Xiaomi AirDots wireless headphones (including the Redmi AirDots line) have become one of the most popular accessories due to the combination of price and quality. However, many users face the problem: after buying or resetting the settings, the left and right headphones stop working synchronously. One of the headphones may not connect to the phone, emit a latency sound or do not respond to on at all. The reason lies in the violation of pair synchronization between devices, a procedure that the manufacturer rarely describes in the instructions.
In this article, we’ll break down the three official ways Xiaomi AirDots pair headphones (including Redmi AirDots 2/3/Pro models), and how to diagnose common bugs. You’ll learn why headphones “disconnect,” how to return them to factory settings, and what to do if standard methods don’t work. All instructions are tested on current 2026 firmware versions.
Why Xiaomi AirDots headphones are “decoupling”?
The problem of mismatched left (L) and right (R) headphones occurs for several reasons:
- 🔋 One headphone battery is up to 0% (even if the other is charged) and the system automatically "forgets" the pair when the headphone is deep.
- 📱 Connecting to multiple devices at the same time (such as a smartphone and a laptop) Some AirDots models do not support multipoint.
- 🔄 Software failure after firmware update or incorrect disconnection from Bluetooth.
- 🎧 Mechanical damage to contacts in the case-charging (especially relevant for Redmi AirDots 3 Pro with magnetic fastening).
It is important to understand: Xiaomi AirDots uses TrueWireless technology, where the main headphone (usually the right one) acts as a bridge between the smartphone and the second headphone. If the communication between L and R is broken, the sound will be transmitted to only one device, and the second headphone will remain silent.
Method 1: Automatic pairing (for new headphones)
If you've just unpacked your headphones or reset them to factory settings, the system should sync them automatically.
- Place both headphones in the case and close the lid for 10 seconds.
- Get them out at the same time – the indicators on both should flash white (search mode).
- On your smartphone, turn on Bluetooth and find the Mi True Wireless or Redmi AirDots device (name depends on the model).
- Connect – after 5-10 seconds, both earphones should emit an audible synchronization signal.
The critical nuance is that if the light on one of the headphones flashes red, it means low charge or pairing error. Charge the headphones to 100% and repeat the procedure.
Charging the case > 30%|Both headphones are clean (no dirt on the contacts)|Bluetooth on your phone is disconnected from other devices|Headphones removed from the case at the same time-->
Method 2: Manual synchronization through reset
If the automatic method doesn't work, you'll need to force resets, which removes all the connections you've saved and returns the headphones to factory status, and is suitable for all Redmi AirDots models:
- Place both headphones in the case and close the lid.
- Press and hold the button on the case (located behind or below) for 15-20 seconds until the indicator flashes red and white.
- Get your headphones out – they should automatically enter pairing mode (blinking white light).
- Connect to them via Bluetooth on your phone.
On Redmi AirDots 3 Pro models, touch control: instead of a button on the case, use touching and holding the sensor on the right earphone for 10 seconds (until the beep).
What to do if the button on the cover does not respond?
Method 3: Flashing through Mi Earphones (for advanced users)
If standard methods don't work, the cause may be a damaged headphone firmware, in which case the official Mi Earphones app (available for Android and iOS) will help, allowing you to update the software and restore communication between the headphones.
Step-by-step:
- Install the Mi Earphones app from Google Play or the App Store.
- Connect to the phone only the right earphone (left should lie in the case).
- Open the app and wait for the “Update available” alert.
- Click “Update” and wait until the process is complete (don’t turn off the headphones!).
- After the update, remove the left earphone – it should automatically sync.
Warning: Don't interrupt the upgrade process! This can cause the headphones to fail completely. If the update has been stuck for more than 5 minutes during the Preparation phase, restart the phone and try again.
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If the Mi Earphones app doesn’t see the headphones, try connecting to them via the standard Bluetooth menu and then return to the app.
Table: Comparison of pairing methods
| Method | Suitable models | Implementation time | Difficulty | Efficiency |
|---|---|---|---|---|
| Automatic pairing | All models. | 1-2 minutes | ⭐ | 70% |
| Resetting through the cover button | Redmi AirDots 2/3, AirDots Pro | 3-5 minutes | ⭐⭐ | 90% |
| Reset via sensor (3 Pro) | Redmi AirDots 3 Pro | 2-3 minutes | ⭐⭐ | 95% |
| Update via Mi Earphones | All models (except clones) | 5-10 minutes | ⭐⭐⭐ | 99% |
Typical errors and their solutions
Even after successful pairing, users face problems, and here are the most common ones and ways to fix them:
- 🔊 The sound goes to only one earpiece: Reason: synchronization is broken. Solution: reset the headphones (see Method 2) and reconnect. If the problem persists, check the balance of the sound in the Bluetooth settings on your phone.
- 🔋 One earphone discharges faster: Reason: battery malfunction or constant connection search. Solution: Update firmware through Mi Earphones and calibrate the battery (discharge to 0% and charge to 100% 2-3 times).
- 📵 Headphones do not connect to the phone: Reason: conflict with other Bluetooth devices. Solution: delete all saved devices from the phone's memory (Settings) → Bluetooth → Forget the device) and reset the headphones.
⚠️ Warning: If the left earphone is still out of sync after all the manipulations, check it on another device (for example, on a laptop.
How can we avoid problems in the future?
To make sure that Xiaomi AirDots headphones don’t “disconnect” again, follow these guidelines:
- 🔌 Charge the case regularly - do not allow the discharge below 20%. Use the original cable USB-C (model 3/3 Pro).
- 📱 Don’t connect your headphones to multiple devices at the same time. Before reconnecting to another gadget, disconnect them from the current one.
- 🧹 Clean the contacts on headphones and in a case once a month with a cotton swab soaked in alcohol.
- 🔄 Update your firmware through Mi Earphones at least 1 time every 3 months.
If you use headphones with iPhone, keep in mind that Xiaomi AirDots are optimized for Android. On iOS, audio delays may occur - this is not a defect, but a feature of the interaction of Bluetooth protocols.
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Regular firmware updates via Mi Earphones reduce the risk of synchronization failures by 80%.