Why Xiaomi’s Wireless Headphone Doesn’t Turn on: Diagnostics and Repairs

Why one headphone Xiaomi refuses to turn on: solve the problem

You pulled Xiaomi's wireless headphones out of your case, but one of them stubbornly doesn't respond to presses, doesn't flash the indicator, and doesn't connect to the phone? This problem is familiar to many owners of Redmi AirDots, Mi True Wireless or Xiaomi Buds. Software failures are at fault 70% of the time, but sometimes hardware malfunctions - from oxidized contacts to a discharged battery.

In this article, we have systematized all the possible reasons why one Xiaomi earphone does not turn on, and collected proven solutions - from a basic reboot to disassembling the case. You will learn how to distinguish a software glitch from a board break, when you carry headphones into the service, and when you can handle yourself. For convenience, we added a table of compatibility of repair methods with specific models and an interactive survey to clarify your situation.

1. Checking the obvious: charging and mechanical damage

Before you dig deeper, rule out the underlying causes. Start by visually inspecting a broken earpiece:

• 🔋 Case and headphone charge: put both earphones in the case for 10-15 minutes. The indicator on the case should flash or burn (depending on the model). If the indicator does not respond, the problem may be in the connector. USB-C case-case.
• 🔌 Headphone contacts: Take a flashlight and inspect the metal contacts on the back of the earphone (where it comes into contact with the case). Oxidation, dirt or deformation is a common cause of not charging.
• 💧 Moisture and corrosion: If your headphones were in the rain or you were exercising in them, moisture could get inside, which would require drying in rice (24 hours) or using silica gel.

If the headphone is physically damaged (cracks on the body, dents), most likely there was a break in the internal wires or damage to the board, in which case self-repair is not recommended, it is better to contact the service center.

2. Resetting: a universal way for most models

If the headphone doesn’t have any visible damage but doesn’t turn on, try resetting it first.This method works for most Xiaomi models, including the Redmi AirDots 2/3, Mi True Wireless Earphones 2 and Xiaomi Buds 4.

Resetting instructions:

1. Put both headphones in the case and close the lid.
2. Open the case cover and hold the button on the case (usually located on the side or back) for 10-15 seconds.
3. The indicator on the case should flash red and white (or orange and blue depending on the model), this is a signal of a successful reset.
4. Take the headphones out of the case and try to connect them again.

If the reset didn’t help, try an alternative method for touch-controlled headphones:

• 👆 Hold the touchpad on a broken earphone for 20-30 seconds.
• 🔄 Repeat trying to connect via Bluetooth.

3. firmware problems: how to reflash the Xiaomi headphone

Sometimes one earphone will stop turning on after a failed firmware update or conflict with the phone, in which case forced flashing through the official Mi Home or Xiaomi Wear app will help.

Step-by-step:

1. Install the Mi Home app (for Android) or Xiaomi Wear (for iOS).
2. Connect the working headphone to the phone via Bluetooth.
3. In the application, find the Devices section → Headphones → Update of firmware.
4. If an update is available, run it. Do not turn off the headphones until the process is complete (it can take up to 10 minutes).

If the app doesn't see headphones, try:

• 📱 Remove headphones from the list of conjugated devices in the Bluetooth settings of the phone.
• 🔄 Reboot the phone and reconnect.
• 🌐 Change the region in Mi Home to China (sometimes updates only appear there).

4. Battery malfunctions: how to check and restore

If the headphone doesn’t charge or discharges in a few minutes, the problem is most likely the battery. Xiaomi’s wireless headphones are equipped with 40-60 mAh lithium polymer batteries that lose capacity after 300-500 charging cycles.

Signs of a faulty battery:

• 🔋 The headphone does not hold a charge (discharges in 10-20 minutes).
• ⚡ The charging indicator flashes red and goes out.
• 🔌 The headphone heats up during charging.

What can be done:

1. Calibration of the battery: Discharge the headphone until it is completely turned off. Put it in the case and charge for 2-3 hours (even if the indicator is 100%). Repeat the cycle 2-3 times.
2. Battery replacement (power users only!): Xiaomi headphone batteries can be found on AliExpress or in service centers. Replacement will require a soldering iron and microelectronics skills.

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If the earphone is not charging, try cleaning the contacts of the case and the earpiece with a cotton swab dipped in alcohol. Metal oxidation is one of the most common causes of poor contact.

5. Hardware breakdowns: when without service can not do

If none of these methods worked, it's probably a hardware problem, and here are the most common breakdowns.

If you suspect a hardware failure but are not sure of its nature, take apart the headphone (neatly tucking the case with a plastic card) and inspect the board. Blackened elements, swollen capacitors or burned tracks are a sure sign that the earphone needs professional repair.

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Self-repair of hardware breakdowns is justified only if you have experience with a soldering iron and multimeter, otherwise the risk of permanently disabling the headphones exceeds 80%.

6 Compatibility issues: Why the headphone doesn't work with your phone

Sometimes one Xiaomi earphone doesn’t turn on or connect due to a phone incompatibility, which is true for older headphone models (like Redmi AirDots 1) or phones with older Bluetooth versions.

Check the following points:

• 📱 Bluetooth version on the phone: Xiaomi headphones require Bluetooth 4.2 or later. You can find out the version in the phone settings (About the phone) → Bluetooth version).
• 🔄 Compatibility Mode: Some phones (especially Samsung or iPhone) can block Xiaomi headphones.
• 🛠️ Developer Settings: On Android, enable Bluetooth Debugging in the Developer Menu (Settings) → The phone. → Assembly number (press 7 times) → Developer settings).

If compatibility is a problem, try updating your phone’s firmware or using headphones with another device (tablet, laptop).

7. Alternative ways: what to do if nothing helps

If you’ve tried all the methods, but one Xiaomi headphone still doesn’t turn on, there are still radical measures:

• 🔧 Contact soldering: If the earpiece is not charged due to oxidized or soldered contacts, they can be soldered back gently.
• 🔄 Firmware through PC: Some models (for example, Xiaomi Buds 3 Pro) can be flashed through your computer using the Mi Flash Tool utility. 4PDA or XDA Developers.
• 🛒 Replacement of headphones under warranty: if the headphones are warranty (usually 12 months), contact the official Xiaomi service.

If the headphones are no longer warranty and repairs cost more than half their cost, it makes sense to consider buying new ones, such as the Xiaomi Buds 4 or Redmi Buds 4 Pro offer improved connection stability and moisture protection.

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Before buying new headphones, check them for compatibility with your phone. For example, headphones with Bluetooth 5.3 support may not work properly with older Bluetooth 4.0 smartphones.

FAQ: Frequent questions about Xiaomi headphones that don't work