What to do if the headphone Xiaomi does not work: from a simple reboot to disassembly

You took out your favorite Xiaomi AirDots or Redmi Buds, you turned on the music, but there's only one headphone -- or none at all -- and this problem is familiar to many owners of the brand's wireless and wired headphones. The reasons range from simple battery discharge to hardware malfunctions. 80 percent of the time, the headphones are able to "resuscitate" themselves without the need of a service center.

In this article, we’ll look at all the possible reasons why Xiaomi’s headphone doesn’t work, from software failures to physical damage, how to diagnose a problem, what manipulations are worth trying first, and when it’s best to carry the device right away for repair. Special emphasis will be placed on models with frequent breakdowns: AirDots 2/3, Buds 3/4 Pro, FlipBuds Pro and wired Hybrid Pro. Also give recommendations on how to avoid repeated failures.

Before you start repairing, answer three key questions: 1. Is the problem manifesting itself in one earphone or both? 2. Headphones connect to the phone, but there is no sound - or are not detected at all? 3. Have there been mechanical stresses (falls, moisture, severe cable inflections)?

Answers will help narrow down the possible causes and save time: For example, if the right headphone Xiaomi AirDots 3 is not turned on, but the left one is working and is determined by the phone, 95% of cases are to blame for a dead battery or oxidized contacts of the charging case.

Basic inspections: what to do before repairs

Start with basic actions – often they solve the problem for you. 2-3 These steps are relevant to all models. Xiaomi/Redmi/Poco headphones, regardless of the type of connection (Bluetooth or wired).

The first thing to check is the source of the sound, connect the headphones to another device (smartphone, tablet, laptop), if the sound comes up, the problem is with the settings of the first gadget, if not, we look for the reason in the headphones themselves.

• 🔋 Charging the case and headphones, put both earphones in the case. 10-15 For wired models, check the integrity of the cable and connector.
• 🔄 Reboot. For wireless models: remove the headphones from the case, press the reset button (if any) on the 10-15 For wired, turn off/connect the connector.
• 📱 Reset Bluetooth settings. On your phone, remove your headphones from the list of associated devices (Settings) → Bluetooth → Xiaomi [model] → Forget the device. Then reconnect.
• 🎧 Test on another device. Try connecting your headphones to another smartphone or PC. If they work, the problem is with your gadget settings.

If you don't have sound after this manipulation, you can go to a deeper diagnosis. Note that for models with active noise cancellation (Buds 3 Pro, FlipBuds Pro) sometimes forced shutdown helps. ANC via Mi Home or Xiaomi Earphones.

2. Bluetooth connection problems: Headphones are not detected

If Xiaomi headphones don't appear in the list of available Bluetooth devices, the reasons could be both software and hardware.

Programmatic failures are most often associated with:

• 📲 Outdated firmware on headphones or smartphones, for example, AirDots 3 may not connect to phones on Android 10 and below due to protocol incompatibility.
• 🔄 Conflict with other Bluetooth devices: If more than 5 gadgets are connected to the phone, the system can "lose" headphones.
• 🛡️ Blocking from the OS. on some smartphones (especially Xiaomi with the MIUI) Power optimization works, which turns off Bluetooth in the background.

Hardware problems usually come down to:

• 🔋 Discharged battery (earphones are not turned on, so not visible for search).
• 📡 Damaged Bluetooth module in the headphone (most often after falling or getting moisture).
• 🔌 Oxidized contacts in the case (headphones are not charged, so they are not turned on).

For models with Mi Home support (such as Buds 3 Pro), try updating your firmware through the app:

1. Open Mi Home → find the headphones in the list of devices.
2. Go to Settings → Update firmware.
3. If a new version is available, install it.

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If Xiaomi headphones are connected but the sound is interrupted, try turning off the aptX codec or LDAC These codecs can cause stuttering on weak processors.

3.One earphone does not work: diagnosis and repair

One earphone is silent and the other is working, and it's one of the most common, and 60 percent of the time, it's the dead battery in the silent earphone, but there are other reasons.

Diagnostic algorithm:

1. Put both headphones in the case for charging (minimum 30 minutes).
2. Get and check the indicators: if one headphone does not flash LED - a problem with power.
3. Try connecting to your phone. If one headphone is not identified, reset the settings (press the button on the headset). 10-15 sack).
4. If there is no sound, but the headphone is connected, check the volume balance in the phone settings (Settings) → Sound. → Stereo balance).

For AirDots models 2/3 and Buds 3 It's a problem with the oxidation of contacts in the case, to fix it:

• 🧴 Wipe the contacts in the case and on headphones with a cotton swab dipped in isopropyl alcohol (do not use vodka or cologne!).
• 🔍 Check if the contact mustaches in the case are bent. If so, bend them carefully with a needle.
• 🔋 If the case does not charge the headphones, try connecting it to another cable / charge.

If the headphone is still not charging after cleaning the contacts, the battery or power controller is likely to fail, and only replacing the components at the service center will help.

• Replace the battery in one headphone — 800-1500 ₽.
• Replacement of the charging controller — 1000-2000 ₽.
• Repairs after moisture — 1500-3000 ₽ (depending on the degree of damage).

Put both earphones in the case for 30.+ minute|Check the charging indicators|Reset the settings (clamb the button)|Drinking contacts with alcohol|Check the volume balance in the phone settings-->

4.Sound problems: distortion, quiet sound, microphone

If Xiaomi headphones are connected but the sound is distorted, quiet or interrupted, the reasons may be as follows:

Active noise cancelling models (Buds 3 Pro, FlipBuds Pro) have a problem with hissing in silence. ANC-To eliminate the noise:

1. Open the Xiaomi Earphones app.
2. Go to the ANC Settings.
3. Turn off Adaptive Noise Reduction or reduce its intensity.

If the sound is quiet after the firmware update, try to roll back to the previous version (if you can in Mi Home). Also check if Safe Sound is activated in the phone settings - it limits the volume.

5. Repair after moisture hits: what to do if the headphones get wet

Water is one of the most dangerous situations for Xiaomi headphones, even if the model has protection by standard. IPX4 or IPX5 (For example, Buds 4 Pro, this does not guarantee 100% protection.

Immediate action if the headphones get wet:

1. Turn off the headphones (if they still work) and remove from the case.
2. Wash with a dry wipe all visible drops of water.
3. Put your headphones in a dry, warm place (not on the battery!) on 24-48 You can use silica gel (shoesbox bags) or rice (bury the headphones in a container of rice).
4. Do not turn on the headphones until completely dry!

What can't be done:

• ❌ Dry with a hair dryer – the flow of hot air can damage the speaker membrane.
• ❌ Put on a heater or battery - overheating is harmful to the battery.
• ❌ Try to turn on the headphones immediately after wetting.

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If the headphones do not turn on or malfunction after drying, do not try to disassemble them yourself! moisture could cause corrosion on the board, and without special equipment (ultrasonic bath, soldering station) they will not be repaired.

For touch-controlled models (FlipBuds Pro, Buds 4), moisture often leads to false positives (e.g., the headphones turn on/off music), which is due to the oxidation of the touch panel contacts, in which case only professional cleaning will help.

6.Shooting Xiaomi headphones: when it's justified

To disassemble headphones Xiaomi yourself is only in two cases: 1. You are confident in your skills with small electronics. 2. Headphones are no longer guaranteed, and you are ready to risk their final breakdown.

What you can fix yourself:

• 🔋 Battery replacement (if the headphone does not hold charge).
• 🔊 Cleaning the speaker from dust / dirt.
• 📶 Repair of Bluetooth antenna break (if the headphone connects only near the phone).

What's better not to touch:

• 🛠️ Replacement of microphone or speaker (requires soldering work).
• 🔧 Control board repair (without scheme and experience - short circuit risk).
• 💧 Elimination of the effects of moisture intake (ultrasonic cleaning is necessary).

You will need to disassemble:

• Plastic mediator or opener for smartphones.
• Thin screwdriver (cross-cross-haul, 0.8-1.0 mm).
• Tweezers and magnifiers (for working with small details).
• Thermoclay or superglue (for assembly).

Step-by-step instructions for Xiaomi AirDots 3:

1. Carefully put the mediator latch on the back cover of the headphone (their) 3-4 stuff).
2. Disconnect the battery (it's glued).
3. Check the integrity of the wires going from battery to board.
4. If the problem is in the battery - replace it with a similar one (you can order on AliExpress using the headphone model).
5. Collect the headphone in reverse order, gluing the latches with heat glue.

If the headphone does not turn on after disassembly, check:

• The polarity of the battery connection (plus/minus).
• Integrity of plumes (they can come off with a careless opening).
• Charging contacts (sometimes they bend when assembled).

7.When to contact the service: signs of serious breakdowns

Not all breakdowns can be repaired on their own, but there are a number of symptoms for which it is better to contact the service center immediately:

• 💦 After getting moisture, it took more than 48 hours, but the headphones do not work.

Average prices for repairs in service centers (2026):

Official Xiaomi service centers in Russia can be found on the website mi.com/ru/service/center. Please clarify before your visit:

• Do they have spare parts for your model?
• How much does the diagnosis cost (sometimes it is paid, 300-500 ₽).
• Is the warranty valid (for headphones - usually 12 months).

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If the headphones are warranty, DO NOT disassemble them yourself! Opening the case will void warranty obligations. Even if you carefully collect the headphones back, the service specialists will notice the autopsy marks.

8. Prevention: how to prolong the life of headphones Xiaomi

To avoid problems with Xiaomi headphones, follow the simple rules:

• 🔋 Charging: Do not keep your headphones on charging more 2-3 Use the original cable or certified cable (with Quick Charge support). 30-70% (Don't discharge to zero»).
• 💧 Moisture protection: Do not use headphones in the rain or in the bathroom (even if the model is not equipped with a slim headphone). IPX5). After training, wipe your headphones with a dry wipe (sweat contains salts that corrode the contacts).
• 🧴 Clean: Clean the speaker grid once in a while 1-2 Weeks with a soft brush, rub the case contacts with alcohol once a month.
• 📦 Storage: Keep your headphones in a case (don't throw them in a bag without protection). avoid overheating (don't leave them in the sun or near the battery).

For models with active noise cancellation (Buds 3 Pro, FlipBuds Pro) additionally:

• Turn it off. ANC, When not used, it prolongs the life of the battery.
• Update the firmware through Mi Home – new versions often fix bugs with sound.

If you use headphones for sports, consider buying a dust-proof case (like a silicone case for AirDots) that will prevent sand and dirt from getting into charging contacts.

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