Have you taken out a new wireless headphone, turned on Bluetooth on Xiaomi, but the devices stubbornly do not want to connect? or suddenly stopped working already familiar AirDots, Redmi Buds or headphones of another brand? The problem with Bluetooth connection is one of the most common among owners of Xiaomi, Redmi and smartphones. POCO. The reasons can lie in both software failures and hardware malfunctions.
In this article, weโll look at all the possible scenarios why headphones donโt connect to your phone via Bluetooth, from commonplace user errors to hidden settings. MIUI. You will receive step-by-step instructions with illustrations, a table of device compatibility, as well as answers to frequent questions. MIUI 14 and newer where the connection algorithm has changed.
Don't rush your phone to the service center, because you can solve it yourself in about 90 percent of the time in 5 to 10 minutes, and let's start with the simplest methods and gradually move on to the more complex ones.
1. Checking basic settings: 5 steps before diagnosis
Before digging deep into the settings, make sure you don't miss the obvious. Here's the minimum checklist you should go through before any manipulation:
Run the headphones in pairing mode (usually hold the power button for 3-5 seconds)
Make sure Bluetooth is turned on on on your phone (the icon in the notification panel)
Check the headphone charge (discharged devices may not appear in the list)
Disconnect headphones from other devices (laptop, tablet, smart watch)
Reboot your smartphone (hold the power button and select Reboot")-->
If the headphones were already connected but don't work now, try removing them from the list of associated devices and adding them again.
- Open Settings โ Bluetooth.
- Find your headphones in the list and tap the gear (โ๏ธ) near-name.
- Choose to Delete this device or Forget it.
- Return the headphones to pairing mode and try to connect again.
On Xiaomi MIUI 14+ The hidden function of resetting the Bluetooth module can work:
##232338##Once you enter this code, the Bluetooth test menu will open. Select Bluetooth Test. โ Reset Bluetooth.Warning: This will remove all stored devices!
Redmi Buds / AirDots
Other Xiaomi wireless headphones
Samsung/Sony headphones / JBL
Apple AirPods
Another brand-->
2. Programmatic failures MIUI: How to fix without resetting
Operating envelope MIUI It's known for its chips, but sometimes they interfere with normal work. If the headphones don't connect to Xiaomi, and other phones work, the problem is probably the software:
Clearing the Bluetooth cache
The cache that's clogged can block new connections to clear it.
- Go to Settings โ Applications โ Application Management.
- Put three points on it (โฎ) in the upper right corner and select Show all processes.
- Find Bluetooth in the list, open it.
- Click Clear Cache and Clear Data (this will remove all associated devices!).
Disable the function "Dual Audio" (Dual Audio)
V MIUI 12+ There's a feature that's used to connect two devices to Bluetooth at the same time, but it often conflicts with headphones to turn it off:
- Go to Settings โ Connections and Sharing โ Bluetooth.
- Put three points on it (โฎ) โ Additionally.
- Turn off the option of dual audio.
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If after cleaning the cache, the headphones still do not connect, try to turn on the Developer Mode and manually change the version of the Bluetooth protocol to the one that is used for the first time. AVRCP 1.6 (in the Developer Settings menu) โ Bluetooth settings A2DP).
2.3 Resetting network settings
This method helps if the problem affects not only Bluetooth, but also Wi-Fi or mobile network.
- Open the Settings. โ The phone.
- Tap 7 times on the MIUI version to activate Developer Mode.
- Return to Settings โ Additional โ Resetting settings.
- Select Network Resetting.
If none of the methods worked, move on to the next section โ perhaps the problem lies deeper.
3. Hardware problems: when the phone or headphones are to blame
If the software methods didn't work, you should check the physical condition of the devices.
- ๐ Battery discharge: even if the indicator is on, try charging the headphones for 10-15 minutes.Some models (for example, Redmi Buds 3 Pro) do not turn on at a charge level below 5%.
- ๐ง Moisture: If your headphones get wet, dry them for at least 24 hours in rice or silica gel!
- ๐ Contact problems: Clean the metal contacts in the case and on the headphones with an alcohol wipe.Oxidation can block charging and connection.
- ๐ง Mechanical damage: check if the pin antenna is bent (in some models it is hidden under a rubber plug).
Now let's check the smartphone:
- ๐ฑ The Bluetooth module is damaged: if the phone fell or got wet, the module could move away from the board.
- ๐ Conflict with SIM-Map: on some Xiaomi models (for example, Redmi Note 10 Pro) Bluetooth and SIM They share one antenna. SIM-map and check the connection.
- ๐ Battery savings: in the Battery settings โ Charge saving can be activated mode disabling Bluetooth in the background.
How to check the Bluetooth module for hardware damage?
4 Device compatibility: Why some headphones don't work with Xiaomi
Not all wireless headphones work equally well with Xiaomi, because different manufacturers use different protocols and codecs (for example, for example, the same type of headphones, SBC, AAC, aptX, LDAC). If the headphones and phone donโt support a shared codec, the connection will be unstable or impossible.
Here is the table of compatibility of popular headphones with Xiaomi (based on the MIUI 14):
| Model headphones | Support for MIUI 14 | Recommended codec | Frequent problems |
|---|---|---|---|
| Redmi Buds 4 / AirDots 3 | โ Complete. | AAC | Sound delays in games |
| Apple AirPods (all models) | โ ๏ธ Partial | AAC | Low sound quality, cliffs |
| Sony WH-1000XM4 | โ Complete. | LDAC or AAC | Fast battery discharge |
| JBL Live 660NC | โ Complete. | aptX | Mikphone problems |
| Samsung Galaxy Buds | โ ๏ธ Partial | SBC | Unstable connection |
If your headphones are not on this list, check their specifications on the manufacturer's website.
- ๐ Apple headphones (due to proprietary chip) W1/H1, optimized for iPhone).
- ๐ต Headphones with aptX Adaptive support (e.g. Sony) WH-1000XM5) โ demand MIUI 13+.
- ๐ Cheap headphones without Bluetooth certification SIG (may conflict with MIUI).
Solutions for incompatible models:
- Update your phone to the latest version (see section 5).
- Manually select the codec in the developer settings (Settings) โ Additionally. โ For developers โ Bluetooth codec).
- Use Bluetooth 5.0 adapter (e.g. Avantek) BTA-200), If headphones are critical.
5. Firmware Update: Why it's important for Bluetooth
MIUI It regularly updates Bluetooth stacks, fixing compatibility bugs and adding support for new codecs. If your Xiaomi hasn't updated in a long time, this could be causing problems:
- Open Settings โ About the phone โ System update.
- Click Check for updates.
- If a new version is available, download and install it. Warning: charge your phone to at least 50% before upgrading!
If the update doesn't work or doesn't, you can try hand-held firmware via Fastboot or Recovery, but it's risky -- if you make a mistake, the phone can turn into a brick.
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On Xiaomi MIUI 14+ Bluetooth FastConnect has been introduced, which speeds up connectivity, but sometimes conflicts with older headphones. To turn it off, go to Settings. โ Connections โ Bluetooth โ Additionally and deactivate the option.
If Bluetooth has stopped working after the update, roll back to the previous version. MIUI recover:
1. Download the desired firmware version from the Xiaomi Firmware website.
2. Rename the file to update.zip and place it in the root of the phone's memory.
3. Enter Recovery (turn off the phone, then press Power + Volume up).
4. Select Install update.zip.6. Hidden settings MIUI: what interferes with connection
V MIUI There are a few hidden features that can block Bluetooth connectivity, which you can't see in standard settings, but they're actively affecting wireless devices.
Limitation of background activity
MIUI aggressively shuts down background processes, including Bluetooth, to fix it:
- Open Settings โ Applications โ Application Management.
- Find Bluetooth, open it.
- Choose the Battery. โ No restrictions.
- Activate Auto Start and Secondary Start.
"No sound" or "Do not disturb" mode
In these regimes MIUI It can block new devices from connecting:
- ๐ Open the notification panel and make sure that the Do Not Disturb mode is not activated".
- ๐ต Go to Settings. โ Sound and turn off No sound or vibration.
Conflict with other wireless devices
If you have a smartwatch, a fitness bracelet or a speaker on your phone, they can clog up a Bluetooth channel.
- Disable all unnecessary devices in Settings โ Bluetooth.
- Turn on Flight Mode for 30 seconds, then turn off.
- Reboot the phone.
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Nana POCO F3 Xiaomi 11T There is a bug with Bluetooth in High Performance mode. Switch to Balanced or Battery Savings in the battery settings.
7. Alternative ways of connecting: if nothing helps
If the standard methods donโt work, try the workarounds:
- ๐ Use it. AUX-cable: if the headphones support wired connection (e.g. Sony) WH-1000XM4), temporarily move on.
- ๐ฑ Connect through another device: for example, use headphones with a laptop or tablet, and connect your phone to them via a Bluetooth repeater.
- ๐ Change your Bluetooth profile: in the developer settings (Settings) โ The phone. โ Version. MIUI โ 7 taps) select Bluetooth Settings AVRCP โ Version 1.6.
- ๐ ๏ธ Install custom firmware: LineageOS or Pixel Experience, for example, often work better with Bluetooth devices.
For Xiaomi owners with Qualcomm Snapdragon (e.g. Redmi Note 10 Pro, POCO X3 Pro) has a special patch that fixes Bluetooth problems:
1. Install Magisk (root required).
2 Download the Bluetooth Library Patcher module.
3. Reboot the phone.Warning: Installing custom firmware and modifications will void warranty and may cause the phone to malfunction.
8.When to contact the service: signs of hardware malfunction
If you've tried all the ways, but the headphones still don't connect, it might be a hardware problem.
- ๐ก Bluetooth is turned on, but no devices are found (even other phones).
- ๐ The headphones are connected, but the sound is interrupted every 5-10 seconds.
- ๐ฅ The phone overheats when trying to connect.
- ๐ Bluetooth shuts down after 1-2 minutes after activation.
- ๐ฅ The screen displays a Bluetooth error message (code 13) or similar.
The cost of repairing a Bluetooth module in Xiaomi:
| Model phone | Cost of repair (โฝ) | Date(s) |
|---|---|---|
| Redmi Note 10/11 | 1 800 โ 2 500 | 1โ2 |
| POCO X3/X4 | 2 000 โ 2 800 | 1โ3 |
| Xiaomi 11/12 Series | 3 000 โ 4 500 | 2โ5 |
| Xiaomi 13/14 Series | 4 000 โ 6 000 | 3โ7 |
Before the service visit:
- Make a backup of the data (repair may require a reset).
- Check if the service center has original parts for your model.
- Check if the warranty period has expired (usually 12 months for Xiaomi).