Why Xiaomi Headphones Don’t Connect to Your Phone via Bluetooth – Full Reasons and Solutions

Xiaomi’s wireless headphones are some of the most popular smartphone accessories, thanks to a combination of price, quality and functionality. But even proven models like Redmi AirDots, Mi True Wireless Earphones or Xiaomi Buds 4 sometimes have trouble connecting over Bluetooth. One earbud is not detected, the connection is constantly breaking, or the phone does not see the headset at all in the list of available devices.

If your Xiaomi headphones are no longer connected to your phone, don’t rush to blame the manufacturer or run to the service center. 90% of the time, the problem is solved software-just know where to look. In this article, we will analyze all possible causes - from banal (discharged battery) to exotic (firmware conflict), and also give step-by-step instructions for each situation. POCO, where specific bugs are often encountered.

Before you go into complex manipulations, answer two questions:

1. Have your headphones previously connected to this phone, or did the problem occur when you first paired?
2. Is the problem manifesting itself with only one device (for example, the left earphone is not working), or is the headset not defined entirely?

The answers are the algorithms of action. Now, the details.

Basic checks: what to do first

Start with the obvious. Most people miss out on basic things by spending hours looking for non-existent malfunctions. Here's a 5-point checklist to check before any reset or flash:

• 🔋 Headphones and case charge. Even if the light is green, try recharging the headset for 10 to 15 minutes. Sometimes the power controller crashes, and the actual charge is lower than it shows. LED.
• 📱 Bluetooth on your phone. Make sure the module is on (Settings) → Bluetooth, and that the phone is not in Airplane or Energy Saving mode (they can block the connection).
• 🔄 Reboot your devices. Turn off your headphones (press the button for 5-10 seconds), then restart your phone. This will reset the temporary errors in the Bluetooth stack.
• 📦 Headphone location. For the first connection, the headset must lie outside the case (if it is the case). TWS-Some models (e.g. Xiaomi Buds 3 Pro) do not activate pairing mode while in the case.
• 📵 Interference from other devices: Turn off Wi-Fi on your phone, turn off nearby routers or microwaves (they work at 2.4 GHz, like Bluetooth).

If after these manipulations, the headphones never appeared in the list of available devices, move to the next section. If the headset is detected but does not connect (for example, it says "Conjugation..."), the problem lies deeper - most likely in the settings of the phone or the firmware of the headphones.

2. reset Bluetooth settings on the phone

The MIUI operating system (especially in versions 12-14) is known for bugs with wireless connection management. If Xiaomi headphones previously connected to a phone but now refuse to do so, try resetting Bluetooth settings:

1. Open Settings → Bluetooth.
2. Shoot three points (⋮) in the upper right corner and select Clear cache (if no item - skip the step).
3. Go back to the basic settings, find Apps → Application Management.
4. In search, type Bluetooth, select the system application Bluetooth Settings.
5. Click Warehouse → Clear the data and confirm the action.

Once reset, the phone will forget all the previously coupled devices. Try reconnecting the headphones. If the problem persists, check if the connection is blocked by the power saving mode:

• 🔋 Go to Settings. → Battery and productivity → Energy saving regime.
• 🚫 Turn off the option to limit background activity for the Bluetooth app.
• 🔄 Enable high performance (if available).

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Some Xiaomi models (such as the Redmi Note 10 Pro) require a restart of the phone after resetting Bluetooth, otherwise the changes will not apply.

3. Headphone firmware problems

Xiaomi wireless headphones are minicomputers with their own firmware. If the headset suddenly stops connecting, the fault may be a software failure, especially for models that support Mi AI Assistant or LDAC (for example, Xiaomi Buds 4 Pro).

Signs of firmware problems:

• 🔴 Headphones flash red/blue, but do not go into pairing mode.
• 🎧 One earbud is connected, the second is not (often after updating).
• 🔊 The sound is interrupted, although the connection indicator is green.

Decisions:

1. Reset your headphones to factory settings: Put both earphones in the case. Press the button on the case for 15-20 seconds (before flashing red/white). Pull out the headphones - they should automatically go into pairing mode.

Firmware update

• Install Mi Earphones (for AirDots) or Xiaomi Earbuds (for Buds).
• Connect the headphones and check for updates in the Firmwer section.

Also check if dual audio (a function for connecting two pairs of headphones simultaneously) is active, and in MIUI, it can interfere with normal pairing:

• 🔊 Go to Settings. → Connected devices → Additionally. → Double audio.
• 🚫 Turn off the option if it is enabled.
• Test with another phone: Try connecting your headphones to a different brand (e.g. iPhone or Samsung) if the problem recurs, the headset malfunctions. ⚠️ Attention: If Xiaomi headphones fall into water or are subjected to heavy mechanical stress, do not try to disassemble them yourself. Inside a lithium battery, which can ignite if damaged. Contact the service center.The cost of repairing Xiaomi headphones in official services: 🔧 Replace the battery in one headphone: ~1 500–2 500 ₽. 🔊 Dynamic repairs: ~2 000–3 000 ₽. 🔄 Replacement of management fees: ~3 500–5 000 ₽ (7. Alternative ways of connecting If the standard Bluetooth connection is not working hard, try to get around the problem with alternative methods: 🎵 Developer Mode: Activate Developer Mode (7 times tap on Version) MIUI In Settings → The phone). Turn Bluetooth debugging into Settings → Additional → Developer. Reboot your phone and try to reconnect.
• 🔌 Connect via app: Install Mi Earphones or Xiaomi Earbuds from Google Play. In the app, select Add Device and follow the instructions.
• 📱 Using a second phone: You pair your headphones with another smartphone, then go back to the main one. Sometimes it wakes up the Bluetooth module. If Xiaomi headphones connect to other devices but not your phone, the problem is definitely the smartphone. In this case, only resetting or flashing will help. FAQ: My phone sees the headphones, but when you connect it says "Pairing error." What to do? This error is usually associated with a conflict of Bluetooth profiles. Try: Remove the headphones from the list of devices. Turn on the phone's flight mode for 30 seconds, then turn off. Reconnect the headphones by manually selecting the profile A2DP (If the phone offers a choice, reset the network settings on the phone if it doesn't help (Settings) → System system → Reset settings. One earphone plugs in and the other doesn't. How to sync them? For Xiaomi models with independent connection (e.g. Redmi AirDots 3): Put both headphones in the case. Press the button on the case for 15 seconds (until flashing white). If it doesn't work, one of the headphones is faulty (most often the battery or Bluetooth module is to blame). Xiaomi headphones are connected, but the sound is late. How do I fix it? Sound delay (lag) is typical for cheap phones. TWS-headphones when watching videos. Solutions: 🎬 Turn on the game mode in the headphone settings (if any). 📱 Turn off absolute volume in Settings → For developers. 🔄 Switch the codec to SBC (In Bluetooth settings → Additionally. → If the lag only appears in certain apps (like YouTube), the problem is, try clearing the app's cache. Can you connect Xiaomi headphones to your iPhone? Yes, but with reservations: ✅ Standard Connection through Settings → Bluetooth is working. ❌ Functions like Mi. AI assistant LDAC will not be available. ⚠️ Your iPhone may not display the charge level of your headphones. Use your Android device to work properly. MIUI The headphones stopped plugging in. What do we do? MIUI You can often break the Bluetooth stack. Try: Reverse to the previous firmware version through Settings. → The phone. → Updating the system → Three points. → Select the service pack. If you can't roll back, reset your phone (remember to save the data!). Check the forums (e.g., check the phone's settings, 4PDA) If you want to see if there are patches for your model, wait until the next update is available, and Bluetooth bugs usually get fixed within 1-2 weeks.