Why Xiaomi itself turns on Bluetooth: 7 reasons and how to fix it

Have you noticed that your Xiaomi or Redmi Bluetooth turns on on its own, even though you turned it off? This is a common problem that occurs on devices with a MIUI shell — from the budget Redmi Note 10 to the flagship Xiaomi 13 Ultra. And the behavior can be different: the module activates after a reboot, during calls, when you connect headphones or for no apparent reason at all.

In most cases, it's not a hardware failure, it's a software failure. The manufacturer has integrated several smart features into MIUI that automatically control Bluetooth to improve the user experience. However, sometimes these mechanisms work too aggressively — or even fail. In this article, we'll look at all possible causes, including hidden settings, firmware bugs and even viruses, and give step-by-step instructions for diagnosing and fixing the problem.

If you use Xiaomi with custom firmware (like LineageOS or Pixel Experience), there may be even more reasons for spontaneously turning on Bluetooth, in which case we recommend first checking the stability of the firmware and the availability of updates from developers.

1. Automatic connection to devices (Smart Bluetooth)

The most common reason is the built-in Smart Bluetooth feature, which automatically turns on the module when previously paired devices are detected, an option activated by default on most Xiaomi devices and works even if you manually disabled Bluetooth in the notification panel.

It's useful for connecting to headphones, smartwatches, or car radios quickly, but it often gets inappropriate. For example, if someone else's device with the same name as your headphones comes near, the system might try to connect to it. Or Bluetooth will turn on just because you've passed your Mi Band smart bracelet.

• 🔍 How to check: Go to Settings → Connections and sharing → Bluetooth and find the Automatic Connection or Smart Bluetooth.
• ⚙️ How to disable: Deactivate the slider next to the option. MIUI This item may be hidden in additional settings (icon) ⋮ top-right).
• 📱 Exception: On Xiaomi 12/13 series POCO F4/F5 This function can be called fast connection).

If Bluetooth still turns on itself after this option is turned off, move on to the next point, and it is also worth considering that on some MIUI 14+ firmware, the function can be activated again after the system update.

2. Background processes and system applications

Bluetooth can be activated because of the background services that use the module to transmit data.

• 🎧 Headphone apps (like Mi Earphones, Haylou Fun, or Soundcore) scan the airwaves for devices, even if you don't use them.
• 🚗 Automotive applications (Android Auto, Mi Car or Yandex.Navigator) that include Bluetooth for synchronization with the tape recorder.
• 🏠 Smart Home: Mi Home, Google Home or Yandex Smart Home can activate the module to find new devices.
• 📱 System services MIUI, such as com.xiaomi.bluetooth or com.miui.bluetooth, which sometimes fail.

How to diagnose:

1. Open Settings → Applications → Application Management.
2. Press three points (⋮) Select Show System Processes.
3. Sort the list by Bluetooth usage or permission.
4. Check which apps have access to Bluetooth and revoke permissions from those who are suspicious.

If you are not sure which app is to blame, you can use the Safe Start mode:

⚠️ Warning: Safe mode shuts down all third-party apps, but system apps work. If Bluetooth stops turning on itself, the problem is exactly one of the apps you installed.

To enter safe mode:


1. Press the power button before the turn off menu appears.




2. Press and hold the item "Switch off" (or "Switch off power").




3. Confirm the entry to safe mode.

3. firmware bugs and update conflicts

If the problem occurred after the MIUI update, it is likely that the firmware bug is to blame, especially for:

• 📱 Xiaomi MIUI 13.0.4–13.0.6 (Bluetooth and Wi-Fi autoactivated bugs known).
• 🔄 Devices after upgrading to Android 13 (e.g. Redmi Note 11 Pro)+ or POCO X4 Pro).
• 🛠️ Smartphones with custom firmware, where Bluetooth drivers are incorrectly ported.

On some devices (e.g. Xiaomi) 11T Pro) The bug is manifested after resetting to factory settings - Bluetooth is turned on every time the camera or gallery is launched. camera2.

How to fix it:

1. Update rollback: If the problem appears after the update, try rolling back to the previous version MIUI through settings → The phone. → Updating the system → Three points (⋮) → Select a Service Package.
2. Cache Cleanup: Go to Settings → Annexes → Application management → Three points (⋮) → Show system-based → Bluetooth and press Clear cache + Clear the data.
3. Reset Network Settings: In Settings → Connections and Sharing → Network Settings Reset, select Reset Wi-Fi, Mobile Network, and Bluetooth settings.

If the bug isn't fixed in the latest firmware versions, you can try manually updating through MIUI bootloader or Xiaomi Community.Occasionally, the manufacturer releases "hot" patches for issues that don't come through OTAs.

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Before resetting your network settings, write down Wi-Fi passwords, they will be erased! They can be exported through the WiFi Password Viewer app (root rights required).

4. Viruses and malware

The unlikely but possible scenario is that a smartphone will be infected with a virus that uses Bluetooth to distribute or collect data.

• 🕵️‍♂️ Scanning Nearby Devices for Vulnerabilities.
• 📤 Transmit data (for example, contacts or SMS) Bluetooth.
• 🔄 Activate a module to mask its activity as legitimate processes.

Signs of infection:

• Bluetooth is enabled even in flight mode (unless manually disabled).
• In Settings → Battery → Battery use unknown processes with high consumption appear.
• The smartphone starts to overheat or discharge quickly for no apparent reason.

How to check and clean:

1. Install an antivirus (Dr.Web, Kaspersky or Malwarebytes) and perform a deep scan.
2. Check the list of installed apps for suspicious ones (such as those with names like Bluetooth Auto Connect or Fast Pair Service).
3. Open Settings → Applications → Special Access → Device administrators and remove rights from unknown programs.

⚠️ Warning: Some viruses masquerade as system applications (e.g. com.android.bluetooth).If you're not sure, don't manually delete anything - better do a factory reset.

Hardware malfunctions

If all the software methods didn't work, the problem could be a physical malfunction of the Bluetooth module or antenna.

• 💥 Falls or bumps (especially if they stop working afterward) NFC).
• 🌊 Moisture infestations (even if the smartphone did not sink, condensation could damage contacts).
• ⚡ Incorrect charging (using unoriginal cables sometimes leads to voltage spikes).

How to diagnose:

• 🔧 Check if Bluetooth is working in Recovery mode (if so, software problem).
• 📡 Try connecting to another device – if the connection is permanently cut, it may indicate a hardware failure.
• 🔍 Check the charging connector and antenna lines (on some models, the Bluetooth antenna is combined with Wi-Fi).

If you suspect a hardware breakdown, you can try:

1. Flash your smartphone through the Mi Flash Tool (sometimes it restores the module).
2. Contact the service center – repair of the Bluetooth module costs 1,500–3,000 ₽ (model-wise).

⚠️ Note: On Xiaomi with a non-removable battery (most models after 2018), self-disassembly is fraught with damage to the plumes.

6 Hidden MIUI features you didn't know about

There are several “features” in MIUI that can include Bluetooth without your knowledge:

• 🔄 Mi Share: If the feature is active, it scans the airwaves for file sharing devices, even if you are not using it.
• 🎵 Mi Sound (Around) on some models (Xiaomi) 12S Ultra, Mix 4) includes Bluetooth to sync sound with other Xiaomi devices.
• 🚗 Car Mode: activates Bluetooth when connected to a charger in the car (even if there is no tape recorder).
• 🏃 Fitness trackers: If you’ve ever synced Mi Band or Amazfit, the system may include Bluetooth for background data synchronization.

How to turn it off:

1. Mi Share: Settings → Connections and Sharing → Mi Share → Turn off the slider.
2. Car Mode: Settings → Additional → Car Mode → Deactivate the option.
3. Fitness sync: Remove the Mi Fitness or Zepp Life app and reset your Bluetooth settings.

On Xiaomi IR-Sometimes there is a conflict between Bluetooth and the remote control. If you use your smartphone as a remote for technology, try to disable IR-port → Connections and sharing → DU remote.

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Even if you have disabled Bluetooth in the notification panel, MIUI system services can activate it again. To completely lock the module, you need to disable all associated functions in the settings.

7. Conflicts with custom firmware and root access

If you have installed custom firmware (LineageOS, ArrowOS, Pixel Experience) or obtained root rights, the problem may be related to:

• 🔧 Incorrect Bluetooth drivers in the firmware.
• 📜 Modified settings in /system/build.prop.
• 🛠️ Magisk module conflicts (e.g., Bluetooth Library Patcher).

How to fix it:

1. Check the error log via Logcat (MatLog application or adb logcat | grep Bluetooth command).
2. Remove all Magisk modules associated with Bluetooth or network.
3. Reflash your smartphone to the official MIUI and check if the problem persists.

On some custom firmware, replacing the Bluetooth stack with an alternative one (e.g. BlueDroid) helps, but this requires deep knowledge and can lead to unstable operation.

If you are using Xiaomi.EU (unofficial firmware for global devices), upgrade to the latest version – they often fix bugs with autoactivation modules.

FAQ: Frequent questions