Practical guide to fixing Bluetooth problems on Xiaomi phones

If your Xiaomi's Bluetooth keeps disconnecting, turning on by itself, or causing problems with headphones, you're not alone: ​​these are more common issues than you might think, and they can almost always be fixed from within the phone itself. In this practical guide you will find quick tests, key adjustments and step-by-step solutions for MIUI and HyperOS, plus lesser-known tricks that make all the difference.

It should be noted that some of the technical information differs from the brand's documentation and forums, and some comes from sources automatically translated from English, which explains certain nuances in wording. We have gathered everything and rewritten it with clarity and Spanish language. So you can follow along without complications and restore a stable connection to your devices. Let's get started. Practical guide: how to fix Bluetooth problems on Xiaomi phones.

Common causes: why Bluetooth fails or turns on by itself

One of the most common reasons why Bluetooth seems to have a "life of its own" occurs when you turn Wi-Fi on or off. At that moment, Google services launch processes to scan for nearby devices. which can force Bluetooth to start. This is not by chance: the system attempts to locate accessories and networks as part of its connectivity routines.

Is it dangerous if it turns on by itself? In principle, no. Pairing something with your mobile phone requires a manual actionSo, no one will be able to connect to your phone without your permission. However, if your Xiaomi automatically connects to a speaker, watch, or car that you already had paired, you might notice unusual behavior, such as your phone not ringing or calls being routed through the hands-free device.

In battery life, the impact is usually subtle, but it exists. With Bluetooth turned on, there is always background power consumption. Because advertisement packets (UUIDs and other identifiers) are periodically broadcast so that accessories can find you. Even with the device "hidden," the Bluetooth stack maintains some activity.

From a privacy standpoint, that UUID and the advertising signal could be used to infer the device's location if someone tracks it. It's not something you'd normally do on a daily basis, but it's good to know if you want to minimize your exposure.Turning off Bluetooth when not in use reduces the attack surface and wireless trail.

Quick diagnostics in MIUI/HyperOS: hardware and status tests

Before touching settings, check that the physical Bluetooth module is working properly. MIUI and HyperOS include hidden diagnostic menus to check the hardware without external apps.

Bluetooth test with the CIT menu

The “CIT menu” allows you to test each component of the mobile phone individually (SIM, SD, LED, camera… and of course Bluetooth). You access it like this: Settings > About phone > All specifications and tap five times in a row on Kernel Version until the menu opens.

1. Sign in Settings > About phone.
2. Press on All specifications.
3. Press 5 times on Kernel version to open ITC.

Within CIT you will see a list of tests. Choose the Bluetooth test and run it. If the hardware is working correctly, a success message will appear. and you can press “OK”. If it fails, it's likely a hardware problem and you should consider contacting technical support.

Engineer menu by code: status and extra test

You can also access an alternative diagnostic panel from the Phone app. Open it, go to the dialer and enter the code *#*#6484#*#*You'll find tools to test Bluetooth, Wi-Fi, camera, color, software version, and more. It's a straightforward way to rule out hardware errors before making any configuration changes.

System settings you should check

If the hardware is fine, it's time to fine-tune the system. In MIUI and HyperOS, there are permissions, automations, and scans that can turn on Bluetooth without you noticing.Review the following points.

Apps that activate it from the back

Some apps, even those from Google Play, request Google Services to activate Bluetooth to detect nearby devices, avoiding asking for visible permissions. Uninstall or disable the most suspicious ones (especially games or utilities that don't need Bluetooth) and updates all others to their latest version.

1. Go to Settings> Bluetooth.
2. Sign in Additional adjustments (if it appears).
3. Check in Settings> Applications Which apps have permission to manage nearby or Bluetooth devices?

If you still have doubts, start your mobile phone in Safe Mode to temporarily disable third-party apps. If Bluetooth stops turning on automatically in Safe ModeYou already know that the culprit is some recently installed app.

Advanced permissions and auto-start in HyperOS

HyperOS has refined permission management and background behavior. Revoke unnecessary permissions related to nearby devices, health, or sports to apps that shouldn't use Bluetooth.

1. Opens Settings.
2. Sign in Applications.
3. Accede to Permissions and check categories like “Nearby Devices”.
4. En Autostart in the backgroundIt prevents irrelevant apps from starting up on their own.

This will prevent an app from launching processes that force the Bluetooth radio. The fewer apps with sensitive permissions, the fewer unwanted activations..

Concentration modes and automations

The system's "focus modes" and automations can activate connections when certain conditions are met (connecting the charger, opening an app, arriving at a location, etc.). Check that no mode or routine is configured to turn on Bluetooth. when activated.

Check it in the Security app or in Settings if you have the automations section: Settings > Special functions > AutomationLook for actions like “When you plug in the charger” or “When you open YouTube Music”. Remove or edit routines that mention Bluetooth.

Pay attention to the “Wi-Fi and Bluetooth Search”

There is a continuous scanning function that keeps searching for networks and devices even with the switches turned off. If you have it enabled, the system can reactivate Bluetooth. to complete the scan.

1. Go to Settings.
2. Sign in Location.
3. Tap on Wi‑Fi and Bluetooth Scanning.
4. Turn off the Bluetooth-related option to prevent the system from turning it on by itself.

With this box unchecked, the system stops forcing the scan and Automatic reactivations cease in most cases.

Try safe restarts and resets before resorting to drastic solutions

When there are many accumulated changes, a network configuration cleanup usually fixes dropouts and erratic pairings. MIUI integrates a specific reset for Wi-Fi, mobile networks, and Bluetooth that doesn't delete your photos or apps.

• Opens Settings.
• Go to Connect and share.
• Scroll down to “Other” and enter Restart Wi-Fi, mobile networks, and Bluetooth.
• Balance Hola to apply the parameter reset.

This reset erases pairing preferences and network caches, while keeping your personal data intact. After doing so, wait a couple of minutes before turning on Bluetooth. to ensure the processes start cleanly. If possible, also restart your phone and wait a few more minutes.

If the problem persists after resetting and restarting, It's time to think about a repair or more in-depth software measures. (as you will see below).

Updates and patches: what's new in HyperOS/MIUI

Good news: Xiaomi is rolling out an update to the Bluetooth services framework that aims to improve stability. Improves pairing, expands compatibility with third-party headphones, and optimizes power consumption, in addition to reducing random errors during audio/video playback.

Its installation is simple: Go to Settings > Bluetooth and look for the updates sectionDownload over Wi-Fi and the process is applied automatically without manual restarts. The rollout is global for HyperOS and MIUI and is arriving in phases depending on the model.

A specific problem has also been reported that Xiaomi is already investigating. Some users experience dropouts and interruptions in Bluetooth accessories. with two models in particular:

• LITTLE X5 Pro 5G with HyperOS OS2.0.1.0.UMSRUXM, OS2.0.3.0.UMSMIXM and OS2.0.3.0.UMSEUXM.
• Xiaomi 11 Lite 5G with OS2.0.1.0.UKORUXM, OS2.0.1.0.UKOMIXM and OS2.0.1.0.UKOEUXM.

The company has acknowledged the error on its forums and is working on an over-the-air (OTA) fix. If you own one of these models, keep an eye out for the next HyperOS update. because they should fix the outages once and for all.

What if the problem appeared right after updating to a major version (for example, from MIUI 11/12 to a newer one)? Sometimes initial patches don't work well on "older" installations. First, try all the above settings and wait for the next OTA update.If it doesn't improve, consider a factory reset with a previous backup.

More quick solutions and best practices

Besides deep adjustments, there are simple measures that can save you headaches in seconds. Start with the basics and level up only if necessary.

• Try other Xiaomi Bluetooth headphones to rule out that the fault lies with the accessory.
• Temporarily turn off Wi-Fi and connect the Bluetooth to avoid interference and simultaneous scans during pairing.
• Update the system and music/health apps do interfere with the connection.
• If your headphones have multipointDisconnect them from other devices before pairing them with the Xiaomi.

Keep in mind that you should know How to pair Xiaomi headphones: Some enter pairing mode by holding down the power button; others require a single tap followed by opening the case lid, etc. Check the manufacturer's manual if your device is not listed.

If you don't wear accessories daily, Keeping Bluetooth turned off when you don't need it saves some energy and improves security.If you rely on a watch or headphones, naturally you'll need to keep them on; prioritize permission settings and automations to avoid unexpected reactivations.

Factory reset and hard reset (only if the above does not work)

When all of the above fails and the problem appears to be persistent software, a "hard reset" can leave the installation clean. Always back up important photos, videos, and files (and within WhatsApp, create a copy of chats) before starting.

Factory reset from settings

1. Go to Settings.
2. Sign in Over the phone.
3. Search Factory reset.
4. Toca Delete all data and confirm with your security method.

This process completely erases the mobile phone and reinstalls the system. After restoring, configure Bluetooth from scratch and test before loading app backups. in case one of them was causing the conflict.

Hard reset from recovery mode

If the installation came from older versions and carries over problematic files, a hard reset will leave everything as if it were brand new. With the phone turned off, press and hold power + volume up until you see the Xiaomi logo.

1. Browse with volume up to Wipe Data / Clear Data and confirm with the power button.
2. Then select Reboot System Now.

When it restarts, configure the system and pair an accessory to test. If Bluetooth works perfectly after the hard resetThe problem was in remnants of previous software.

When to contact support and technical service

If the CIT test fails, if you cannot pair anything even after a hard reset, or if Bluetooth disappears from the settings, It's most likely a hardware problemIn that case, first contact Xiaomi's official support for guidance and, if applicable, arrange for a repair.

You can go to the official technical service or to the store where you bought the device. The warranty may not cover liquid damage or impacts.However, in most cases, factory repairs for connectivity issues are covered if there is no misuse. Support also compiles similar cases and provides updated guidelines.

FAQs

Why does Bluetooth turn on by itself on my Xiaomi?

This usually happens for two reasons: the “Wi-Fi and Bluetooth Search” functionwhich keeps scanning active even if you turn off the switch, and apps with permissions for nearby devices They ask Google Services to activate the radio to detect accessories.

Does it pose a security risk if it activates automatically?

It's not serious because To connect, you need to pair manually.Even so, it may consume slightly more battery and emit Bluetooth advertisements (UUIDs) that, in theory, could be used to track the device.

How do I check if the problem is with the hardware?

Use the CIT modeGo to Settings > About phone > All specifications and tap Kernel version five times. Run the Bluetooth test. If it fails, it points to a physical problem.If it passes the test, the cause is usually software-related.

With CIT testing, permission review, disabling location scanning, network reset, and the latest updates, The vast majority of Bluetooth issues on Xiaomi devices are resolved.In isolated cases with known bugs, simply wait for the patch; if nothing works, technical support is the fastest way to regain a stable connection.