How to reset Bluetooth on Xiaomi phone: instructions and solutions

Modern Xiaomi smartphones are powerful multimedia centers that actively use wireless protocols for data transfer. Bluetooth module in the brand’s devices works steadily, but over time users can face various software failures, this can be expressed in the inability to find the device, constant connection breaks or errors when pairing with headphones and cars.

When standard shutdown and activation of the function in the notification curtain stops helping, a deeper approach is required to solve the problem. Resetting Bluetooth settings on Xiaomi is an effective procedure that allows you to clear accumulated errors in the system configuration files. In this article, we will discuss in detail all available methods, from simple actions in the menu to the use of engineering codes.

Doing this will help restore stability to the wireless interface, and it's important to understand that depending on the version of the MIUI shell or the new HyperOS, menu item names may vary slightly, but the logic of action remains the same for the entire ecosystem.

Primary diagnosis and simple methods

Before resorting to radical measures, such as a complete reset of network settings, it is worth trying less intrusive methods. Often the problem lies in a stalled service process or a crowded buffer for exchanging temporary data. Simply switching flight mode can reboot the radio module, but for Bluetooth this is sometimes not enough.

The first step should always be to check the list of conjugate devices, accumulating a large number of old profiles can cause addressing conflicts, remove devices from your phone's memory that you haven't used in a long time, and try to re-search.

Also worth noting is the driver version that is integrated into the system update, if your phone hasn't received security updates in a long time, there may have been a build-up of bugs in the communication stack, and check for updates in the appropriate settings section.

⚠️ Warning: If you are trying to connect a car radio, make sure that the phone does not store a “Car Kit” profile from the previous car, as this often blocks the new connection.

In some cases, forced shutdown helps, so go to settings, find the phone section, and click on the kernel version several times, although on modern versions of Android this method is hidden.

Reset network settings through the system menu

The most effective and safe way to fix connection errors is to reset your network settings, which doesn't affect your personal files, photos or contacts, but completely clears the configuration of all wireless interfaces, and then the Bluetooth adapter will work as if the phone had just come out of the box.

To do this, you need to go to the settings section. The path may vary depending on the version of the shell, but it is usually in the Connections and Sharing menu or Additional Features menu.

The system will alert you that all stored Wi-Fi passwords and Bluetooth pairs will be deleted. This is the expected behavior. You will need to enter the unlock password to confirm actions. After the reboot, the phone will search for devices again.

☑️ Checklist before network reset

Done: 0 / 4

It is worth noting that after this procedure, you may need to reconfigure the APN access point for mobile Internet, if the operator does not apply an automatic configuration.

Cleaning of cache and system services data

If you think a complete network reset is unnecessary, you can try to clear the cache of a specific system application responsible for Bluetooth operation. In the Android operating system, the Bluetooth or Bluetooth MIDI Service component in the application list is responsible for this.

To get to the menu, go to Settings → Apps → All Apps. In the upper right corner, click on three dots and select "Show System Processes." Find in the "Bluetooth" list, click on it and select "Clean."

It's important not to confuse cache cleaning and data cleaning. Cache cleaning is safe and only deletes temporary files. Cleaning up all data is effectively equated to resetting network settings described in the previous section and will remove all pairings.

  • 📱 Go to the application management menu.
  • 🔍 Activate the display of system processes.
  • 🗑️ Select Cache Clearance for Bluetooth Service.
  • 🔄 Restart the device to apply changes.

This method often helps when the problem manifests itself as a "stick" status connection, for example, the phone writes "Connected", but the sound is not transmitted, forced clearing of temporary files causes the service to start again from scratch.

Use of engineering menus and hidden codes

For advanced users who aren’t afraid to experiment, there is an access to Xiaomi’s engineering menu, a powerful diagnostic tool that allows you to test the hardware components of the phone, and it is logged in through a standard dialer.

Enter the code ##6484## or ##4636##. If the code is suitable for your model and region, the CIT menu will open, where you can find Bluetooth tests, check the version of the chip, and even reset the module.

What if the code doesn't work?
On many global firmware versions, access to the engineering menu through code is blocked by the manufacturer, in which case you can try downloading a special application from the Play Market store, such as "Activity Launcher", and find the activity of the engineering menu through a search by name "CIT" You can select Bluetooth from the test menu, and often you have the option "Bluetooth Test" or "Version" on the test menu, and clicking on the appropriate buttons can trigger a module reboot. Change of unknown parameters in the engineering menu can lead to unstable operation of the phone. ⚠️ Warning: Do not change the values in the engineering menu unless you are sure of their purpose.Reset should be done only by standard testing methods, not manually editing hex codes. This is a good way to use it when standard settings fail and there is a suspicion of low-level software conflict. However, for most users, the methods described above are sufficient. Device-specific problem solving Sometimes the problem is not with the Xiaomi phone, but with the specifics of interacting with a particular gadget. Devices from different manufacturers can implement A2DP or HFP profiles differently. If the phone does not see the headphones or smartwatch, try resetting the peripheral device itself. Many headphones have a combination of buttons for reset (hard reset). Usually, this is a long-term hold on the phone at the same time as the new phone will see the problem with the frequency of their phone, after the new phone is the new speaker reset. It's also worth checking if power saving mode is on for Bluetooth applications. MIUI Aggressive battery optimization can kill the background communication process. Go to the battery settings and make sure that Bluetooth system services have a "No Limits" limit. The table below shows the frequent symptoms and the solutions that follow: Symptoms Possible Reason Phone doesn't see headphones Headphones not in pairing mode Reset headphones, keep buttons clamped Intermittent sound Wi-Fi interference or low charge Switch Wi-Fi frequency to 5 GHz Connection error in auto Profile conflict Remove phone from memory tapes Do not The microphone is running Profile failure HFP Forget the device and create a pair again Prevention and firmware update The stability of wireless modules depends on the quality of the software. Xiaomi regularly releases updates that fix bugs in the Bluetooth stack.If you have problems, first check the relevance of the version. MIUI. Go to Settings. → About the phone and click on the system version. If you have an update, install it. Often, you'll find the phrase "Improved Bluetooth stability" in the patch notes, which is a direct indication of fixing these bugs. Also, keep an eye out for peripheral app updates. If you use Xiaomi or Mi Band branded headphones, the Mi Fitness or Xiaomi Earbuds app can also get firmware updates for the devices themselves, which solves many compatibility issues. 💡Useful tip: Periodically (once a month) completely discharge and charge the Bluetooth headset. This helps calibrate the power controller and prevents software freezes. Remember that using unofficial firmware or obtaining superuser rights (Root) can disrupt the operation of Bluetooth drivers. If you installed custom software, the problem may be incorrect kernel assembly. Frequently asked questions (FAQ) Will reset the network settings of my personal photos and contacts? No, the operation "Reset Wi-Fi, mobile networks, and Bluetooth" affects only the configuration of connections. Your photos, contacts, messages and installed applications will remain intact and with the FAQ. Why do not necessarily transfer the phone to the power buttons to the Bluetooth mode. It's also possible that the headphones are already connected to another nearby device. Can you reset Bluetooth without losing Wi-Fi passwords? MIUI You can't separate these functions when you reset. A network reset always removes both Bluetooth pairs and stored Wi-Fi networks at the same time. This is done to solve the problems with the radio module in a complex way. What if Bluetooth is completely lost after the reset? If, after resetting and rebooting, the Bluetooth icon has disappeared or turned grey and is not turned on, it may have affected the drivers or hardware. Try resetting the phone completely to factory settings. If this doesn't help, there's likely a hardware malfunction of the module. 💡In most cases, the problem is solved by simply removing the device from the list and re-pairing, without the need for complex manipulations.