Bluetooth is not enabled on Xiaomi: all the reasons and ways to fix

You try to connect your headphones, speaker or fitness bracelet to your Xiaomi smartphone, but the Bluetooth module stubbornly refuses to turn on? The button in the curtain is inactive, an error appears in the settings and the devices do not find your phone? This problem occurs on models from the Redmi Note 10 to the flagship Xiaomi 14, and its causes can be hidden in software failures and hardware malfunctions.

In this article, we will examine all possible reasons why Bluetooth stops working on Xiaomi devices, from banal user errors to hidden defects of the motherboard. You will receive step-by-step instructions for diagnostics and repairs, including commands for the engineering menu, resetting settings and even recommendations for choosing a service center. MIUI 14/15, where the problem is often associated with system optimization.

If you're not a techie, don't worry, we've explained it in plain language, without too much jargon. ADB-So let's start with the obvious and gradually move on to the complicated cases.

1. Checking basic settings: what you might have missed

Before you go down, make sure that the problem isn’t trivial. According to service centers, 30% of Bluetooth calls on Xiaomi are solved in two clicks.

The first thing to do is:

• 🔄 Reboot your smartphone. Hold the power button for 10 seconds before the menu appears, then select Reboot.This will reset the temporary Android kernel errors that can block the module.
• 📱 Check the notification curtain. Sometimes the Bluetooth button is just hidden - swipe down twice and find the icon (if it's not there, press it). ⚙️ → Edit the panel).
• 🔍 Go to settings: Settings → Connections → Bluetooth. Make sure the switch is active. If it's gray and it doesn't press, the problem goes deeper.
• ⚡ Check the energy saving mode. MIUI There's an Ultra Mode feature that turns off background processes, including Bluetooth. → Battery. → Energy saving regime.

If the module has not worked after this manipulation, move to the next section. MIUI — In this case, the reset of network settings will help (more about this below).

2. Software failures: from cache to firmware

In 60% of cases, the fault is not “iron”, but software. MIUI It's known for its optimizations, which sometimes conflict with Bluetooth drivers:

Clearing the cache and data of the Bluetooth module

A cluttered cache can block the module.

1. Open Settings → Applications → Application Management.
2. Click on the three dots in the upper right corner and select Show System.
3. Find Bluetooth (or Bluetooth Share) and open it.
4. Click Clear the cache and Clear the data.
5. Reboot the phone.

If Bluetooth turned on after that, but disappeared again after a while, the problem is in the background. Try turning off auto-optimization for this application in the battery settings.

Resetting network settings

This procedure removes all stored Wi-Fi networks, Bluetooth devices and VPN, But it often solves the problem:

Open the Settings. → The phone.

Press 5 times on the version MIUI (to unlock the developer menu)

Back to Settings → Additionally. → Resetting settings

Select Reset Wi-Fi, Mobile Network and Bluetooth Settings

Confirm the action.-->

Once you reset, the phone will reboot. Try turning on Bluetooth -- if there was a problem with the settings conflict, it will work.

Updating or rolling back firmware

If the malfunction occurred after the update MIUI, try:

• 🔄 Update to the latest version (sometimes bugs are fixed in the following patches). → The phone. → Updating the system.
• 🔙 To do this, download the firmware from the Xiaomi Firmware Updater site, select your model and version. MIUI (for example, V14.0.5.0.TMBCNXM For the Redmi Note 12).

If Bluetooth worked after the rollback, the problem was in the firmware, in which case you should wait for the next update or use custom builds (for example, Xiaomi.EU).

3. Conflicts with other modules and applications

Bluetooth may not be enabled due to conflicts with:

• 📶 Wi-Fi and mobile network. On some chipsets (e.g. Snapdragon) 6xx/7xx) The modules share one antenna. Try turning off Wi-Fi and mobile data, then turn on Bluetooth.
• 🎵 Music apps.Spotify, YouTube Music and even the standard Mi Music player sometimes block the module.Close them through recent apps.
• 🛡️ Antiviruses and optimizers. Software like Clean Master or 360 Security can kill Bluetooth processes. Delete them or add a module to exceptions.
• 🔌 USB-If you've connected your phone to your PC in mode ADB, Try to disable debugging in Settings → For developers.

To check for conflict, turn on Safe Mode:

1. Press the power button before the menu appears.
2. Press and hold Turn off until the offer appears to go to Safe Mode.
3. Confirm and wait for the reboot.

If Bluetooth is running in Safe Mode, it's the third-party app's fault. Uninstall programs one at a time, starting with the last ones installed.

💡

In the models with MIUI 15 (e.g. Xiaomi) 13T) It can help to disable the Smart Transfer feature in Bluetooth settings. It sometimes blocks the module when searching for devices.

4. Hardware malfunctions: when you need to service

If the software methods didn't work, the problem could be the hardware.

How to diagnose a hardware breakdown:

1. Check if the module is defined in the system. To do this, install the DevCheck app and find the Hardware section. → Bluetooth. If it's empty or it says Unsupported, the chip is faulty.
2. Look at the physical condition of the phone, and if it falls, if it gets moisture, if it blows up, or if it blows up, it's probably the contact problem.
3. Connect your phone to your PC and type in the command: adb shell dumpsys bluetooth_manager If there is a line of state in the answer: OFF (Turning on failed – This confirms the hardware failure.

⚠️ Warning: Don't try to disassemble your phone yourself to repair an antenna or chip! Xiaomi models use adhesive joints and brittle plumes after 2020. Incorrect intervention can lead to complete loss of warranty and damage to the display.

5. Specific bugs of Xiaomi models

Some Xiaomi lines have unique Bluetooth issues, and here are the most common ones:

5.1. Redmi Note 10/11 and POCO M4: error after updating MIUI 14

These models are updated to MIUI 14.0.2.0, a bug appears in which Bluetooth is turned on but immediately shuts down:

• Back on. MIUI 13.0.8.0 via Fastboot.
• Or install Xiaomi.EU (unofficial firmware without bugs).
• In extreme cases, disable automatic updates in Settings → The phone. → Updating the system → ⚙️ → Auto-update.

5.2. Xiaomi 12/13: conflict NFC

On flagships with Snapdragon chip 8 Gen 1/2 Bluetooth may not work if it is enabled NFC. This is due to the Qualcomm controller. WCN6750. Decision:

1. Turn it off. NFC In Settings → Connections → NFC.
2. Reboot the phone.
3. Turn on Bluetooth, it should work.

5.3. Redmi 9/9A: power-saving

On budget models MIUI It's aggressively optimizing background processes, making Bluetooth work smoothly:

• Add Bluetooth app to battery exceptions: Settings → Battery → Choice of applications → Bluetooth → No restrictions.
• Turn off the Deep Optimization function in the developer settings.

💡

If your Xiaomi model is released before 2021 (like the Redmi Note 8 Pro), check for updates for the Bluetooth chip via the Mi app. PC Older firmware may not support modern protocols (e.g, BLE 5.2).

6.Diagnostics through Engineering Menu and ADB

For advanced users: If standard methods don’t help, you can check the status of the module through hidden menus.

Engineering menu (CIT)

Instructions for entry:

1. Open the Phone app.
2. Enter the code: ##4636###.
3. Select Phone Information.
4. Scroll down to the Bluetooth block.

If you have Disabled or Error in your status, the module is defective. If Enabled is not working, the driver is the problem.

6.2. ADB-diagnostics

Connect your phone to a PC with installed ADB-driver and perform:

adb shell


su




service call bluetooth_manager 6

If the command returns Result: Parcel(0000000000000001...) the module does not physically respond. If Result: Parcel(00000000000000000000000...) is a software problem.

For forced Bluetooth activation:

adb shell am start -a android.bluetooth.adapter.action.REQUEST_ENABLE

⚠️ Attention: Teams ADB This can cause data loss or soft-brick if entered incorrectly. Do not use them unless you are sure of your actions. For models with a locked bootloader (Xiaomi 14, Redmi Note 13), you first need to unlock through the Mi Unlock Tool.

7.When to contact the service: the criteria for choosing a workshop

If you've exhausted all options and Bluetooth still doesn't work, it's time to carry your phone for repair.

• 🔧 Official status: Xiaomi Authorized Service centers give a 6-12 month warranty, but can overprice. Unofficial workshops are cheaper, but the risk of poor repairs is higher.
• 📋 Diagnostics. A good service will check the phone for free and make an estimate. If you want money to look inside, go ahead.
• 💰 Cost of spare parts. Compare prices: Antenna Bluetooth/Wi-Fi: 800–1 500 ₽ (original. Bluetooth chip: 2 000–4 000 ₽ (depending on the model: 1 500–3 000 ₽.
• ⏱️ Repair antenna takes 1-2 days, replacement of the chip - up to 5 days (if you need to order a part).

List of official Xiaomi services in Russia:

• Xiaomi official website (select your city).
• Partner centers: Communication Service, TechnoDrive, iService.

Before the visit:

1. Make a backup of the data (Settings → Additional → Backup).
2. Remove the password from the lock screen (masters may need access).
3. Bring a box and a check (if the phone is guaranteed).

8. Alternative methods of data transmission

While the phone is being repaired, other connection methods can be used:

To transfer files between Xiaomi and another phone, it is convenient to use:

• 📲 Mi Drop (built-in app, works on Wi-Fi).
• 🌐 Snapdrop (https://snapdrop.net) — web-service.
• ☁️ Cloud storage (Mi Cloud, Google Drive).

FAQ: Frequent questions about Bluetooth on Xiaomi