The situation when your favorite wireless headphones suddenly stop working in pairs with a Xiaomi smartphone is familiar to many owners of technology. This can happen after a system update, accidental resetting of settings or due to software conflicts in the shell of MIUI and HyperOS. Instead of the usual music, the user is faced with silence or constant interruptions of the signal, which causes natural irritation.
But it’s too early to panic, because most of the time, the problem isn’t a physical device failure, but a software failure. Xiaomi uses complex power-saving algorithms that sometimes aggressively limit the operation of Bluetooth’s background processes. Understanding the logic of the system will allow you to quickly bring your devices back to life without going to the service center.
In this detailed guide, we will look at all possible causes of malfunctions and offer step-by-step solutions, covert settings, profile conflicts and forced reboot methods of communication modules. Follow the instructions carefully to eliminate human error.
Primary diagnostics and basic checks
Before you go into deep system settings, you need to eliminate basic errors. Often users forget that the Bluetooth module of the phone could simply “hang” after a long downtime or operation in flight mode. First of all, complete the full cycle of turning on and off wireless communication on your smartphone.
It's also worth checking the charge status of the headphones themselves. If the battery in the case is discharged to zero, the device may not be showing signs of life or entering pairing mode. Make sure the contacts on the case and headphones are clean, and the indicators burn when connected to charging.
⚠️ WARNING: If the indicator on the case flashes red or doesn’t light up at all, the problem may be in the charging cable or the battery itself, not the phone’s software.
Another important thing is distance and interference. Make sure there are no thick walls or working microwaves between the phone and the headphones that can jam the signal. Try to get close to the smartphone and try again.
Removing old profile and re-pairing
The most effective way to do this is to “forget” the device in the system. Xiaomi smartphones sometimes store the erroneous encryption keys for previously connected gadgets, which blocks the new connection.
To do this, go to the Settings → Bluetooth menu. Find the name of your headphones (such as Redmi Buds or Mi True Wireless) in your list of devices and click on the gear icon or arrow next to the name. In the menu that opens, select "Unpair" or "Forget device."
After deleting the profile, you need to put the headphones into forced pairing mode, usually you need to pinch the touch panels on both headphones simultaneously for 5-7 seconds until the indicator flashes quickly in white or blue.
☑️ Checklist of correct reconnection
If after reconnecting the sound appeared, but after a while again disappeared, the problem may lie in the automatic switching of profiles. The system may have mistakenly assigned the device only for calls, leaving the media channel closed. Check the profile settings in the same Bluetooth menu after connecting.
Resetting headphones to factory
If a conventional reconnection doesn’t work, a more radical method is to completely reset the headphones themselves, which clears the headset’s internal memory of all the accumulated errors and returns it to the “out of the box” state.
In most modern models, such as AirDots or Buds 3/4, reset is performed by holding the touch zones on both headphones for 20-30 seconds until the indicator flashes several times.
| Model headphones | Resetting method | Indication of success |
|---|---|---|
| Redmi Buds 3 / 4 | Hold the sensors down for 10 seconds. | Triple flashing. |
| Mi True Wireless 2 | Case button 10 seconds. | White flashing |
| AirDots Pro 2 | Hold both earphones. | Red flashing |
| Mi Noise Cancelling | Button + sensor | Sound signal |
Once you reset, be sure to remove the device from the Bluetooth list on your phone again, even if you have done it before. The old profile may conflict with the updated headset settings. Only after the full Reset -> Remove -> New pairing cycle can you talk about the purity of the experiment.
What to do if the reset does not work?
Power saving settings MIUI and HyperOS
Xiaomi’s shells are known for aggressive battery optimization, which often kills processes needed for Bluetooth to work smoothly. If the headphones turn off on their own or don’t work in the background, you need to change the power settings.
Go to Settings → Applications → All apps. Find the “Bluetooth” list (sometimes hidden, click three dots in the corner and select “Show System”). Go to “Battery Savings” and select “No Limits” option, which will prevent the system from turning off the communication module.
It's also worth checking the permissions for the Mi Bluetooth or Xiaomi Earbuds app if installed. Make sure they have access to geolocation (necessary for Bluetooth Low Energy to work) and autorun. Without these permissions, stable operation is impossible.
⚠️ Warning: Changing your power saving settings may slightly increase your smartphone battery consumption, but it is necessary for the stability of the connection with external devices.
💡
Use the Mi Wearable app to manage your headphones – it automatically configures the necessary exceptions in Xiaomi’s system for stable operation.
Working with engineering menus and codecs
For advanced users who have experienced sound quality issues or delays, manual codec customization may be required. Xiaomi smartphones support a variety of audio compression formats, and automatic selection is not always correct.
To access the developer settings, go to Settings → About Phone and quickly click 7 times on MIUI Version (or OS Version). Then, in the advanced settings, look for the Developer section.
Try switching the codec from SBC to AAC or aptX if your headphones support them. Sometimes the forced choice of a simpler SBC codec solves problems with interruptions in places with a lot of radio interference.
Settings → Additional → For developers → Bluetooth audio codec → Select AAC/SBCYou can also find the option “Disable absolute volume.” If the volume of the headphones and phone is out of sync (for example, on the phone at most, but in the headphones is quiet), turning on or off this feature often solves the problem.
💡
Forced audio codec change often eliminates the crackling and sound delays characteristic of the congested 2.4 GHz band.
Hardware conflicts and resetting network settings
If the software didn't work, maybe there were some network configuration errors in the system, and resetting the network settings would bring all the Wi-Fi, mobile Internet and Bluetooth settings back to factory values, and it wouldn't delete your personal files or contacts.
You can reset via the Settings menu → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. Confirm the action and wait for the device to restart. Once turned on, you will have to re-enter the passwords from Wi-Fi networks.
In rare cases, the problem can be caused by physical damage to the antenna after falling or getting moisture.If none of the software methods, including resetting to the factory settings of the smartphone itself, did not help, there is a high probability of hardware malfunction of the Bluetooth module.