Bluetooth Cleanup on Xiaomi Redmi: A Complete Guide with Instructions

Bluetooth on Xiaomi Redmi smartphones is often a source of problems: devices are not connected, the sound is interrupted, and garbage accumulates in the list of stored gadgets. Cleaning the cache, resetting the settings or removing unnecessary devices helps to return the stable operation of the module. But how to do this correctly without disrupting other functions?

In this article, we have 5 proven ways to clean Bluetooth with Redmi Note 12/11/10, Redmi 9/8, POCO X3/X4 and other models, from simple deleting devices to deep reset system files, and a unique method for MIUI 14/15 that is not described in the official documentation of Xiaomi.

Before you start, make sure that the problem is Bluetooth, not the connected device. Try connecting it to another smartphone or laptop. If the error repeats, clean the module on Redmi. If not, the problem is in the headset, speaker or other gadget.

1. Remove stored Bluetooth devices

The easiest way to clean up is to remove all unnecessary devices from the smartphone memory, which frees up space in the system cache and eliminates conflicts when connected.

How to do this:

1. Open Settings → Connections and Sharing → Bluetooth.
2. Press the gear (⚙️) Next to the name of the device you want to remove.
3. Choose to Delete or Forget the device.
4. Confirm the action.

If the list of devices is too long, use mass deletion:

• 🔹 Tap and hold the first device in the list.
• 🔹 Check all unnecessary gadgets.
• 🔹 Click Remove from the top menu.

⚠️ Note: After removing the device, you will have to re-enter the password (PIN-The next time you connect, Xiaomi AirDots or Redmi Buds do not require this, they connect automatically.

2. Clean up Bluetooth cache through application settings

The Bluetooth cache stores temporary data about connections that may become corrupt over time, and clearing it helps to eliminate errors such as "Device failed to connect" or "Device not found."

Instructions for MIUI 14/15:

1. Go to Settings → Applications → Application Management.
2. Press three points (⋮) In the upper corner and select Show Systems.
3. Find Bluetooth (or Bluetooth Share on some firmware) in the list.
4. Open the Warehouse. → Clear the cache.

On older versions of MIUI (up to 12.5), the path may differ:

• 🔹 Settings → All applications → Bluetooth
• 🔹 Memory. → Clear the cache

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If after cleaning the cache, Bluetooth stopped turning on, restart the smartphone. This will reset temporary system locks.

Don’t confuse cache and data! Clearing up data will result in the reset of all stored devices and may disrupt other features such as Mi Share or Quick Share.

3. Reset Bluetooth settings to factory

If cleaning the cache doesn’t work, the next step is to completely reset your Bluetooth settings, which will return the module to the post-purchase state, but will not affect other smartphone features.

How to reset your settings:

1. Open Settings → About the phone → Reset settings.
2. Select Network Settings Reset (on some models – Wi-Fi, mobile network, and Bluetooth Reset).
3. Confirm the action with a password or pattern lock.
4. Reset the device.

After discharge:

• 🔹 All stored Bluetooth devices will be removed.
• 🔹 Wi-Fi and mobile internet settings will also reset (write down passwords in advance!).
• 🔹 The Bluetooth name will be restored (usually Redmi). XXXX or MI XXXX).

⚠️ Note: On some Xiaomi firmware, network reset can disable Double SIM Or VoLTE. After restart, check your mobile settings in Settings. → SIM-maps and mobile networks.

4. manually delete Bluetooth files (for advanced)

If standard methods don't work, you can manually delete Bluetooth configuration files, which requires root rights or access to ADB, but gives you 100% cleanup.

Instructions via ADB (without root):

adb shell


su




rm -rf /data/misc/bluedroid/*




rm -rf /data/misc/bluetooth/*




reboot

What these teams do:

• 🔹 rm -rf /data/misc/bluedroid/* — removes the cache and Bluetooth settings.
• 🔹 rm -rf /data/misc/bluetooth/* — Clears files of associated devices.
• 🔹 Reboot – Reboots the smartphone to apply changes.

For users with root rights:

• 🔹 Use Root Explorer or FX File Manager.
• 🔹 Go to the folders. /data/misc/bluedroid and /data/misc/bluetooth.
• 🔹 Delete all files inside (not the folders themselves!).

5. Update of firmware and Bluetooth drivers

Sometimes Bluetooth problems are caused by outdated drivers or bugs in the firmware.Updating MIUI to the latest version often solves the problem.

How to update firmware:

1. Open Settings → About the phone → System update.
2. Click Check for updates.
3. If a new version is available, download it and install it.

If the update doesn’t help, try to roll back to the stable version:

If Bluetooth is not working after the update:

• 🔹 Make a reset to factory settings (but it will delete all data!).
• 🔹 Check if the module is blocked by an antivirus (for example, Avast or 360 Security).

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Updating the firmware is the most reliable way to fix Bluetooth software errors, but requires data backup.

6. Hardware diagnostics (if nothing helps)

If none of these methods worked, the problem could be in the hardware:

• 🔹 The Bluetooth module is damaged (for example, after falling or getting moisture).
• 🔹 Oxidation of contacts on the motherboard.
• 🔹 Antenna malfunction (rarely, but happens on Redmi Note) 9/10).

How to check:

1. Connect your smartphone to your PC and start the Mi Flash Tool.
2. Check the logs for errors such as "Bluetooth hardware failed".
3. If you have access to the service menu (type ##4636##), select Bluetooth test.

Signs of hardware malfunction:

• 🔹 Bluetooth is not turned on at all (button is inactive).
• 🔹 The smartphone doesn’t find any devices, although other phones can see them.
• 🔹 Constant reboots when trying to turn on the module.

⚠️ Warning: If your smartphone is warranty, don't disassemble it yourself! Contact Xiaomi Service Center. Self-repair will deprive you of warranty service.

FAQ: Frequent questions about Bluetooth cleanup on Xiaomi Redmi