones still do not work separately, but function properly in a pair, the problem may be a hardware malfunction of one of the modules. In this case, contact the Xiaomi service center - warranty repair (if it is valid) usually takes 3-5 days.

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In 95% of cases, the problem is solved software (reset, sync, update), if the headphones do not respond to these methods, the hardware is to blame - contacts, battery or Bluetooth chip.

FAQ: Frequent questions about the work of headphones Xiaomi

Can you use only one headphone in a pair all the time?
Yes, but it shortens the battery life of an unused earbud, and it is recommended to discharge and charge both modules at least once a week to keep synchronization. Some models (such as the Xiaomi Buds 3 Pro) automatically turn off the inactive earbud after 72 hours to save charge.
Why does the left/right earphone connect but not play sound?
This is a typical sign of a synchronization gap between modules: Perform forced resynchronization (see section 3) or reset. If only one earphone has sound when connecting to a PC, check the settings of the audio device in the system (possibly only one channel is selected).
How do I check if my model supports mono-mode?
Open the official page of your model on the Xiaomi website or check in the Xiaomi Wear app. The specifications should indicate: Mono mode support: Yes. For example, Redmi Buds 3 Lite does not support independent work, and Mi True Wireless 2 supports.
What if after updating the firmware headphones stopped turning on?
This is because of an interrupted refresh process. Try: Put your headphones in your case and plug the case into your charge for 1 hour. Reset (hold the button on your case for 20 seconds). If the indicators don't respond, contact the service - the memory chip may have been damaged.
Can I repair Xiaomi headphones myself?
Replacement of the battery or contacts is possible with soldering equipment and spare parts, but not recommended without experience - there is a high risk of damage to the board. It is easier and cheaper to contact the service. Average repair cost: Replacement of the battery: 800-1500 β‚½ Contact repairs: 500–1000 β‚½ Replacement of Bluetooth module: 1500–2500 β‚½