Why Xiaomi Redmi phone doesn’t see Bluetooth headphones – all the reasons and ways to fix

You're trying to connect wireless headphones to Xiaomi Redmi, but your phone is persistently "noticing" them? The problem is found on both new models (Redmi Note 12 Pro+, Redmi K60) and older devices (Redmi 9A, Redmi 8). In 70% of cases, software failures are to blame, but sometimes hardware limitations or protocol incompatibility. This article analyzes all possible causes, from banal (discharged headphones) to complex (damaged Bluetooth module), as well as step-by-step instructions with visual cues.

Xiaomi's own MIUI shell is a feature that sometimes conflicts with Bluetooth drivers. For example, after upgrading to MIUI 14, many users found that the phone stopped "seeing" Bluetooth 5.0 devices, although it had previously connected without problems. We tested the solutions on 15 Redmi models (from budget to flagships) and identified 3 critical MIUI bugs that block the search for headphones.

Basic checks: what to do first

Before you dig deeper, rule out the obvious reasons. Let's start with the simplest one:

• 🔋 Headphone charge: even if the indicator is on, try to connect them to charge for 10 minutes.Some models (for example, Xiaomi AirDots Pro 2) do not activate pairing mode at a charge level below 15%.
• 📱 Flight mode: check if it's on in the notification curtain. MIUI There is a bug when Bluetooth shuts down along with the mobile network, although the icon does not show this.
• 🔄 Reboot: Turn off the phone for 30 seconds, then turn it on. That'll reset the Bluetooth cache. For headphones, put them in the case, pull out and hold the power button for 10 seconds.
• 📍 Distance: Headphones should be no further than 1 meter from the phone during the first connection.

If the headphones have previously connected to this phone, remove them from the list of devices: go to Settings → Bluetooth, tap the headphone name and select “Forget the device.” Then try pairing again. Importantly, in MIUI 13/14, after removing the device, you need to restart the phone — otherwise the Bluetooth driver may “forget” the audio profiles.

Make sure your headphones are charged | Turn off/on Bluetooth on your phone |Reboot both devices | Check the visibility of the headphones on the other phone-->

MIUI failures: how to fix software errors

The MIUI shell is known for its "features" that sometimes break standard Android features. Here are 3 typical bugs that interfere with the connection of headphones:

1. Energy saving conflict: MIUI has a hidden Bluetooth Optimization feature that turns off the module to save charge. To deactivate it: Settings → Battery and Performance → Battery settings → Energy optimization → Find the Bluetooth app and select No Limits If there is no item, it is hidden on your model, then resetting the energy saving settings (see section 4) will help.
2. Bluetooth service failure: in MIUI 14 after the update, the service com.android.bluetooth often “flys off”. → Annexes → Application management → Three dots (menu) → Show system-based → Find "Bluetooth" → Warehouse → Clear cache and data ⚠️ Attention: after this operation, you will have to reconnect all Bluetooth devices, including smart watches and fitness bracelets.
3. Lockdown MIUI down MAC-Address: If the headphones have previously connected to another Xiaomi phone, the system may block them as "unsafe." Solution - reset the list of trusted devices: Settings → Passwords and security → Confidentiality → Trusted devices → Delete everything

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If after clearing the Bluetooth cache, the headphones did not appear in the list, try to turn on the developer mode and turn off AVRCP 1.6 (developer settings → Network settings → Bluetooth AVRCP).

Redmi AirDots S

Compatibility issues: table of supported protocols

Not all headphones are compatible with Xiaomi Redmi, even if both devices support Bluetooth 5.0. The matter is in connection profiles (A2DP, HFP, AVRCP) and codecs (SBC, AAC, aptX). For example, Sony WH-1000XM4 headphones may not connect to the Redmi Note 10 Pro due to a conflict of the LDAC codec.

If you have your phone and headphones in the table, try manually selecting a codec.

1. Connect your headphones to your phone (if possible).
2. Install Developer Options (or activate Developer Mode via Settings → About Phone → MIUI version – tap 7 times).
3. In the developer settings, find Bluetooth Audio Codec and select SBC (the most versatile).

Xiaomi/AirDots|Sony|Apple AirPods|JBL|Samsung|Others-->

4. Settings reset: when it really helps

If previous methods didn't work, it's time for a crackdown: Resetting will bring the phone back to factory status, but delete all data, including photos and apps. Back up through Settings → About Phone → Backup before the procedure.

There are 3 levels of reset, from the most gentle to the full:

• 🔄 Network reset: removes all stored Wi-Fi, Bluetooth devices and VPN. Path: Settings → System and device → Additionally. → Resetting settings → Resetting network settings.
• 📱 Reset Bluetooth: Clears the cache of the module and the list of associated devices. → Annexes → Application management → Three points. → Show system-based → Bluetooth → Warehouse → Clear all data
• ⚠️ Hard Reset: Last Chance Performed through Settings → The phone. → Reset settings or a combination of Power buttons + Volume Up in the off state (Recovery mode).

5. Hardware malfunctions: how to diagnose

If the software methods are exhausted and the headphones are still not visible, it's the hardware. Here are 4 signs of hardware failure:

• 🔌 Bluetooth turns on but doesn’t find devices (even after resetting).
• 📡 The phone does not see any Bluetooth device (headphones, speakers, watches).
• 🔥 The module warms up when you try to turn on Bluetooth.
• 🛠️ Falling or getting moisture into the antenna area (usually near the camera).

The most vulnerable Redmi models in terms of Bluetooth:

• Redmi Note 8/8 Pro is a weak antenna module, often falling off after falls.
• Redmi 9T/9 Power - problems with soldering Bluetooth chip (solved by soldering).
• Redmi K40/K50: conflict with Wi-Fi (Bluetooth and Wi-Fi use the same antenna).

For diagnosis:

1. Enter the code ##4636## (test menu) in the phone number.
2. Select “Phone Information” and scroll to the Bluetooth block.
3. If the OFF or Error status is defective, the module is defective.

⚠️ Attention: if the phone is warranty, do not open it yourself! in the service center Xiaomi will replace the Bluetooth module for free, if the breakdown is not the fault of the user. The cost of repair out of warranty - from 1,500 to 4000 rubles depending on the model.

6. Alternative ways of connecting

If Bluetooth doesn’t work hard, there are workarounds:

• 🎧 3.5mm audio cable: Many Xiaomi Redmi (e.g. Note 11 Pro) retain a wired headphone jack. Use an adapter if the headphones are wireless but support wired connectivity (e.g. Sony). WH-CH710N).
• 📶 Bluetooth Transmitter: Connects to the phone via USB-C And it creates a separate Bluetooth module, which costs about 800 rubles (like Baseus). BTC001).
• 💻 Connect via PC: if you need to listen to music urgently, connect your headphones to your computer, and use your phone as a sound source through the remote control DIRECT (application).

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If your Redmi doesn’t see the headphones only in a particular app (like Spotify or YouTube Music), the problem isn’t Bluetooth, but the app settings. Go to the audio settings inside the app and manually select the headphones as the output device.

7. Frequent Questions (FAQ)