How to Clean up the List of Bluetooth Devices on Xiaomi: The Complete Guide

Modern Xiaomi smartphones running MIUI shells or the new HyperOS accumulate a huge amount of service information during operation. One such data storage is a wireless module that stores the history of all gadgets ever connected. Over time, this list becomes not only bulky, but can cause unstable operation of the smartphone itself, causing delays in finding new devices or sudden connection breaks.

Users often face a situation where the phone stops seeing headphones or smartwatches, although there were no problems before. In most cases, the root of the evil lies in the crowded cache or conflicting profiles of old devices that the system tries to poll in the background. Cleaning up the Bluetooth list is not just a cleanup, but a necessary step to optimize the operation of the radio module.

In this article, we will take a look at all the available methods for removing conjugated gadgets, from standard settings to using the engineering menu. You will learn how to properly reset network settings to avoid losing important data, and what hidden features are available to owners of Xiaomi equipment for deep diagnosis of communication problems.

Why you need to remove old conjugations

Many smartphone owners mistakenly believe that having dozens of old devices on the “forgotten” list has no effect on the system’s performance. However, the Android operating system, in conjunction with the MIUI shell, stores encryption keys and profiles for every gadget ever connected, which puts a strain on the system partition of data and can lead to software conflicts, especially if you change accessories often.

The main reason to clean is to fix authorization errors, so when you try to reconnect your device, your phone may use an outdated security key stored during the first (pairing), and the profile conflict causes the gadgets to either not connect at all or to malfunction, losing sound or interrupting file transfer.

⚠️ Before removing all devices, make sure you remember passwords or have access to your main gadgets (watches, trackers), as after cleaning them you will have to pair them again from scratch.

In addition, removing unnecessary records frees up space in the Bluetooth system cache, which is especially true for budget models with little internal memory, which helps speed up the initial search for available devices when the module is turned on.

Standard removal through the settings menu

The easiest and safest way to clear your connection history is to use the operating system's standard interface, which is suitable for removing specific devices you no longer plan to use, or for selectively cleaning the list, and you need to activate the wireless module in the notification curtain or through the settings menu.

Go to Settings → Bluetooth, which will show a list of all previously paired devices, even if they are now off or out of the access zone, find the unnecessary gadget and click on the gear icon or arrow to the right of the name to open additional settings.

In the menu that opens, select the option “Unpair” or “Forget device.” The system will request confirmation of the action, then delete the profile and access keys. If you need to remove all devices, this process will have to be repeated for each item in the list individually, since the “Delete all” button in the standard Android menu usually does not.

It is important to note that after this procedure, the device will disappear from the list of available, but its cache may temporarily remain in the system.

Complete reset of network settings

If manually removing dozens of devices takes too long, or if the system is not working properly, perform a full network reset, which returns all network settings of the Xiaomi smartphone to factory values, including Wi-Fi, mobile Internet and Bluetooth.

To perform the operation, go to Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. In some versions of MIUI, this item may be in Advanced Settings → Recovery and Reset. Beware: this step will remove all saved Wi-Fi passwords and APN access point settings.

Once you click the Reset button, the phone can reboot, which is the normal behavior of the system, which is necessary to apply changes at the driver level, and once turned on, the Bluetooth module will be completely clean, just like on a new device.

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Before resetting your network settings, take a picture of your mobile operator’s important APN settings to quickly restore the internet if the automatic setup doesn’t work.

Cleaning up the Bluetooth service cache

Sometimes the problem is not the records themselves, but the corrupted temporary files of the service that runs the module, in which case cleaning the cache of the system application helps, a method that is safe for the user's personal data, but requires access to hidden system processes.

Open the Settings menu → Applications → All apps. In the upper right corner, click on three dots and select "Show System Processes." In the list that appears, find the Bluetooth or Bluetooth MIDI Service app. Go inside and select "Storage".

Click the Clear button (or Clear cache if available separately) and this action will force the Bluetooth service to close and delete all temporary files, including possible logging errors or frozen search tasks, and the module will then restart automatically.

⚠️ Note: Do not confuse the "Clean" button with the "Delete" or "Reset" button if they lead to the complete removal of system updates for this component.

This method is especially useful if Bluetooth on your Xiaomi is unstable: it spontaneously shuts down, does not see the device, or quickly lands the battery.Cache reset often solves software glitches without the need for complete flashing.

Using the Engineering Menu for Diagnostics

For advanced users who have not been helped by standard methods, there is an access to the engineering menu, which is a hidden part of the system, designed to test hardware components, and you can perform a deeper diagnosis and reset of communication modules.

To enter the menu, open the Phone app and type ##6484##. If the code doesn't work, it may be blocked by the operator or firmware version. From the menu, select Bluetooth or Bluetooth Test.

Inside the test mode, you can run an automatic module check, if the test shows an error, it may indicate a hardware malfunction of the antenna or chip. BT Address or Config where you can reset MAC-address or configuration.

Using the engineering menu requires caution: changing unknown parameters can lead to incorrect operation of the radio module, it is recommended only to review the status of tests or perform standard testing procedures without changing the values in the configuration files.

Solving Typical Problems After Cleaning

Once you have cleared the list of Bluetooth devices on Xiaomi, there may be situations that require additional action. For example, some devices may not want to mate again, remembering the old conflict key on their side.

If the headphones or watches don’t connect, try to force them to pair (usually by holding the power button or a special button for a long time). On your smartphone, make sure that the Bluetooth settings include the “Visibility for all devices” option, if any, in your version of MIUI.

It’s also worth checking for permissions for apps. If you’re using a third-party file manager or player to transfer data, make sure they have access to Bluetooth. This is done through Settings → Apps → [Application Name] → Permissions.

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If, after a complete cleanup and reset, the Bluetooth network continues to work incorrectly, the problem may be hardware or require a factory reset of the entire phone with data loss.

In rare cases, a firmware update helps. Xiaomi developers regularly release patches that fix bugs in wireless drivers. Check for updates in About Phone → MIUI/HyperOS version.