One Xiaomi AirDots headphone does not charge: full repair instructions

You took Xiaomi AirDots out of your case, and one earbud is dead or not responding to charging? This problem is familiar to many wireless headphone owners — according to service center statistics, 30% of warranty calls are due to a malfunction of one of the headphones. Most often, contaminated contacts, battery imbalances or software failures are to blame, but sometimes the cause lies deeper — damage to the power controller or wear of the battery.

In this article, we will discuss all the possible reasons why one Xiaomi AirDots earphone does not charge (including AirDots Pro 2, AirDots 3, Redmi AirDots and others), as well as give step-by-step instructions with photos and videos how to bring the earbud back to life - from basic cleaning to flashing. If you do not want to waste time on a service center or buy new headphones, read on.

1. Checking for obvious causes: case, cable and power supply

Before you disassemble your headphones or reset your settings, eliminate the underlying faults that are often overlooked. Start by diagnosing the charging case, which is 40% of the time to blame for the problem.

Connect the case to the charger and pay attention to the indicator:

• 🔴 Red is burning - the case is charged, but the headphones may not contact the connectors.
• 🟢 Green is burning – the case is fully charged, but this does not guarantee the performance of contacts.
• ⚫ Nothing burns - the problem is in the cable, connector USB-C or the case itself.

Try alternative ways of charging:

• 🔌 Connect the case to another charger (preferably the original one on the 5V/1A).
• 📱 Use a smartphone charger or power bank.
• 🔄 Turn over the headphones in the case – sometimes the contacts do not match due to mechanical displacement.

⚠️ Note: If the case is not charged at all (even when connected to a PC), the problem may be in the power controller or damaged battery of the case, in which case you will need to disassemble and replace the elements.

Contact Cleanup: Why It Works 60% of the Time

The main reason why one Xiaomi AirDots earphone doesn't charge is oxidation or contamination of contacts. Over time, dust, sweat, residues of cosmetics accumulate on metal sites (if you wear headphones while exercising), which disrupts current conductivity. Even a microscopic layer of dirt can block charging.

You'll need:

• 🧴 Cotton swabs (preferably wooden, without plastic rods).
• 💧 Alcohol (isopropyl 90%+ ordinary).
• 🔍 Loop or flashlight (to inspect contacts).

Wet the cotton swab in alcohol and squeeze off the excess liquid |

Gently wipe the contacts on the headphone (3-4 circular movements)|

Clear contacts in the case (especially if black or green spots are visible)|

Let me dry. 10-15 minutes (do not use a hair dryer!)|

Check the charging after full drying-->

If the contacts are highly oxidized (a green coating appears), use an eraser for mechanical cleaning:

1. In light movements, rub the contacts with washing gum.
2. Remove the crumbs with a dry cotton swab.
3. Treat it with alcohol to remove the residues.

3. Resetting headphone settings: when software reset helps

If cleaning the contacts didn't help, the problem could be a software-based headphone failure, especially for AirDots Pro 2 and AirDots 3 models, which use a complex headphone synchronization system, resetting the headphones back to factory settings and often solves the charging problem.

Resetting instructions:

1. Put both headphones in the case and close the lid.
2. Press and hold the button on the case for 15-20 seconds (the indicator should flash red, then white).
3. Open the lid and wait until the headphones start flashing red and white (pairing mode).
4. Connect the headphones to the phone again via Bluetooth.

For Redmi AirDots and AirDots Youth Edition, the process is slightly different:

1. Get the headphones out of the case.


2. Press the touch panels on both headphones for 10 seconds.




3. Place them back in the case and close the lid for 30 seconds.

⚠️ Warning: After reset, the headphones may lose communication with each other. If one earphone stops connecting to another, repeat the reset procedure again or use the Mi Home app for forced synchronization.

4. Battery Diagnosis: How to Check Battery Wear

The average battery life of Xiaomi AirDots is 2-3 years (or 300-500 full charge cycles). If the headphone has been in use longer, the problem may be battery degradation.

If the battery is worn out, there are two options:

• 🔧 Replacement of the battery - in the service center (cost) ~1000-1500 ₽) Or on your own (you need a soldering iron and a new battery).
• 🆕 Buying a new headphone – if the model is outdated, it is sometimes cheaper to buy a new set.

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If the earphone discharges in a few minutes but charges normally, the problem may be the power controller, not the battery, in which case only repairs at the service center will help.

5.Sync problems: why one earphone "falls off"

Sometimes the earphone will not charge due to loss of connection to the case.

• 📱 The headphone was connected to another device (for example, a laptop or tablet).
• 🔄 There was a firmware failure after the update.
• 🎧 Headphones were discharged to zero and lay for a long time without use.

To restore synchronization:

1. Remove the headphones from the list of Bluetooth devices on all gadgets.
2. Put both headphones in the case and close the lid for 1 minute.
3. Pull them out and hold the touch buttons on both headphones for 10 seconds until the red light flashes.
4. Place the headphones back in the case – they should sync automatically (the indicator will turn white).

If sync is not restored, try forced pairing through the Mi Home app:

1. Open the app and go to Profile → My devices.
2. Click on Xiaomi AirDots and select Reset Settings.
3. Follow the instructions on the screen to reconnect.

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If one headphone connects to the phone and the other doesn't, the problem is synchronization between the headphones, not charging, in which case resetting through the Mi Home solves the problem 90% of the time.

Mechanical damage: what to do if the earphone fell or wet

If the Xiaomi AirDots earphone stopped charging after falling, hitting or getting moisture, the charging controller or power connector is likely damaged, in which case disassembly will be required.

Signs of mechanical damage:

• 💥 Cracks on the body or chips near the contacts.
• 💦 Corrosion traces (white or green plaque) inside the connector.
• 🔊 Extraneous sounds (crunch, creak) when connected to the case.

What you can do on your own:

• 🔧 Disassembling the headphone requires skills and tools (plastic mediator, tweezers, hair dryers.
• 🔥 Drying – if the earpiece is wet, put it in rice or silica gel for 24 hours (do not use a hair dryer!).
• 🛠️ Replacement of the connector - if the contacts are severed, they can be soldered again (a soldering station is required).

⚠️ Attention: Disassembly of headphones Xiaomi AirDots voids warranty! If the device is warranty, contact the service center. Self-repair is recommended only for models over 2 years old.

7.When to contact the service: signs of a controller malfunction

If none of the above methods helped, the problem is likely to be a hardware malfunction:

• 🔋 Charging controller – manages the process of supplying current to the battery.
• 🔌 Protection chip – prevents overcharging, but can block charging when a failure occurs.
• 📶 Bluetooth antenna – if damaged, the earphone will not sync with the case.

Signs that you need a professional diagnosis:

• The headphone does not respond to charging and does not turn on.
• The indicator flashes a non-standard color (for example, blue or purple).
• When connected to the case, a characteristic smell of burning is heard.
• The earpiece heats up to a painful temperature when trying to charge.

Cost of repairs in service centers:

If the headphones are warranty, repairs will be free, provided the damage is not mechanical. Use the Mi Warranty Check website to check the warranty status (you will need a serial number from the box).

FAQ: Frequent questions about charging Xiaomi AirDots