Modern Xiaomi Redmi smartphones offer users advanced wireless audio technology, but the initial setup process can raise questions for beginners. Connecting a Bluetooth headset is the first step to comfortably listening to music and conversations without wires, which takes only a few minutes with the right approach. MIUI device owners often face interface nuances that differ from standard Android, which requires detailed consideration of the procedure.
In this article, we will take a look at all the steps of synchronizing devices, from activating the detection mode on accessories to fine-tuning audio codecs for maximum sound quality. You will learn how to avoid typical errors, why the phone may not see the headphones and what hidden features are available in the engineering menu of the Xiaomi HyperOS shell or earlier versions of MIUI.
The quality of the connection depends on the correctness of the actions performed at the start, so it is important to follow the algorithm carefully. Signal stability and no delays when watching the video are the result of a competent initial configuration, which we will now consider.
Preparation of equipment and activation of the coupling mode
Before you try to find a device in the list of available, you need to put the headphones themselves in the standby mode. Most models of TWS (True Wireless Stereo) on the first extract from the case automatically go into search mode, which is signaled by a fast flashing indicator. If you connect the device to the phone for the first time, just open the charger cover without removing the headphones themselves, or pinch the touch panels for 5-7 seconds before the appearance of the characteristic sound signal.
For models with physical buttons, the procedure can be different: it is often necessary to hold the power button or a special pairing button on the case case, at which time the LED indicator begins to flash blue or alternately blue and red, which means activation of the Bluetooth Discovery protocol. Without this step, the smartphone will not physically be able to detect the accessory, even if it is turned on.
⚠️ Warning: If the headphone indicator is on or off quickly, it means that the pairing mode is not activated or the battery charge is critically low.
If your headphones have previously worked with another phone, they may try to connect to it automatically, ignifying a new request from Xiaomi Redmi.In such cases, it is recommended to temporarily turn off Bluetooth on another device or perform a factory reset to clear their memory.
How to perform a complete reset of TWS headphones
Bluetooth configuration in the MIUI and HyperOS interface
After the accessories are ready, we move on to the smartphone settings. The MIUI shell and the new HyperOS have a slightly different interface, but the logic remains the same. You need to open the Settings app and find the Bluetooth section. In some versions of the firmware, this item is placed in the top menu of Connections and Sharing, which makes navigation easier for the user.
Make sure the Bluetooth activation slider is moved to the "On" position. The smartphone will immediately start scanning the surrounding space for available devices. If the list is empty, click the update button or wait a few seconds until the system completes the search. Your headphones' name should appear in the "Available Devices" section.
- 📱 Open Settings and go to Bluetooth».
- 🔍 Wait for the name of your headset to appear in the list of available devices.
- ✅ Click on the device name for initiation of the mating process.
- 🔢 If necessary, enter a confirmation code (usually 0000 or 1234), although modern models do not.
When you connect, you may have a request to allow access to contacts and call logs on your screen, permission to access is required so you can see the name of the caller and manage contacts directly from the headphones, and denial of access will limit the functionality to media playback only.
☑️ Checking before connection
Connected Device Management and Priorities
Once successfully connected, the headphones are listed as “My Devices” in the Bluetooth menu. Here, Xiaomi Redmi provides advanced control. By clicking on the gear icon or arrow next to the headset name, you will open a menu of detailed settings where you can rename the device, disable certain profiles or forcibly break the connection.
One of the useful features is automatic connectivity. By default, the smartphone tends to connect to the last used headset immediately after turning on Bluetooth. This is convenient, but sometimes it gets in the way if you want to listen to music through the speaker, and the phone suddenly connects to the headphones lying in the bag. In this menu, you can turn off the automatic connection for a particular device.
| Parameter | Description of function | Recommendation |
|---|---|---|
| Autoconnection | Automatic communication when appearing in radius | Leave it on for the main device |
| The sound of notifications | Translation of system sounds into headphones | Turn off for immersion in music |
| Double device | Connecting to two sources at the same time | Requires Multipoint support with a headset |
| Absolute volume | Synchronization of phone volume and headphones | Insert for easy control |
This section also shows the battery level of the headphones and the case (if the model supports telemetry transmission), and the charge control helps to avoid a situation where the music abruptly breaks down in the middle of the track due to a battery that has run out.
Advanced sound settings and codecs aptX
Xiaomi smartphone owners can only evaluate sound quality when they have the right codec setup. By default, the system chooses a universal SBC codec that provides basic quality but does not unlock the potential of expensive headphones. To activate advanced codecs such as aptX, aptX HD or LDAC, you need to go to the Developer Menu.
To get into this menu, you need to quickly click on the build number in the About Phone section several times until you notice that you have become a developer. Then, in the advanced settings, look for the Bluetooth Audio Codec section, where you can force the desired data format to be selected if your headphones support it.
⚠️ Warning: Choosing a codec that is not supported by your headset will result in no sound or permanent connection breaks. Use only the formats stated in your headphone specification.
Enabling the aptX Adaptive or LDAC codec allows high-bitrate audio, which is especially noticeable on complex musical compositions with rich instrumental parts, but it is worth considering that the use of high-resolution codecs increases the power consumption of both devices.
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For maximum signal stability in places with large crowds (metro, shopping center), it is better to switch to the SBC or AAC codec, since they are less prone to interference than aptX HD.
Solution: Headphones are not connected or are not working stable
Despite the well-established communication protocols, users sometimes face problems: the phone does not see the headphones, the connection is constantly breaking or the sound is played in only one ear. Most often the cause lies in a software failure of the Bluetooth cache or a conflict of profiles. First of all, try “Forget the device” in the Bluetooth menu and perform the pairing again.
If the reboot doesn't work, check your power saving settings. Aggressive MIUI optimization can kill the Bluetooth service process to save charge. Go to the battery settings, find Bluetooth, and set up No Limits mode, which will prevent the system from turning off the communications module in the background.
Problems can also arise from overcrowded memory of the paired devices: If there are more than 10-15 devices in the list of saved gadgets, remove old and unnecessary devices, this will free up the module resources and can eliminate delays in the transmission of the audio stream.
- 🔄 Perform a network reset (this will delete all stored Wi-Fi and Bluetooth connections).
- 🔋 Check if the power saving mode on the smartphone itself is turned on.
- 📡 Make sure there are no powerful sources of interference (microwaves, routers at 2.4 GHz).
- 🛠 Update the firmware of headphones through the manufacturer's branded application (if any).
In rare cases, cleaning the cache of the Bluetooth system application helps, so you need to turn on the system processes display in the application menu, find “Bluetooth”, go to storage and click “Clear cache”. Cache reset will not delete your personal data, but will return the settings of the communication module to factory.
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90% of connection problems are solved by completely removing the device from the phone’s memory and re-pairing the smartphone screen off.