Why Xiaomi Mi True Wireless headphones do not mate with each other – a complete analysis of the causes and solutions

The Xiaomi Mi True Wireless headphone synchronization problem is one of the most common user complaints: One headphone connects to the phone, the other is silent, both blink differently, or the sound is only in one ear. Is the situation familiar? 80% of the time, the problem is solved without contacting the service, it is enough to correctly diagnose the cause and follow several steps.

In this article, we’ll explore all the possible reasons why Mi True Wireless (including AirDots, Buds, TWS 1/2/3 models) stop conjugating, from trivial battery discharge to firmware failures. You will get step-by-step instructions with illustrations (in text format), a table of device compatibility and answers to frequent questions, and special attention will be paid to the hidden settings MIUI, which are often missed even by experienced users.

If you've tried rebooting your headphones and your phone before, but the result is zero, don't rush to carry it for repair. 9 out of 10 malfunctions are due to software failures, not hardware breakdowns. Let's start with the simplest and get to the hardest cases.

1. Battery discharge or charging case malfunction

The most obvious but often overlooked reason is insufficient charge: Xiaomi Mi True Wireless headphones can behave unstable if the charge level in one of them has dropped below 10%, and the indicator on the case can show green, creating the illusion of full charging.

How to check:

• 🔋 Put both earbuds in the case for 10-15 minutes (even if the light is green).
• 📱 Check the charge level of each headphone in the Mi Home or Xiaomi Wear app (Devices → Headphones section).
• ⚡ Try charging the case from another cable/power supply—sometimes the problem is a faulty USB- port.

Critical: If the case does not charge the headphones at all (the indicator does not change after an hour in the case), this is a sign of a breakdown of the power controller, in which case the case needs to be replaced or repaired.

⚠️ Warning: Do not use fast charges above 5W for the Mi True Wireless case. This can cause the battery to overheat and fail.

2. synchronization failure after firmware update

Xiaomi regularly releases updates for its TWS- headphones, but sometimes they lead to a loss of communication between the left and right earphones.This is because the firmware can be updated out of sync: one headphone received an update, and the second – not.

How to fix it:

1. Remove the headphones from the list of conjugate devices on the phone (Settings → Bluetooth).
2. Put both headphones in the case and close the lid for 30 seconds.
3. Pull them out and hold the button on the case for 10-15 seconds until the indicator flashes red and white.
4. Connect again via Bluetooth. The system should offer a firmware update, you can agree.

If the update is hanging:

• 🔄 Reboot the phone.
• 📵 Turn off Bluetooth for 1 minute, then turn it on again.
• 🔌 Connect the case to charging during the upgrade (this stabilizes the process).

3. Hardware damage: water, falls, wear of contacts

Xiaomi Mi True Wireless headphones have IPX4 protection, but that doesn’t mean they can withstand immersion in water or steam in the bathroom. Even a little moisture can oxidize contacts on the headphones or inside the case, which will lead to loss of synchronization.

Signs of hardware problems:

• 💧 Headphones stopped charging in the case (indicator unresponsive).
• 🔊 The sound is interrupted or distorted in one of the headphones.
• 🔥 Case or headphones are heated when charged.

What to do:

1. Dry your headphones and case for 24 hours (use silica gel or rice in a sealed bag).
2. Clean the contacts with a cotton swab soaked in isopropyl alcohol (do not use vodka or acetone!).
3. Check the integrity of the rubber seals on the headphones – if they are torn, moisture will get inside.

⚠️ Warning: If the headphones start to creak or crack when moving after a fall, it's a sign of mechanical damage to the speaker. Self-repair is impossible, requiring membrane replacement.

4. Resetting headphone settings to factory

If the software methods didn't work, it's time to do a full reset, which will remove all the stored pairing settings and bring the headphones back out of the box.

Instructions for all Mi True Wireless models:

Make sure that both earphones are in the case.|Open the case lid.|Press and hold the button on the case for 15 seconds (until flashing in red)|Close the lid for 10 seconds, then open and try pairing again.-->

For the AirDots Pro and Buds 3 models, the process is slightly different:

1. Get both earphones out of the case.
2. Press and hold the touchpads on both headphones simultaneously for 10 seconds.
3. Wait for the double beep and the lights to flash.

After reset, the headphones should appear in the list of available Bluetooth devices as Mi True Wireless (without the prefix "LE" or "R/L"). If this does not happen, the problem may be blocking the MAC- address at the phone level.

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If the reset didn’t work the first time, repeat the procedure by pre-disabling Bluetooth on all devices that the headphones previously connected to (laptop, tablet, Smart TV) and this will eliminate pairing conflicts.

5.Conflicts with Bluetooth profile on the phone

Sometimes the problem isn't with the headphones, but with the Bluetooth cache on your smartphone, especially for MIUI devices, where the system can "forget" the connection settings.

How to clear the cache:

1. Go to Settings → Applications → Application Management.
2. Find Bluetooth in the list of system applications.
3. Click Warehouse → Clear the cache and Clear the data.
4. Reboot the phone.

For Xiaomi/Redmi/POCO phones, additionally:

• 📱 Open the Settings. → Bluetooth.
• Click on the three dots in the top right corner and select Refresh (Update).
• 🔍 Enable Developer Mode (Settings → About Phone → Version MIUI – Press 7 times) and activate Debugging over Bluetooth.

Important: If you use dual Bluetooth (e.g., plugging in headphones and smartwatches at the same time), disable the second device. Mi True Wireless can conflict with other gadgets at 2.4GHz.

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Cleaning the Bluetooth cache is the most effective way to eliminate “ghost” connections, where the headphones are defined by the system, but do not reproduce sound.

Problems with device compatibility

Xiaomi Mi True Wireless headphones are optimized for MIUI phones, but should support other devices, but in practice, conflicts arise, especially with:

• 📱 Samsung One UI smartphones (problems with the aptX codec).
• 💻 Laptops on Windows 10/11 (Qualcomm Atheros drivers).
• 🎮 Game consoles (PS4/PS5, Nintendo Switch – an adapter is required).

Compatibility table:

For Windows:

1. Open Device Manager (Win + X → Device Manager).
2. Find the Sound, Video and Gaming Devices section.
3. Remove the device called Mi True Wireless or Bluetooth Hands-free Audio.
4. Restart the PC and reconnect the headphones.

7.When to contact the service: signs of malfunction

If you've tried all the methods, but the headphones still don't match, it might be a hardware breakdown.

• 🔥 Cases or headphones are very heated when charged/used.
• 🔌 Headphones are not defined by any device (phone, PC, other smartphone).
• 🔊 One of the headphones has no sound at all (even after resetting).
• 🔋 The battery is discharged in 10-15 minutes (a sign of battery bloating).

The average cost of repairs in official Xiaomi services:

• Replacement of the battery in the headphone: 800-1200 ₽.
• Case replacement: 1500–2500 ₽ (depending on model)
• Bluetooth module repair: 2000–3500 ₽.
• Diagnosis: 300–500 ₽ (often free if you repair them).

Important: If the headphones are warranty, do not try to disassemble them yourself - this will void the warranty obligations.

1. Integrity of the printed circuit board (for cracks after a fall).
2. Bluetooth antenna status (a common problem after washing in your pocket)
3. The power controller's performance.

⚠️ Warning: In informal services, it's often offered to "sweeten contacts" for 500 ₽, but this is a temporary solution. If the chip is a problem, this repair will extend the life of headphones by a maximum of 1-2 months.

8. Alternative ways of connecting (if nothing helps)

If the headphones stubbornly do not want to mate with each other, but each of them works separately, you can try non-standard methods of connection:

Method 1: Connecting as two separate devices

1. Open Bluetooth settings on your phone.
2. First, connect the Mi True Wireless_R (right earphone).
3. Then manually locate and plug in Mi True Wireless_L (left).
4. In some firmware, this allows you to restore stereo sound.

Method 2: Using Third-Party Applications

Applications like Bluetooth Auto Connect or TWS Earbuds Reset (available on Google Play) can force pairing.

• 📱 Install the app and give Bluetooth access.
• 🔍 Select from the Mi True Wireless list.
• 🔄 Press Reset Connection or Force Pair.

Method 3: Connecting via another phone

Sometimes the headphones forget the main device and block the connection to it.

1. Connect the headphones to another smartphone (preferably on Android 10+).
2. Play for 2-3 minutes.
3. Turn it off and go back to the main phone.

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If the headphones work separately but don't sync, the problem is almost always software-based. Hardware breakdowns usually show up with no sound or charge at all.

FAQ: Frequent questions about Mi True Wireless issues