Modern Xiaomi Redmi and Poco smartphones are equipped with advanced Bluetooth modules that make it easy to connect to different peripherals. Wireless headphones have become an indispensable accessory for listening to music, watching videos and talking, freeing the user from confusing wires. However, despite the stated simplicity of the technology, the initial setup and optimization of sound can cause questions for owners of new devices.
Connecting devices with MIUI or HyperOS shells has its own characteristics that distinguish it from standard Android. Connection stability and playback quality depend on the correctness of the primary actions in mating. In this material, we will analyze all the nuances from basic pairing to fine-tuning audio codecs.
Also, many users are unaware of hidden features that can dramatically improve the experience. For example, changing Bluetooth priority or choosing the right audio codec can do wonders with sound quality.
Preparation of the device and activation of Bluetooth
Before you try to connect your gadgets, you need to make sure that your smartphone is ready to search for external devices. First of all, check if the wireless module itself is on the system. To do this, lower the "curtain" of the notifications by swipe from top to bottom and find the Bluetooth icon. If it does not burn in blue, click on it to activate.
You can access the deeper settings through the system menu. Go to Settings → Bluetooth and make sure that the slider is activated. Here you can see the name of your phone that will be displayed for other devices. The visibility of the device is a key parameter without which search will not begin.
Also worth looking at is the operating system version. Outdated software may contain bugs that affect wireless interfaces. Check for updates in Settings → Phone. Up-to-date firmware provides better compatibility with new headphone models.
⚠️ Attention: If the icon immediately disappears after turning on Bluetooth or the device is not detected by other gadgets, the antenna module may be damaged or there has been a system failure.
Remember that to work properly, energy saving should not block device search. In battery settings, make sure that there is no strict background limit for Bluetooth system services.
The process of pairing: step-by-step instructions
The most important step is to directly connect the Xiaomi smartphone to the headphones. The algorithm may vary slightly depending on the accessory model, but the general principle remains the same: first you need to put the headphones themselves into a pairing mode (Pairing Mode).
- 🎧 For TWS-models: remove the headphones from the case and press the touch panels on both headphones at the same time on the 3-5 seconds until the indicators flash.
- 🎧 For overhead models: press the power button on 7-10 seconds until the LED starts flashing quickly in blue or red-blue.
- 🎧 For some models: a separate button with a Bluetooth image may be required, holding which will activate the search.
Once you activate accessory search mode, pick up your phone. The Bluetooth menu will show you a list of available devices on your smartphone screen. Find your model name in the Accessible Devices list and click on it. The system will request a pairing confirmation.
☑️ Checking before connection
Sometimes the system can request PIN-The standard combinations are usually 0000 or 1234, but in 95% of cases, modern devices connect automatically without entering a code.
Customization of sound and codec selection in MIUI and HyperOS
Xiaomi shells provide advanced audio management capabilities that are hidden from the average user. To access the engineering menu or advanced Bluetooth settings, you often need to activate the developer mode. Go to Settings → About Phone and quickly click 7 times on either MIUI Version or OS Version.
After activating the developer menu (you’ll be a developer notification), go back to the main settings menu and go to Additional → For Developers. scroll down to the Network or Bluetooth section. Here you’ll find the Bluetooth Audio Codec.
- 🎵 SBC: The basic codec is compatible with all devices, but has poor sound quality.
- 🎵 AAC: Standard for Apple devices and many Android smartphones, gives good quality when compressed.
- 🎵 aptX / aptX HD: Qualcomm’s high-resolution, low latency technologies are ideal for Android.
- 🎵 LDAC: Sony’s codec that transmits the most data, but requires support from both devices.
The choice of codec affects how a digital signal is converted to an analog one. If your headphones support aptX HD and your phone has SBC, you won't hear the difference in quality. Forced selection of a higher codec can improve sound but increase battery consumption.
What if the selected codec is not on the list?
Managing sound profiles and equalizer
In addition to the technical parameters of the transmission, software processing is of great importance, and in the smartphones of Redmi and Xiaomi, the section “Sound and vibration” is responsible for this, and here you can find a built-in equalizer that allows you to adjust the frequencies.
Go to Settings → Sound and Vibration → Sound Effects. Depending on the model, there may be a graphic equalizer with sliders or a set of presets (Pop, Rock, Jazz). For wireless headphones, it is often useful to raise the high frequencies a little bit for more detail.
| Setup parameter | Impact on sound | Recommendation |
|---|---|---|
| Basses (60Hz) | Depth and power of low frequencies | Raise for electronic music |
| Medium (1 kHz) | Clear vocals and basic instruments | Leave by default or slightly reduce |
| High (10 kHz) | Details, "air," ringing | Raise for classics and jazz |
| Virtualization | Expansion of stereobe | Only turn on when watching the video |
Also in this section, you often see the "Mi Sound Enhancer" or "Adaptation of Sound to Headphones" feature, which analyzes the resistance of the connected device and adjusts the output signal. For wireless Bluetooth connection, this feature may not be active, since the processing takes place on the side of the headphones.
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For the best result when using the equalizer, first reset all settings to the Normal or Flat profile, and only then start making changes to hear the real difference.
Solving Connection and Sound Problems
Despite the reliability of the technology, users can face problems. The headphones are connected, but the sound is not going. In this case, you need to check the media profile. Go to the Bluetooth settings, click on the gear next to the name of your headphones and make sure that the Multimedia switch is activated.
Another common problem is intermittent sound or crackling, which can be caused by interference from a 2.4GHz Wi-Fi router or a microwave oven. Try to move away from the source of interference. It can also be caused by a dead battery in the headphones.
If the sound is quiet or gone completely, try to “forget” the device in the Bluetooth settings and pair again, sometimes by clearing the Bluetooth cache through an engineering menu or resetting the network settings.
⚠️ Warning: If there is sound on the system (for example, you hear clicks of the interface), but it is not in YouTube or Spotify, the problem lies in the specific application.
Optimization of autonomy and stability of work
Using wireless headphones significantly affects the charge consumption of the smartphone, to extend the time you can turn off unnecessary functions, for example, the constant search of devices in the background consumes resources.
In the developer section, you can find the Bluetooth version, make sure you choose the current version that your device supports, and there is a hidden command to reset the Bluetooth stack, but it requires caution.
For stable operation, it is important to prevent the smartphone from overheating in the antenna area. If the phone is very hot, the Bluetooth module may work unstable, which will lead to dissynchronization of audio and video. Remove the case if it is on the back and interferes with heat removal.
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The main secret to stable work is to keep the phone firmware and firmware headphones up to date, as manufacturers often release patches that improve compatibility.