The situation when Xiaomi wireless headphones suddenly stop connecting to a smartphone is familiar to many users of the Mi ecosystem. You take out a case, open the lid, but instead of the usual pairing sound or notification on the phone screen, silence can occur for various reasons, from the banal discharge of the battery to software conflicts in the Android operating system.
Often the problem is not a device failure, but a failure of the data protocol or a crowded Bluetooth cache. Signal interference in congested air also plays a role, especially if you are in a crowded place. Before you carry the device to the service, you should try to restore its performance yourself using proven methods.
In this article, we will look at all possible causes of failure and offer step-by-step instructions to fix them, learn how to correctly execute Hard Reset for Redmi Buds and Mi True Wireless models, and how to clear the list of trusted devices in system settings.
The main reasons for the failure of Bluetooth connection
The first thing to do is to eliminate the obvious factors that block the radio module from running smoothly. Most often, headphones don't connect because they're already connected to another gadget. Bluetooth allows you to keep a list of trusted devices, but an active connection is usually only established with one sound source.
Another common problem is the low battery charge in the case or the headphones themselves. If the indicators do not light up when removed from the case, it may be that the contacts have become contaminated or oxidized, in which case the device simply cannot go into search mode or respond to a pairing request from the smartphone.
Also consider the distance between devices and the presence of physical barriers. Although Bluetooth 5.0 and higher provides good range, thick walls or a working microwave can cause interference. If the headphones are in the bag and the phone is in the pocket, the signal may not be stable enough for the initial handshake.
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Try to bring the case with headphones as close to the phone as possible (at a distance of 10-15 cm) at the time of trying to connect to eliminate problems with signal range.
Finally, you can't discount the software bugs of the smartphone itself: temporary system files or conflicting applications can block the communication module. Rebooting the phone often solves the problem if it's caused by the operating system's time glitch.
Checking the charge and contact status
If Xiaomi headphones don't respond to the case opening, check the charge level first. Many users forget that even a new case could run out during long-term storage in stock. Connect the charger and leave it for 15-20 minutes, even if the indicators do not burn immediately.
It's important to pay attention to the contact areas, which often get earwax, dust or moisture, which creates an insulating layer. To clean, use a cotton swab slightly soaked in alcohol, but do not let liquid enter the speaker. After cleaning, make sure that the contacts dry.
- 🔋 Make sure the indicator on the case lights up when connecting the cable.
- 🧹 Wipe the golden contacts on the headphones themselves with dry cloth.
- ⚡ Use the original cable or certified analogue with a current of at least 1A.
- 🌡️ Check if the device is overheated in the sun or from the processor.
If the lights don't light up after charging for an hour, it may be the battery itself or the power controller that's not going to work, and you'll need to have a diagnostic at the service center.
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A lack of response to charging for 30 minutes often indicates a deep discharge of the lithium polymer battery, which needs time to "swing".
Removing old profiles and re-pairing
The most effective way to get the headphones to work again is to remove them from the phone’s memory and create a new pair. Android can store incorrect data about previous sessions, which prevents you from establishing a stable connection, which helps in 80% of software failures.
To start, go to your smartphone’s Bluetooth settings. Find your Xiaomi Mi AirDots or other model on the device list. Click on the gear icon or information icon next to the name and select “Forget the device” or “Cancel pairing” option.
Settings → Connections → Bluetooth → (Device name) → ForgetThen you turn off the Bluetooth on your phone, wait 5-10 seconds and turn it on again, and that will clear the module's cache. Now put the headphones in pairing mode, normally you need to remove them from the case and pinch the touch areas for a few seconds until the indicators start flashing quickly.
⚠️ Warning: If you don’t delete the old profile before reconnecting, the phone may try to use the old encryption keys, resulting in an endless wait or error".
When the device appears on the list available on the phone, click on it. If it requests code confirmation, make sure the numbers on the screen match, and confirm the action. Now the connection must be established cleanly, without inheriting old errors.
Instructions for complete reset (Hard Reset)
If a simple reconnection doesn't work, you need to reset the headphones completely to factory status, which removes all the stored data inside the accessory and returns it to the "out of the box" state, which is critical if the headphones are trying to connect to each other incorrectly (for example, the left channel can't see the right one).
The reset procedure can vary depending on the model. For most Redmi Buds and Mi True Wireless Earbuds, the algorithm is the same, but requires accuracy in timing. Put both headphones in the case and leave the lid open.
☑️ Algorithm reset headphones Xiaomi
Hold the sensory areas on both earbuds at the same time. 20-30 So, for a second, until the lights flash red several times in a row, then close the case lid on the back. 10 Open it and try to find the device in the phone again.
For models with a physical button on the case (such as some versions of Mi True Wireless Earphones 2), it is easier to put the headphones in the case, open the lid and press the button on the case. Hold it for about 10 seconds until the color of the indicator changes.
| Model headphones | Resetting method | Indication of success | Retention time |
|---|---|---|---|
| Redmi AirDots / Mi True Earbuds Basic | Headphone sensors | Triple flashing red | 20-30 seconds |
| Mi True Wireless Earphones 2/2S | The button on the case | White flashing | 10 seconds. |
| Xiaomi Buds 3 / 3 Pro | The button on the case | Orange blinking | 10-15 seconds |
| Redmi Buds 3 Pro | The button on the case | White flashing | 10 seconds. |
After you do the reset, be sure to remove the device from your phone’s Bluetooth list again, even if you’ve done it before.
Compatibility issues and Bluetooth version
Sometimes the reason lies in incompatibility of Bluetooth protocol versions. Although the standard provides backward compatibility, older smartphones (released before 2016) may not work properly with new codecs, such as AptX Adaptive or LDAC, which use top Xiaomi models.
Check your phone specifications. If you have Android version below 8.0, you may have problems with displaying headphone battery or connection stability.
The effect of codecs on connection
It’s also worth checking if the phone is power-saving for Bluetooth.In some MIUI shells, there is an option that limits the background operation of wireless devices, which can lead to communication breakage or inability to connect.
Try connecting your headphones to another device, a laptop or a friend's phone, and if it works perfectly, it's the settings or hardware of your main smartphone that's the problem.
Update the firmware through the Mi Wear app
Modern Xiaomi headphones are complex microcomputers running their own firmware. Outdated firmware can contain bugs that block connection to new versions of Android. Use the official Mi Wear app (formerly Mi Earbuds) or Xiaomi Earbuds to update.
Download the app from Google Play or the App Store. Connect your headphones to your phone (if possible, at least for a short time) and open the app. If there is an update available, the system will prompt you to install it. Don't interrupt this process and keep the case next to your phone.
Mi Wear → My devices → Check for updates → InstallIt can take a few minutes to update, and at that time, the headphones can make sounds or blink, and when they're done, they automatically reboot, and often it's the new version that fixes problems with handshake protocols and connection stability.
⚠️ Warning: During firmware updates, you should not open the case cover or take the phone far away. Interrupting the data record can "brick" the headphones, making them unusable.
If you can't update through a standard app, try to find alternative community utilities, but only if you're sure of the source.
Hardware malfunctions and maintenance
If none of the software methods worked, there is a high probability of hardware failure, which could be a failure of the Bluetooth module inside the earphone, the oxidation of the board due to moisture or the degradation of the battery, which no longer holds charge even after a long charge.
Notice the behavior of the indicators, if the left earphone is flashing and the right earphone is not flashing, or they are flashing different colors, this is a signal that one of the modules is desynchronized or broken, and the case is heated when charging.
In the case of mechanical damage (fall, water), self-repair is almost impossible due to the miniaturization of the components and their dense layout. Trying to disassemble the headphones yourself is almost guaranteed to lead to their final breakdown.
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Warranty case often covers defects of the connection, if there are no traces of physical impact or ingress of liquid inside the housing.
We recommend that you contact an authorized Xiaomi service center, and specialists will conduct diagnostics on special equipment and tell you exactly whether the device is repairable or replaced. If the warranty is still valid, repair will be free.