Xiaomi AirDots wireless headphones have long been a popular accessory due to a combination of price, sound quality and convenience. However, many users face a typical problem: one of the headphones (most often the left one) suddenly stops connecting, only works in mono mode or does not sync at all with the pair module, the causes can be different from software failures to mechanical damage to contacts in the case.
In this article, we will discuss all possible ways to synchronize Xiaomi AirDots headphones (including the Pro, 2, 3, Lite and SE models), and explain why the problem occurs and how to prevent it in the future. If you have already tried a standard reset button on the case, but nothing worked, do not rush to throw the headphones. In 90% of cases, they can be “resuscitated” without repair.
Why are AirDots headphones out of sync?
Before you start setting up, it is important to understand the root of the problem, and consider the main reasons why Xiaomi AirDots stop working as a pair:
- 🔋 A discharged battery in one of the headphones or case, if the charge level is below 10%, the synchronization may be interrupted.
- 📱 Firmware failure after incorrect update or abrupt disconnection during connection.
- 🎧 Mechanical damage to contacts in the case or on the headphones themselves (oxidation, pollution, wear and tear).
- 🔄 Incorrect connection sequence – for example, if you first connect the left earphone, and not the right (main).
- 📡 Interference from other Bluetooth devices (especially in offices or public places).
Interestingly, in AirDots 3 Pro and later, the problem is often associated with automatic profile switching (for example, when used on multiple devices). In older versions (AirDots 1/2), the fault is usually the wear of the reset button on the case.
Preparing for synchronization: what to do before resetting
Before resetting, perform a preliminary diagnosis, which will save time and help avoid unnecessary actions:
- Check the charge: 🔌 Connect the case to charge for 10-15 minutes (even if the indicator is on). 🎧 Take out the headphones and make sure both light up red/white when removed.
- Clear the contacts: 🧴 Wipe the metal contacts on headphones and in the case with a cotton swab soaked in alcohol. ⚠️ Do not use sharp objects – it can damage the coating!
Check the connection to the phone:
- 📱 Remove headphones from the list of conjugated devices in Settings → Bluetooth.
- 🔄 Reboot your smartphone (sometimes helps with driver conflicts).
Critical: If one of the headphones doesn't respond to the extraction from the case (does not flash, does not make sounds), the problem may be a hardware malfunction of the Bluetooth chip, in which case, synchronization with software methods will not help.
☑️ Checklist before reset
Standard Synchronization Method (for all AirDots models)
This method works for 90% of cases and is suitable for all headphone versions, including AirDots Pro, AirDots 2 and AirDots 3.
- Step 1. Resetting settings: 🎧 Place both headphones in the case and close the lid. 🔘 Press and hold the button on the case for 15-20 seconds (until the white/red indicator flashes). 🔄 Release the button – reset is completed (earphones will automatically turn off).
- Step 2: Reconjugation: 📱 Open the Settings. → Bluetooth on your phone. 🎧 Get both headphones out of the case - a white indicator should flash (search mode). 🔍 In the list of devices will appear Mi True Wireless (or similar name) – click to connect.
Step 3: Checking the synchronization:
- 🎵 Turn on music – the sound should come from both headphones.
- 🔊 If only one sound is in it, repeat steps 1-2.
⚠️ Note: AirDots 3 Pro and AirDots SE After reset, you may need to update the firmware through the Mi Home app. Without this, the headphones may not work stable.
What to do if the button on the case does not work?
Alternative synchronization methods
If a standard reset didn’t help, try one of these methods (in order of effectiveness):
| Method | Suitable for models | Instructions | Success |
|---|---|---|---|
| Manual reset through headphones | AirDots 1/2, Pro | 1. Pull out both headphones. 2. Press the touchpads on both headphones for 10 seconds (until double signal). 3. Place back in the case and reconnect. | 70% |
| Connection via Mi Home | AirDots 3/Pro/SE | 1. Install the Mi Home app. 2. Select Add Device → Headphones. 3. Follow the instructions on the screen. | 85% |
| Reset via ADB | All models (PC required) | 1. Connect the phone to a PC with ADB. 2. Adb shell settings put global settings bluetooth_headset_priority 0 3. Reboot the phone and re-conjugate the pairing. | 60% |
Tips for AirDots 3 Pro owners: If the headphones are connected but only sound is in one, check the Mono/Stereo settings in the Mi Home app. Sometimes, after updating the firmware, the mode is reset to Mono.
💡
If the headphones are plugged in but are permanently off, try turning off Absolute Volume in the Android developer settings, which solves the problem of communication breaks on some smartphones.
Frequent Mistakes and How to Avoid Them
Many users make common mistakes that prevent successful synchronization, and here are the most common:
- 🚫 Connecting only one headphone (such as the right one) to your phone. Always start by removing both from your case at the same time.
- 🔄 If you release the button on the case before the time, the settings will not be completely reset.
- 📱 Using old firmware. AirDots 3 and newer without upgrading via Mi Home may have multithreading issues.
- 🔋 Ignoring a discharged case. Even if the headphones are charged, a case with a charge below 30% may not transmit a synchronization signal.
⚠️ Note: If the headphones are connected as two separate devices after reset (e.g. Mi True). Wireless_L and Mi True. Wireless_R), It means that the synchronization between them is broken at the hardware level, and then only flashing through the service center will help.
How to Prevent Dissynchronization in the Future
To avoid recurring problems, follow these simple rules:
- 🔌 Charge your headphones correctly: Don't leave them in a case for more than 24 hours on charge. Use the original cable (not fast charging!).
- 📱 Connect with one device: Frequently changing phones/tablets can be confusing.If you need to connect to another device, first remove the headphones from Bluetooth on the old one.
- 🧼 Clean contacts regularly: 1 time a month wipe contacts with a cotton swab with alcohol. Avoid getting moisture into the case.
💡 Useful Lifehack: If you use headphones with a laptop and phone often, turn on the dual connection option (if supported) in Bluetooth settings, which will reduce the number of reconnections and reduce the risk of crashes.
💡
The main reason AirDots are not synchronized is because you have not properly terminated your Bluetooth session (e.g., switching off your headphones with a button instead of returning to your case). Always put your headphones back in your case to properly disable them.
What do you do if nothing helps?
If you've tried all the methods, but the headphones still don't sync, there's a possibility of hardware failure.
- 🔧 Case problem: Check if the indicator on the case burns when you connect to the charger. If not, the power charge is faulty (repair required).
- 🎧 Failure of one of the headphones: Try to connect each earphone separately (if any of them don't connect, the problem is it).
- 📞 Call to the service: Official repairs will cost 1000-2500 ₽ (Alternatively, it's a replacement for the AliExpress headphone (priced from 500). ₽).
⚠️ Note: If you decide to repair headphones yourself, note that Xiaomi AirDots have adhesive body connection.