Xiaomi’s current MIUI or HyperOS smartphones have powerful wireless modules that can remember dozens of gadgets. Over time, the list of connected devices grows, including forgotten headphones, smartwatches or car systems, not just visual noise, but also a potential source of connection or data leakage problems.
Many users are wondering how to remove a Bluetooth device on Xiaomi when the standard “forget” method doesn’t work or the desired gadget is not on the current list of available, often when selling a phone, changing an account or fixing software glitches that interfere with the work of new accessories.
In this article, we will take a look at all the ways to clean up your connection history, learn how to forcely remove a device through a developer menu, clear the cache of system services, and use hidden commands to completely reset the communication module.
Why You Should Remove Old Bluetooth Connections
The accumulation of a large number of saved profiles can negatively affect the stability of the smartphone. The operating system periodically scans the environment for known networks, which consumes battery power and creates an extra load on the processor. This is especially true if the list includes devices that you have long sold or lost.
And then there are digital security issues, and if you've connected to public audio systems or other people's cars, in theory, those devices could have access to your contacts or call history when you pair them again, and deleting those records is a mandatory procedure before you resell the gadget or transfer it to another user.
Cleaning the list also helps solve technical problems: If a new headphone refuses to mate, claiming that "device is busy" or "connection error," it often helps to delete all old profiles. This causes the Bluetooth module to start searching from scratch, ignoring conflicting entries in the system's database.
Standard method of removal through settings
The easiest and safest method is available to every user directly from the main menu, and you first need to go to Settings and select Bluetooth, and this will show a list of all previously paired devices, even if they are now turned off or out of range.
Find an unnecessary gadget in the list and click on the gear icon or arrow to the right of the name. In the menu that opens, select the option “Unplug” or “Forget the device.” The system will request confirmation of the action, after which the entry about the gadget will be deleted from the memory of the phone.
☑️ Pre-deletion check
It is important to note that the interface may differ slightly from one version of MIUI firmware to another, and in some cases the delete button is hidden in the top corner of the screen or requires a long press on the device name. If the standard path does not lead to the desired result, it is worth trying alternative methods.
⚠️ Warning: After the device is removed, the pairing keys will be erased. Reconnecting will require re-interpreting the gadget to pair mode and entering a confirmation code.
Using the Developer Menu for Advanced Users
If the standard menu does not allow you to remove the device or the Forget button is inactive, the developer menu will come to the rescue. This hidden section contains deep system settings to allow you to control the Bluetooth adapter at a lower level. To log in, go to Settings → About phone and quickly click on the build number (MIUI Version) 7 times.
Once activated, a new option will appear in the settings menu, Additional (or Advanced Settings), where you need to select Developer For. Scroll down to Network or Bluetooth. Here you can find the option Bluetooth AVRCP version or Maximum number of connected devices, changing which can reset current connections.
However, the most effective method in this section is to completely reset the Bluetooth stack settings. Find the option to turn off absolute volume or similar codec settings, switching which sometimes forcibly breaks the suspended connections.
How to Reset Bluetooth Settings via Engineering Menu
Clearing the cache and data of the Bluetooth system service
Sometimes the problem isn't with the device itself, but with corrupted cache files that the system service stores. To do that, go to Settings → Applications → All applications. In the upper right corner, click three dots and select Show System Processes.
In the list that appears, find the Bluetooth or Bluetooth MIDI Service app. Go inside and select Memory. Here you click the "Clean" button and confirm action for all options (cache and data) This will force the service to stop and delete the database of paired devices.
After this procedure, the phone can restart itself, or you have to manually do it. The next time you turn on, the list of Bluetooth devices will be empty. This method is especially effective when the phone "sees" the device but can not connect to it due to a protocol error.
| Action. | Impact on data | Need for a reset |
|---|---|---|
| Forget the device | Remove only the selected profile | No. |
| Clearing the service data | Remove ALL Bluetooth profiles | Recommended |
| Resetting network settings | Remove Wi-Fi, Bluetooth and mobile networks | Yes. |
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If after cleaning the Bluetooth service data, the sound in the navigation is lost, reconfigure the audio routing in the Bluetooth device menu (click on the gear next to the device).
Radical measures: Resetting all network settings
When none of the above methods work, you have to reset your network settings completely, and this action will bring all your connection settings back to factory values. Keep in mind that this step will remove not only Bluetooth devices, but also stored Wi-Fi passwords and mobile network settings.
To perform the operation, go along the path: Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. The system will warn of the consequences. Once confirmed, the phone will restart, and all network modules will be cleaned.
This method is guaranteed to solve problems with "ghost" devices that appear in the list but are not removed, and it also helps if the phone has stopped seeing new gadgets from overflowing the internal address table.
⚠️ Before resetting, make sure you remember passwords from important Wi-Fi networks, as it will be impossible to recover them from your phone’s memory after this procedure.
Solving problems with undeletable devices
There are situations where a device appears as “Connected” but the delete button is inactive or disappears. Often this is due to the background processes of the apps that use the gadget (such as a fitness tracker app or a car-based Head Unit). Close all running apps through the multitasking menu and try to delete the device again.
Another reason is active debugging or working in the background of Google system services: Try to switch your smartphone to Avia Mode for 10-15 seconds, and then turn on Bluetooth again, which will break the active connection and can "freeze" the control interface.
If the device belongs to a remote Google account or is associated with administrator rights (rarely, but it happens in corporate profiles), its deletion may be blocked by the security policy. → Passwords and security → Device administrators and disable suspicious rights.
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If the device cannot be removed by standard methods, the most effective solution is to clean the data of the system application “Bluetooth” through the application management menu.