Modern smartphones from the Chinese manufacturer almost completely got rid of the 3.5 mm connector, which makes the use of Bluetooth headsets not just a convenience, but a necessity. The process of pairing devices based on the shell MIUI or HyperOS usually passes automatically, but sometimes users face difficulties when the gadget does not see the accessory or refuses to transmit sound. Understanding the nuances of the Bluetooth protocol in the Android system will help avoid unnecessary nerves.
In this article, we will go into detail all the stages of configuration, from activating the search mode to fine-tuning audio codecs, you will learn why some models may not appear in the list of available devices, how to force the search of devices, and pay attention to solving common problems, such as desynchronization of sound or quiet playback.
Before you start, make sure that your smartphone has the appropriate communication module on, a basic requirement without which further action is meaningless. To go into pairing mode, most headphones require holding the power button for 5-7 seconds before the indicator flashes, only after that the phone will be able to detect them.
Preparation of headphones for pairing
The first step is always to put the accessory in detection mode. Many users make the mistake of simply turning on the headset, but this is not enough for the first connection. The device must actively "broadcast" its signal so that the Xiaomi smartphone can fix it. Depending on the model, the procedure may differ.
For TWS-True Wireless models, such as Redmi Buds or Mi True Wireless, often require both earbuds to be removed from the case and press the function button on the case. If there is no button, sometimes you just need to touch the touch areas on the headphones themselves at the same time. In the case of full-size models, such as Mi Headphones, you need to press the on button before the indicator flashes quickly.
It is important to monitor the battery charge of the connected device. If the battery is severely discharged, the gadget may turn on, but will not be able to maintain a stable connection or even refuse to switch to Pairing Mode. Make sure that the case or the headphones themselves are charged at least 20-30% before the procedure.
⚠️ Warning: If the headphone indicator is on straight or flashes slowly (every few seconds), the device is in standby mode and not searchable.
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If the headphones have previously been connected to another phone, they can automatically try to connect to it. temporarily turn off Bluetooth on the old device so Xiaomi can find the accessory.
Bluetooth configuration in the MIUI and HyperOS interface
After the accessory is ready, we move on to the smartphone settings. Xiaomi's interface is highly customized, but the basic functions are hidden in the standard menu. First, open the notification curtain with a swipe from top to bottom and find the Bluetooth icon. Click on it to activate the module, and then press the icon with your finger to go to the advanced settings.
In the menu that opens, you'll see a list of "Available Devices." The system automatically scans the air. If your gadget doesn't appear on the list right away, click "Search for Devices" or "Update" at the top of the screen. Xiaomi's system sometimes aggressively saves energy, so the scan may not start right away.
When your headset name appears on the list, click on it. A request for code pairing confirmation or just a notification of connection may appear on the screen. After successful synchronization, a battery icon will appear next to the device name, confirming stable connection and data exchange.
The same menu can rename the device for convenience by clicking on the gear next to the name. It also displays the type of profile you have connected (such as Audio or Sound and Video). If the battery icon is not displayed, it may be that your smartphone does not support the charge transfer protocol for this particular accessory model.
Step-by-step connection instruction
To systematize the process and not miss anything, use the following algorithm of actions. It covers 95% of all wireless peripherals connection scenarios to Xiaomi, Redmi and POCO phones.
☑️ Connection algorithm
- Unlock the smartphone screen and make sure it’s not in flight mode.
- Activate Bluetooth through the curtain or Settings menu → Bluetooth.
- Transfer the headphones to pairing mode (flicker indicator).
- Wait for the device name to appear in the “Available Devices” section.
- Click on the title and confirm the action if required.
After these steps are completed, the sound should switch to the external device. If this does not happen, check the media settings. Sometimes the system connects the device only for calls, leaving media audio on the phone's speaker. To fix this, click on the gear next to the connected device and make sure that the ticks are opposite to the "Sound" and "Multimedia".
In some cases, especially with gaming headsets, it may be necessary to install an additional application from the manufacturer to customize. EQ-The basic connection works without it, but the full functionality is revealed only with the software.
Working with Multiple Devices and History
Xiaomi's ecosystem allows you to store a lot of previously connected gadgets in your phone's memory. However, an active connection is usually supported with only one audio playback device. If you've connected new headphones and the sound is still coming through a speaker or old headphones, you need to manually switch the audio output.
To manage your connection history, go to the Bluetooth menu, you will see the My Devices section, where all the gadgets ever paired are stored. By clicking on the information icon next to the device, you can select the option “Disable” (temporary disconnect) or “Forget the device” (complete removal of profile and encryption keys).
| Action. | The result | When to use |
|---|---|---|
| Shut down. | Communications interruption, profile saved | Temporary switch to speaker |
| Forget the device | Delete profile, reset settings | Connection problems, sales |
| Rename | Change of the displayed name | For convenience (if there are many devices) |
| Searching for devices | New ether scanning | If the gadget is not visible in the list |
Forget device is especially useful when troubleshooting: If the headset is behaving strangely, completely deleting the profile and re-pairing "clean" often solves the problem better than simple reboots.
Features of MIUI 14 and HyperOS
Advanced sound and codec settings
For audiophiles and users who value high audio quality, Xiaomi offers access to hidden Bluetooth settings. In the About Phone menu, you need to click on the MIUI version several times to activate the developer mode.
Inside this menu, find the Bluetooth-related section. You can manually select an audio codec. By default, the system uses SBC, which provides basic quality. If your headphones and phone support more advanced codecs like AAC, aptX, aptX HD or LDAC, you can force them to improve audio detail.
You can also set the absolute volume level here, and if you notice that the volume control on your phone is not synchronized with the volume of your headphones (or vice versa), try to switch this setting, which is a common problem when connecting third-party, non-Xiaomi certified accessories.
⚠️ Note: Change the codec to a better quality (for example, LDAC) It can increase battery consumption and cause a delay in sound in video or games. AAC or aptX Adaptive.
Solving Connection and Sound Problems
Even if you follow all the instructions, you can crash. If a Xiaomi phone doesn't see the headphones at all, try the following set of actions. Often the problem isn't with the hardware, but with a software conflict or a crowded Bluetooth service cache.
- 🔄 Reboot: Banal switching off and on the smartphone solves 80% of problems with communication modules.
- 🗑️ Cache Clearing: Go to Settings → Annexes → All applications, find in the list “Bluetooth”, open the storage and click “Clear cache” (not data if you are afraid to lose lists, but for diagnosis you can also data).
- 📶 Network reset: The Connection and Sharing menu features Wi-Fi, mobile and Bluetooth resets, which will bring network settings back to factory settings.
If the sound is interrupted or there is a crack, make sure there are no thick walls or working microwaves between the phone and the headphones that cause interference in the 2.4 GHz range. Also check if power saving mode is turned on, which can limit the power of the Bluetooth transmitter.
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If nothing helps, perform a full reset of the headphones to factory settings (usually by keeping the volume and power buttons off) and remove them from the Bluetooth list on the phone before reconnecting.