Modern Xiaomi smartphones, which are based on the shells MIUI or HyperOS, offer users a wide range of multimedia, and the use of wireless acoustics plays a role here. The process of pairing Bluetooth devices in the Android ecosystem is standardized, but owners of Chinese gadgets often have questions about the features of the interface or specific energy saving settings. In this article, we will discuss in detail all the stages of connection, from activation of the module to fine-tuning the audio profile.
Getting the phone-headset connection right isn’t just a matter of convenience, it’s also a way to unlock the potential of the high-resolution codecs your device supports. Many users don’t even realize that their device can transmit LDAC or aptX audio if you set the developer’s settings right. Let’s start with the basic steps that are relevant to the vast majority of models, from the budget Redmi to the flagship Mi series.
Preparation of headphones and phone for pairing
The first and most critical step is to put your headset into detection mode. Unlike wired accessories, wireless devices don't always automatically become visible to external gadgets immediately after you turn on. TWS-model (True Wireless Stereo), usually you need to remove both headphones from the case or pinch the touch panels for a few seconds before the flashing indicator appears.
On the smartphone side, Xiaomi needs to make sure that the Bluetooth module is active and functioning correctly. Sometimes the system can “hang” in search mode if many devices have previously been connected, so before starting the procedure, it is recommended to restart the phone, this will clear the cache of communication services and ensure a stable start to the search process.
It is also important to check the charge levels of both devices. At low power levels, some headphone models may not switch to pairing mode or interrupt the connection immediately after it is established.
⚠️ Note: If your headphones were previously connected to another phone, they may automatically try to connect to it, ignoring your Xiaomi.In this case, turn off Bluetooth on the old device or select "Forget the device" in its settings.
- 🎧 Press the button on the headphone case before the flashing indicator appears.
- 📱 Make sure that the smartphone screen is unlocked and is in active condition.
- 🔋 Check that the charge of both devices is at least 20%.
- 📶 Turn off Bluetooth on other nearby devices to avoid conflict.
💡
For TWS-headphones often require reset to factory settings (usually pressing buttons on the 10-15 seconds), if they are not visible in the list of available devices after extraction from the case.
Step-by-step connection instruction via Bluetooth settings
The MIUI shell interface may vary slightly between Android versions, but the logic of the menu remains the same: you need to get to the wireless connection control center, and you can do this in two ways: through the notification curtain or through the main settings menu of the system.
Open the Settings app and find the Bluetooth partition. In newer versions of HyperOS, this item can be displayed to the top menu immediately after you enter the unlock pin. Switch the slider to the active position if it is not already on. The system will automatically start scanning the surrounding space.
Your headset should appear on the Available Devices list, and it often matches the model on the box, or has a standard name like "TWS," "Headset," or the manufacturer's brand. Tap the name to initiate handshake protocol.
☑️ Algorithm of successful connection
When you click on the device name, you may see a request to confirm that you have or are not paired with the code, 99% of the time, no code is required, and the connection is automatically established. PIN-The standard values are 0000 or 1234, although modern devices do not.
Customization of sound and codecs in MIUI and HyperOS
After a successful connection, the default system selects a standard codec. SBC, It provides basic sound quality that is compatible with all devices, but if your headphones and smartphone support more advanced compression algorithms, مثل aptX, AAC or LDAC, It makes sense to manually activate them to improve audio detailing.
To access these settings, you will need to activate the developer menu. Go to Settings → About Phone and quickly click 7 times on the MIUI Version (or OS Version). Once the “You Become a Developer” notification appears, go back to the settings menu, select Additional → For Developers.
Inside the menu, find the Bluetooth-related section, and here you're interested in items like "Bluetooth audio codec," "Audio bit rate," and "Sampling frequency," and choosing an LDAC or aptX HD codec will allow you to transfer significantly more data, which is especially noticeable when listening to lossless formats.
Why can sound become intermittent when choosing a high codec?
Don’t forget to also check the equalizer settings. In the Music app or through Settings → Sound and Vibration → Sound effects, you can choose a profile that is suitable for your headphone model, or adjust the frequencies manually.
| Codec | Bitrate (example) | Quality. | Compatibility |
|---|---|---|---|
| SBC | 328 kbps | Basic | Universal. |
| AAC | 256 kbps | Good. | iOS, Android |
| aptX | 352 kbps | High. | Android, Qualcomm |
| LDAC | 990 kbps | Hi-Res | Android 8.0+ |
Solution: Headphones are not in or connected
The situation when Xiaomi phone does not see headphones is one of the most common. Often the problem is not a hardware malfunction, but a software failure of the Bluetooth service. If the device does not appear in the list, try clearing the cache of the Bluetooth service through the application menu.
To do this, go to Settings → Apps → All apps. Click on three dots in the corner of the screen and select Show System Processes. Search in the Bluetooth list, click Clear → Clear cache and Clear all data. After that, the phone will restart.
Another reason could be the overcrowded memory of the paired devices: Smartphones remember a limited number of gadgets, and if the limit is exhausted, no new device will be added.
⚠️ Note: When you clean up Bluetooth data, you will lose a list of all previously stored devices.
- 🔄 Reboot your smartphone and headphones at the same time.
- 🗑️ Remove the headphone profile from your phone’s memory if it’s there (“Forget the device»).
- 📡 Turn off Wi-Fi while pairing, as 2.4GHz frequencies can interfere.
- 🔌 Charge the headphones, as in the “deep discharge” mode, the communication module may not work.
Use of the Two Devices and Multipoint
Many modern Xiaomi models support Dual Audio or the ability to connect two pairs of headphones at the same time, allowing you to share music with a friend without the need to use external splitters, the implementation of this feature depends on the Bluetooth version and support for the A2DP Sink/Source profile.
To activate mode, plug the first pair of headphones in the standard way. Then, without turning them off, put the second pair in pairing mode and find it in the list of available devices, the system should suggest connecting the second device, keeping the first one active.
In some cases, managing audio streams will require the use of third-party apps or activating special flags in the developer menu, such as "Enable Bluetooth Dual Audio." However, native support in MIUI often works automatically when the appropriate hardware is available.
💡
The function of connecting two devices at the same time works stably only if both sets of headphones support modern standards Bluetooth 5.0 and higher.
It is worth considering that when working with two streams of sound, the load on the smartphone battery increases, and the coding quality can be reduced by the system to ensure synchronization. If you notice the desynchronization of audio and video, it is better to leave one active device.
Optimization of connection autonomy and stability
Constant search for devices and high-quality audio streaming can significantly affect the time of a smartphone. MIUI optimization sometimes aggressively kills background processes associated with Bluetooth, leading to unexpected music shutdowns.
To prevent this, find the battery in the settings and go to control application activity. For the Bluetooth system process or the player used (Spotify, Yandex.Music), set the background activity limit in the “No Limits” mode, which will prevent the system from unloading the process from memory.
It is also recommended to disable the Adaptive Connection feature in the Bluetooth menu if it is present in your version of the software.This feature attempts to analyze signal quality and switch codecs on the fly, which sometimes causes delays or clicks in the sound.
Regularly update the firmware of the headphones themselves through branded applications from manufacturers (for example, Xiaomi Earbuds, Galaxy Wearable or Sony Headphones Connect). Updates often contain patches that improve compatibility with Qualcomm and MediaTek chipsets used in Xiaomi.