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Losing one headphone from the Xiaomi AirDots kit (or any other model in the series — Redmi AirDots, Mi True Wireless Earphones) is a bad situation, but it is not a hopeless situation. Even if you thoroughly searched all corners of the apartment and bags, do not rush to buy a new set: in 80% of cases, you can restore the headset with one surviving earphone.

In this article, we’ll look at all possible scenarios, from finding a lost module using the standard Mi Home features to buying a separate earphone and syncing it with the rest. We’ll focus on models with different connection protocols (for example, AirDots 3 Pro vs Redmi Buds 4), because the algorithms are different, and you’ll learn how to avoid the typical errors that lead to the final breakage of the headset.

If you lost your headphone less than an hour ago, start by searching Bluetooth. If more time has passed or you are sure that the module is lost irrevocably, go to the section about buying a replacement. For models that support Mi AI Assistant (for example, AirDots 3 Pro), there are separate life hacks - read on.

1. How to find a lost Xiaomi earphone: 4 ways

The first thing to do is to try to detect the headphone with built-in tools. Xiaomi has a few features to find gadgets, but their effectiveness depends on the model and version of the firmware.

Let’s start with the simplest method that works even without the Internet:

• 🔍 Search the last connection. Open Settings. → Bluetooth on your smartphone, find your AirDots on your list of devices and click on them. If the earphone is in range (up to 10 meters), the system will show the signal level.
• 📱 Mi Home. Launch the app, go to Devices → Headphones and select Find the Headphone.The feature is available for models with a Qualcomm chip QCC3040 (AirDots 3 Pro or Redmi Buds 4).
• 🎵 Sound signal. Mi Home can play loud sound on a lost earphone (if it's in Bluetooth range), which helps if the module falls under the sofa or in the bag.
• 🌍 Map of the last location. Some models (for example, Xiaomi FlipBuds Pro) store the coordinates of the last connection».

Important: If the headphone is drained (the battery is dead), none of the methods will work, in which case only visual search or purchase a replacement is left.

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If the headphone is lost on the street, try to return it through the Lost.xiaomi.com service.You need to know the IMEI of the device that is listed on the box or in the Mi Home settings.

2. Check the operability of the remaining headphone

Before you buy a new module, make sure that the surviving earpiece is in good working order. Often after the second module is lost, the first one starts to glitch or refuses to connect.

1. Reset the settings. Place the headphone in the case, close the lid and hold the button on the case for 15 seconds (for AirDots 2/3) or 10 seconds (for Redmi Buds).
2. Check the charge. Connect the case to charge for 30 minutes, then try to remove the earpiece. If the light doesn't burn, the battery or contacts are a problem.
3. Connection test. Try connecting the headphone to another device (tablet, laptop) If it's detectable, but the sound is only in one channel, the problem is synchronizing the pair.

Signs of malfunction:

• 🔴 The headphone does not turn on even after resetting.
• 🔴 The indicator flashes red for more than 30 seconds.
• 🔴 The device is defined as “Unknown” in the Bluetooth list.

⚠️ Warning: If the earphone makes a crack or hiss when connected, do not use it - this is a sign of damage to the speaker.

3. Can I use one headphone from a pair?

Technically, yes, but with reservations. All models of Xiaomi AirDots support Mono mode (single-channel sound), but there are nuances:

To activate Mono mode:

1. Remove the earphone from the case and hold the touchpad for 5 seconds (for AirDots 3) or 3 seconds (for Redmi Buds).
2. Connect it to your phone as a new device.
3. In Bluetooth settings, select the “Phone Call” (for conversations) or “Media Audio” (for music) profile.

Important: Mono significantly reduces battery life (by 30-40%), as one headphone takes over the entire load.

4.Where to buy one headphone for Xiaomi AirDots?

If the search is unsuccessful, you have to buy a replacement.

• 🛒 Original module from Xiaomi, sold in branded service centers or on AliExpress (search for "Xiaomi AirDots [model] single earbud"). Price: 1,500-3,000 ₽ model-wise.
• 🔧 Unoriginal (remark) Cheaper (from 500) ₽), But there are risks of incompatibility. Before buying, check with the seller the version of the chip (must match your model).
• 🔄 You can find it on Avito or Yula, check before you buy it, ask for a video of the demonstration of the connection.

How do you choose the right module? Pay attention to:

• 📌 Model and version. On the box or in the Mi Home, check the exact name (e.g. Redmi AirDots 2 (TWS) Mi True Wireless Earphones 2 Basic).
• 📌 Even in one model, there may be variations (white/black) and they are not always compatible.
• 📌 Check with the seller if the earphone supports the current version of your case software.

⚠️ Note: When buying a non-original headphone, there is a 60% chance that it won't sync with your case.This is because Xiaomi uses proprietary pairing protocols.

Clarify the model and version of the headphone|Check compatibility with the case|Ask for a video with a connection|Find out the terms of return-->

5. How to connect a new headphone to an old one?

If you buy a replacement, you need to sync it to the surviving module.

For models with a button on the case (AirDots 2, Redmi Buds 3):

1. Put both earbuds in the case.
2. Close the lid and hold the button for 20 seconds until the indicator flashes red and white.
3. Open the lid – the headphones should automatically mate (the indicator will turn white).
4. Connect the headset to your phone as a new device.

For touch-controlled models (AirDots 3 Pro, Buds 4):

1. Remove both earphones from the case.
2. Touch and hold the touchpads on both modules for 10 seconds until you hear the beep.
3. Place the headphones back in the case and close the lid for 5 seconds.
4. Open the lid – the indicator should burn white (successful synchronization).

If the headphones are not synchronized:

• 🔄 Try resetting the case settings: hold the button for 30 seconds (up to flashing red 3 times).
• 🔄 Update the case firmware through Mi Home (Section "Update Software»).
• 🔄 Check if the case is discharged (the indicator should burn green when connected to the charger).

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If the new headphone doesn't connect to the case, it's probably from a different version of the model, and then it's only going to help if you replace it with the original module.

6.How to avoid losing headphones in the future?

To avoid the problem again, use these tips:

• 🔗 Use a briefcase strap. Stick it to a backpack or a bunch of keys, so you don't forget the headphones.
• 📲 In Mi Home, set up alerts when the case charge is below 20%.
• 🎧 Buy carbine cases, like silicone AirDots cases with attachments to clothes.
• 🔍 In Mi Home, you can create a rule: if the headphones are more than 15 meters away from the phone, the signal will sound.

Also, you should pay attention to alternative models with a search function:

• 📍 Xiaomi FlipBuds Pro – supports accurate location through Mi AI Assistant.
• 📍 Redmi Buds 4 Active – has a built-in speaker for an audio signal when searching.

Preventive advice: Check the closure density of the case once a month, and over time, the mechanism may loosen up and the headphones will fall out unnoticed.

7. Frequent Questions About Lost Xiaomi Headphones