You're trying to plug in Xiaomi AirDots headphones, Mi Portable Speaker speakers, or Mi Band fitness bracelet, but Xiaomi's Bluetooth is not working hard? The module is not turning on, the devices are not there, the connection is constantly breaking - a familiar situation? This problem is common on all models of the brand, from the budget Redmi Note 12 to the flagship Xiaomi 14 Ultra. And the reasons can be hidden in software failures and hardware malfunctions.
In this article, we’ll look at 12 of the most common reasons why Bluetooth stops working on Xiaomi smartphones, as well as give step-by-step instructions for diagnostics and repairs – from basic steps to hidden MIUI settings that are not covered in the official documentation. You’ll learn how to distinguish a software glitch from an antenna breakdown, why the module can “glut” after a MIUI update, and what to do if the phone sees devices but can’t connect to them.
Important: If you're not sure about your technical skills, some techniques (like factory resets or body disassembly) are best left to a service center. But 80% of Bluetooth problems on Xiaomi are solved without repair - just know where to dig.
Basic checks: what to do first
Before you commit to complex malfunctions, make sure that the problem is not in the trivial things.
Check if Bluetooth is on in the notification curtain
Make sure the device you are connecting to is charged and on.
Reboot your smartphone (hold the power button for 10 seconds)
Try connecting to another device (earphones, column, car)
Update the firmware MIUI last-minute-->
If you've done this, Bluetooth is working, it's a temporary problem, but if the module still doesn't turn on or find the device, move on to the next section.
⚠️ Note: On some Xiaomi models (e.g, POCO F5 or Redmi K60) post-refresh MIUI 14 may miss the "Bluetooth" item in the notification curtain. To return it, go to Settings → Connections and sharing → Bluetooth and turn on the module from there.
2. Software failures: how to fix without resetting
In 60% of cases, Bluetooth on Xiaomi is not working because of conflicts in MIUI, damaged caches or incorrect power saving settings.
- 🔄 Cleaning up Bluetooth cache: Go to Settings → Annexes → Application management → Three points (⋮) → Show all the processes → Bluetooth. Click "Clear Cache" and "Clear Data." Warning: After that, you'll have to pair all the devices again.
- 📱 Disabling battery optimization: MIUI To keep Bluetooth stable, add it to the exceptions: Settings → Battery → Optimizing the battery → All applications → Bluetooth → Choose "No restrictions».
- 🔧 Network reset: This method helps if the problem occurs after connecting to a new Wi-Fi network or VPN. Go to Settings. → SIM-maps and mobile networks → Resetting network settings.
- 🛠️ Enabling Developer Mode: Sometimes it helps to force Bluetooth on via ADB. To do this: Activate the Developer Mode (7 once you click on the version MIUI In Settings → On the phone, turn on the debugging. USB In Settings → Additionally. → For developers, plug your phone into your PC and execute the command: adb shell am start. -n com.android.settings/.Settings$BluetoothSettingsActivity
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If after cleaning the cache, Bluetooth stopped turning on at all, do not panic - this is a temporary MIUI bug. Reboot the phone and wait 2-3 minutes: the module will restore work automatically.
3.Firmware conflicts: what to do after the MIUI update
Many users complain that Bluetooth stopped working after the MIUI update, especially for transitions between major versions (for example, from MIUI 13 to MIUI 14).
- 🐛 Driver incompatibility: New firmware may contain errors in the Bluetooth module (especially on older models like the Redmi Note 9 Pro).
- 🔒 Blocking of uncertified devices: MIUI 14+ Blocks connection to devices without Bluetooth certification SIG (For example, some Chinese headphones).
- 📦 Damaged firmware files: If the update was interrupted or installed through Recovery, system files could be damaged.