The Bluetooth module on Xiaomi smartphones sometimes starts to glittle: the devices do not connect, the sound is interrupted, and the settings appear โEruption Errorโ. Most often the problem is solved by simply restarting the module โ but how to do it correctly so as not to aggravate the situation?
In this article, weโll look at 5 proven ways to restart Bluetooth on Redmi, POCO, and Mi series โ from standard methods through menus to hidden commands for power users, and why bluetoothing can fail after a MIUI update, and how to avoid typical headset, speaker, or fitness bracelet errors.
Important: If the problem occurred after a phone drop or moisture, rebooting the module is unlikely to help - you will need a diagnosis at the service center.
1. Standard Bluetooth reboot via settings
The easiest and safest way to do this is to disable and re-enable the module in the settings menu, which works on all versions of MIUI (12 to 14) and is suitable for beginners.
Instructions:
- ๐ฑ Open the Settings app** (cog icon on the home screen).
- ๐ Scroll down and select Connections and Sharing (on some models, just Bluetooth).
- ๐ Turn the Bluetooth slider** to off, wait 10 seconds and turn it back on.
If the problem persists, move on to the next method: On some models (such as the Redmi Note 10 Pro), after switching off Bluetooth, the list of associated devices may reset โ be ready to add them again.
2.Reboot through the Quick Settings Panel
A quick way to restart the bluetooth is to use the top notification curtain, which will work even if the phone's basic settings have got stuck.
How to do this:
- ๐ Find the Bluetooth icon (stylized letter โBโ) and tap it once to turn it off.
If the Bluetooth icon is missing from the curtain, it can be added:
- Click on the icon. โ๏ธ Edit (pencil) in the upper right corner of the panel.
- Find it in the Bluetooth list and drag it to the active area.
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On the POCO F3 and Redmi K40, after upgrading to MIUI 13, the Bluetooth icon from the curtain may disappear, in which case use the first method or read on about hidden commands.
3. reset Bluetooth settings (without data loss)
If the module is turned on but the devices are not connected or the sound is jammed, resetting the settings for Bluetooth alone will help โ it will not affect other phone features.
Step-by-step:
- ๐ฑ Go to Settings. โ Connections and sharing โ Bluetooth.
- ๐ง In the upper right corner, press three dots (โฎ) and select Bluetooth Settings.
- ๐ Slip on โReset Settingsโ** (or Clear Cache on Older Versions) MIUI).
After discharge:
- ๐ง Forgotten devices (earphones, speakers) need to be connected again.
- ๐ If the problem was a profile conflict (e.g, A2DP for sound HFP for calls, it must disappear.
What to do if there is no item "Reset settings"?
4. Forced reboot via ADB (for advanced)
If standard methods don't work, you can restart the bluetooth via Android Debug Bridge (ADB), which requires connecting the phone to a computer, but gives 100% results.
What you need:
- ๐ป A computer with installed Xiaomi drivers and ADB (You can download from the official website).
- ๐ USB-cable (preferably original).
- ๐ฑ Included debugging by USB on the phone (Settings) โ The phone. โ Version. MIUI โ Tap 7 times, then return to the Additional Settings โ For developers).
Instructions:
- Connect your phone to your PC and open Command Prompt (Windows) or Terminal (Mac/Linux) in the ADB folder.
- Enter the command to check the connection: Adb devices should appear serial number of your Xiaomi.
- Execute the command to reboot Bluetooth: Adb shell am broadcast -a android.bluetooth.adapter.action.REQUEST_DISCOVERABLE Next: Adb shell service call bluetooth_manager 8
- Turn off the cable and check the bluetooths.
USB | Installed Xiaomi | Downloaded ADB-tools | Phone connected by original cable-->
โ ๏ธ Attention: Continuous use ADB-The commands may cause failures in other modules (Wi-Fi, GPS). Use this method only if the others do not work.
5.Reboot through the engineering menu (hidden method)
Xiaomi smartphones have a hidden engineering menu where you can manually control communication modules, which works on most models, but requires caution.
How to open the engineering menu:
- Open the Phone app and enter the code: ##4636###
Alternative code for new models (Redmi Note 12, POCO X5):
##232338##โ ๏ธ Warning: Do not change other options in the engineering menu unless you are sure of their purpose. RF Band may disrupt work LTE.
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The engineering menu is a powerful tool, but dangerous. Use only to reboot Bluetooth and don't touch other settings unless you understand them.
Table: Frequent Bluetooth Errors on Xiaomi and Their Solutions
| Problem. | Possible cause | Decision |
|---|---|---|
| Bluetooth is not turned on (grey slider) | Failure of the module or firmware | Reboot your phone or reset via ADB |
| The device is connected, but the sound is interrupted. | Codec conflict (e.g., aptX vs SBC) | In Bluetooth device settings, select Sound Quality Priority |
| The phone can't find other devices. | Visibility down. | Enable Visibility for Everyone in Bluetooth Settings for 2 Minutes |
| After the MIUI update, Bluetooth stopped working. | Driver incompatibility | Reverse to the previous version of the firmware or wait for a patch |
| The headphones are connected, but the microphone is not working. | Incorrect profile (HSP instead of HFP) | Remove the device and connect again |