Why Xiaomi AirDots doesn’t work: 12 reasons and how to fix it

You took out the Xiaomi AirDots case, turned on your favorite playlist, and suddenly you found that the sound comes from only one headphone, a situation familiar to many owners of wireless headsets of the brand. The problem can manifest itself on any model, from budget AirDots Youth to flagship AirDots Pro 3. 80% of the time, the malfunction is resolved on its own in 5-15 minutes, but sometimes requires deep diagnosis or even repair.

In this article, we will analyze all possible reasons why one headphone Xiaomi AirDots stopped working – from the banal discharge of the battery to hardware breakdowns. You will receive step-by-step instructions with photos, a firmware compatibility table, and tips on how to prevent a recurrence of the problem. SE, where faults are often associated with features of the firmware MIUI Bluetooth.

If you're in a hurry, use the FAQ at the end of the article, which contains answers to the most common questions, and for the rest of us, let's start with the basics: how to determine whether the problem is in the headphone, case, smartphone or firmware.

1. Diagnosis: how to determine the cause of a malfunction

Before you disassemble the earbud or reset the settings, you need to localize the problem, and here's a validation algorithm that will help narrow down the possible causes:

1. Check the charge of the case and the headphones. Connect the case to charge for 10 minutes, then pull out the headphones and look at the indicators. If one of them doesn't blink, the problem is in the contacts or the battery.
2. Connect your headphones to another device (tablet, laptop, second smartphone), and if both headphones are working on the second device, it's your phone's Bluetooth module that's to blame.
3. Change the headphones. Take both of them out of the case, put them on the table and wait for the automatic connection. If the left earphone doesn't connect, the problem is that. If the right one, check the settings of the smartphone (in some firmware, the right earphone can be "lead").
4. Reset your headphone settings through the Mi Home app or manually (instruction below) to help eliminate software failures.

If you've had a problem after this manipulation, go to the next section. If the headphone is running, 95 percent of the time, it was a dead battery or a temporary Bluetooth connection failure.

2. Software failures: reset and flashing

About 40 percent of calls to service centers for a dumb earphone are solved by resetting or updating the firmware.

Resetting settings through the Mi Home app

This method works for all models except the 1st generation AirDots (they require manual reset).

1. Open the Mi Home app and go to Profile → My Devices → Xiaomi Headphones.
2. Click on the three dots in the top right corner and select Reset Settings.
3. Confirm the action and wait for the process to be completed (earphones should flash red and white).
4. Remove the device from the list of conjugated in the Bluetooth settings of the smartphone and connect again.

If the app doesn’t see the headphones or the reset doesn’t help, try manual reset:

• 🔋 Take both headphones out of the case and keep them close by.
• 🎧 Press and hold the touchpads on both headphones simultaneously for 15-20 seconds until the indicators start flashing red and white.
• 📱 Remove the device from Bluetooth memory on your smartphone and connect again.

Firmware update

Outdated firmware can cause conflicts with Bluetooth 5.2+ on new smartphones.

1. Connect the headphones to the Mi Home app.
2. Go to the device settings → Update the firmware.
3. If a new version is available, click Update and wait until it is completed (don’t turn off the headphones!).

⚠️ Warning: If during a firmware update, the headphones become depleted or lose touch with the phone, they can turn into a "brick." Always update when the case is charged. >50% and a stable internet connection.

3. Hardware problems: what breaks physically

If the software methods didn't work, the problem could be the hardware, and here are the most common hardware malfunctions.

• 🔋 Battery discharged or bloated: Xiaomi AirDots headphones use 40-60 mAh lithium polymer batteries. In 2-3 years, they lose up to 50% of capacity, and one of the headphones may shut down due to lack of voltage.
• 🎛️ Contact oxidation: Moisture or sweat during exercise causes contact areas to corrosion in the case or on headphones, which disrupts charging and communication between devices.
• 📡 Bluetooth antenna damage, more common after falls or heavy impacts, manifested as a complete lack of communication of one earphone with a case.
• 🔊 If the earphone is plugged in, but there's no sound, maybe the membrane is torn or the plume has gone.

How to diagnose a hardware breakdown:

1. Check the contacts, take a magnifying glass and look at the metal plates on the headphones and in the case, and the oxidation looks like green or white coating.
2. Call the battery: if you have a multimeter, measure the voltage on the contacts of the headphone. Normally - 3.7-4.2 V. If less than 3.0 V - the battery needs to be replaced.
3. Connection test: Put a broken earphone in the case and see if it makes a sound when the lid is closed, and if you don't click, it could indicate that the Hall sensor is malfunctioning.

⚠️ Attention: Disassembling Xiaomi AirDots headphones requires soldering iron and microscope skills, batteries soldered to the board, and speaker plumes thinner than a hair. Inept repairs can completely disable the device.

4. Case problems: why the earphone doesn't charge

The case in Xiaomi AirDots is not only a case, but also a charging station with its own battery. If one earphone does not charge in the case, the reasons may be as follows:

• 🔌 Contamination of contacts in the nests of the case, dust, pile or oxidation interfere with the transmission of current.
• 🔋 The battery cells are unbalanced, and over time, the capacity of the individual cans decreases unevenly, and the case gives current to only one headphone.
• 🤖 Charging controller failure: The circuit that controls the power distribution can freeze and block charging of one of the nests.
• 🧲 Magnet problems. In a case, neodymium magnets are used to fix the headphones, and if they're demagnetized or moved, the contacts don't touch.

How to fix the case:

1. Contact cleaning: Take a cotton swab, moisten it in alcohol, and gently wipe the metal pads in the case nests and on headphones. Use a toothpick for hard-to-reach areas.
2. Reboot the controller: completely discharge the case (wait until the indicator goes out), then charge it 100% and reset the headphones.
3. Battery calibration: If the case shows 100% charge, but does not charge the headphones, perform 3 full discharge / charging cycles.

If the case still doesn't charge one headphone, try swapping them. If the problem moves to another socket, it's the case. If it stays on the same headphone, it's the problem.

💡

To extend the life of the battery case, avoid keeping it on charge for more than 12 hours.The optimal mode is to charge up to 80-90% and do not allow a full discharge below 10%.

5. Conflicts with the smartphone: settings Android and iOS

Sometimes the problem isn’t with the headphones, but with the phone’s settings, especially for Android 12+ and iOS 15+ devices, where new Bluetooth control algorithms have emerged.

Problems with Android

Owners of smartphones Xiaomi, Samsung and Realme often face the following bugs:

• 🤖 Battery optimization. The system can force Bluetooth to be turned off to save power. To fix: Go to Settings → Annexes → Application management → Bluetooth, select the battery. → Battery Optimization: Find Xiaomi AirDots on the list and turn off optimization.

Mono-audio

MIUI 14

Settings → Special facilities → Audio mono

Conflict with other devices

Problems with iPhone

On iOS, the most common are:

• 🍎 Automatic audio switching. AirPlay can redirect audio to the phone speaker. Turn it off in Settings. → Bluetooth → (i) near AirDots → Connect to this iPhone (select "Automatically").
• 🔄 Network resets. Sometimes a full reset of Bluetooth and Wi-Fi helps: Settings → Mainstream → Removing or resetting iPhone → Reset → Reset the network settings.

💡

If one headphone works normally when connected to another phone, the problem is precisely in the settings of your smartphone, not in the headset.

6.Moisture and mechanical damage: what to do after a fall or rain

Xiaomi AirDots have IPX4 protection (except for AirDots Pro 3 with IP54), but that doesn’t mean they’re completely waterproof.

If the headphone stopped working after:

• 🌧️ Rain or snow – moisture could penetrate through a microphone hole or gap between the case and the touchpad.
• 💦 Sweating during exercise – salt sweat corrodes contacts faster than fresh water.
• 🚿 Falls in water (even for a short time) – in this case, the chances of recovery are minimal.