Why Xiaomi Headphones Stop Charging: A Complete Analysis of the Causes and Solutions

You put Xiaomi AirDots, Redmi Buds or Mi True Wireless in the case, connected to charging — and the indicator does not burn, the battery does not recover, and the headphones are discharged to zero? The problem with charging Xiaomi wireless headphones is common, but in 90% of cases it can be solved independently. In this article, we will analyze all possible causes — from banal contamination of contacts to failure of the power controller, and also give step-by-step instructions for diagnosis and repair.

It's important to understand that if the headphones don't respond to charging at all (no indication, not determined by the phone), this is one scenario. If they are partially charged (for example, only from the network, but not from the case), or the charge is extremely slow - these are other problems. We will consider all options, including the nuances for specific models (AirDots Pro 2, Buds 4 Pro, Mi Earphones Basic, etc.).

Before you take your device to the service center, check out 7 basics that users often miss.

1. Verification of power supply and cable

So, to start with the obvious, the charger and the cable, even if you're sure they're good, Xiaomi is sensitive to power quality.

• 🔌 Use an original cable (or a certified USB-Type-C). Cheap cables often don't provide stable voltage, especially for fast-charging models (e.g. Buds). 3T Pro).
• ⚡ The power supply should be at least 5W. For new models (AirDots 3 Pro) it is better to use an adapter on the 10W+.
• 🔄 Try another port. USB. Sometimes the port on your computer or powerbank doesn’t give enough current.
• 📱 Connect to another device (for example, to charge from a smartphone). If the headphones start charging, the problem is in the original power source.

Pay special attention to wireless charging (for models with support for Qi). If the case is not charged from a wireless station, but is normally charged from the cable, the problem is in the receiver coil or in the station itself. Try to put the case on another charge (for example, from a Xiaomi 13 smartphone), strictly in the center.

⚠️ Warning: If the case warms up when charging (especially wireless), immediately disable it! This is a sign of short circuit or controller malfunction!

2. Diagnosis of the case: why it does not transfer charge to headphones

If the case itself charges (the indicator burns), but does not charge the headphones, the problem lies in three nodes:

1. Case contacts (oxidation, pollution, mechanical damage).
2. Headphone contacts (similar problems).
3. Power controller inside the case (firmware failure or hardware breakdown).

How to check:

• 🔍 Look at the contacts in the case and on the headphones under the magnifying glass. Look for darkening (oxidation), scratches or plaque.
• 🧴 Clean the contacts with a cotton swab dipped in isopropyl alcohol (at least 90!
• 🔄 Change the headphones. If one is charging and the other is not, the problem is with the contacts of the particular headphone.
• 🔋 Check the voltage on the contacts of the case with a multimeter (should be) ~5V powered).

If the contacts are clean, but the charge does not go, try to reset the case:

1. Put both earphones in the case.
2. Connect the case to the charger.
3. Press the button on the case on 15-20 seconds (before the indicator flashes).
4. Turn off the charging, pull out and re-insert the headphones.

For AirDots 3 Pro and later, the reset is done via the Mi Home app: go to Device Settings → Reset.

3. Headphone battery problems

Lithium-polymer batteries in Xiaomi headphones are designed for 300-500 Then the capacity drops and the charging becomes unstable:

• ⚡ The headphones only charge until 80-90% and discharge quickly.
• ⏳ Charging is very slow (more than 2 hours to 100%).
• 🔄 Headphones spontaneously turn off at the level of charge 20-30%.
• 🔋 Case shows the charge of the headphones, but they do not turn on.

How to check the status of the battery:

1. Install the Mi Home or Xiaomi Wear app.
2. Connect the headphones and check the Battery Status section.
3. If the capacity is below 60% of the nominal capacity, the battery needs to be replaced.

For Redmi Buds 3 Pro and later, there is a hidden diagnostic menu:

1. Turn on the headphones.


2. Quickly press 5 times on the left earphone touchpad.




3.The voice assistant will announce the level of charge and battery status.

⚠️ Warning: If the headphones are swelling (as seen from the gap between the case and the case), stop using immediately! This is dangerous fire.

4. firmware failures and software errors

Xiaomi headphones are based on specialized chips (for example, Qualcomm). QCC3040 AirDots 3 Pro, which are run by firmware, and if the firmware crashes or gets damaged, it can block charging:

• 🔄 Headphones are endlessly rebooted in the case.
• 📵 Not determined by the phone, but the indicator on the case is burning.
• 🔊 Audible signals when turned on are distorted or absent.
• 🔋 The swelling is in the snag (i.e., no).

How to fix it:

1. Reset your headphones through the Mi Home app (Settings) → Reset).
2. If the reset didn’t help, try forced flashing: 1. Remove the headphones from the list of devices in Bluetooth. 2. Press the button on the case for 30 seconds (before flashing in red and blue). 3. Connect the case to the PC and use the Mi Flash Tool utility (see for firmware on the forum). 4PDA).
3. For Buds 4 Pro models, update the firmware through Xiaomi Wear Lite (Software Update section).

Attention! The wrong firmware can kill the headphones, and if you're not sure, call the service.

Mechanical damage and moisture

Xiaomi wireless headphones have a degree of protection IPX4 (Splash protection, but not waterproof, if the headphones or case were caught in rain, condensation, or dropped in water, it could cause a problem:

• 💧 Short circuit on the case board or headphones.
• 🔌 Oxidation of contacts (green / white coating).
• 🔋 Battery bloating (due to lithium reaction with water).

What to do:

1. If the ingress was recent (less than 24 hours): 🧊 Place the headphones and case in a silica gel (or rice) bag for 48 hours. 🔥 Do not dry with a hair dryer or on a battery – this will accelerate corrosion!

• 🛠️ Disassemble the case (carefully so as not to damage the plumes).
• 🧴 Clear the charge with isopropyl alcohol and brush.
• 🔍 Check for microcracks after falling.

If the headphones start to warm up or smell burns after getting moisture, throw them away immediately. The risk of fire is too high!

💡

To check if moisture has entered the inside of the case, put it on a dry napkin with contacts down for 10 minutes. If there are wet spots on the napkin, there is moisture, and the case needs to be dried.

Charging controller malfunctions

If all the previous steps didn't work, the problem could be the power controller, which is one of the most serious failures, because it requires soldering or a replacement board.

• 🔌 The case does not charge at all (even from different cables).
• 🔋 The indicator is burning, but the charge does not go to the headphones.
• 💥 The case warms or squeaks when connected to the charger.
• 🔄 The swelling is in the snag (i.e., no).

How to diagnose:

1. Disassemble the case (a plastic spatula and screwdriver will be required). T5).
2. Check the charge for the item: 🔥 Blackened or bloated elements. 💧 Traces of corrosion (green/white plaque). 🔌 Discontents (especially around the USB-port).

feed-in

Controller repair:

• 🛠️ If you have a contact, then sell it back (you need a soldering iron for it). 30W flux).
• 🔧 If the chip is burned, a replacement fee is required (in the service). ~1500-2500 ₽).
• 🔋 If the battery is a problem, replace it (cost) ~500-800 ₽).

Important: Self-repair board requires skills with soldering equipment, if they are not, you should contact the service.

💡

If the case is beeping when you connect to the charger, it's a sign of a short circuit in the controller.

7. Bluetooth and pairing problems

Sometimes Xiaomi headphones don't charge because they're stuck in pairing mode.

• 📱 Headphones were forcibly disconnected from the phone while charging.
• 🔄 There was a failure when updating the firmware through the air.
• 🔗 Headphones are connected to several devices at the same time.

How to fix it:

1. Remove the headphones from the list of Bluetooth devices on all gadgets.
2. Reset your headphones: For AirDots: press the button on the case on 10 seconds (until flashing in red and white). for Buds 3/4 Pro: Use Mi Home → Reset.

3 seconds

If the problem recurs, try turning off Bluetooth on your phone before charging your headphones, and sometimes protocol conflicts block the power controller.

8.When to contact the service center

If you have tried all the ways, but Xiaomi headphones are still not charging, it is time to contact the service.

• 🔥 Case board burned (apparently blackened elements).
• 💧 Short circuit after moisture is ingested.
• 🔋 The headphone battery swelled (seems by the deformation of the body).
• 🔧 Sloppy. USB-Case port (physical damage).
• 📵 Headphones are not defined by any device.

Where to fix:

Before the service visit:

• 📄 Take a check (if headphones are guaranteed).
• 📱 Take a screenshot of the errors (if any).
• 🔋 Check if your contacts are clean (the service may refuse warranties due to contamination).

Tip: If headphones are warranty, do not open the case yourself - this will cancel the warranty!

FAQ: Frequent questions