Bluetooth in Xiaomi smartphones is a key module for wireless communication with headphones, speakers, fitness bracelets and even automotive systems. However, users often face situations when devices are not connected, communication is interrupted or data transmission problems. 80% of cases are caused by an outdated version of the Bluetooth protocol or software errors in the module drivers. Updating this component can significantly improve connection stability and add support for new features, such as LE Audio or LC3 for headphones.
Unlike a general firmware update via MIUI, a Bluetooth update requires a separate approach. The manufacturer rarely releases separate patches for this module - usually patches come along with monthly security updates or major updates to the MIUI version. But there are alternative methods, from manually installing regional firmware to using an engineering menu. In this article, we will discuss all the current ways to update Bluetooth on Xiaomi, Redmi and POCO smartphones, including models from 2020-2026, and also explain how to check the current version of the module and fix typical errors.
How to check the current version of Bluetooth on Xiaomi
Before you upgrade, you need to know the current version of the module, which will help you determine whether your smartphone supports modern protocols (for example, Bluetooth 5.2 or 5.3) and whether it needs an upgrade.
- 📱 Through phone settings: go to Settings → The phone. → Full specification: In the "Network" or "Wireless Networks" section, the Bluetooth version will be listed. On some models (for example, Xiaomi 13 Pro), this information is hidden - then use alternative methods.
- 🔍 Using the engineering menu: enter the code ##4636## in the phone application, then select Phone Information. The Bluetooth block will specify the module version and supported profiles (for example, A2DP, AVRCP).
- 🤖 Through apps: install the DevCheck utility or AIDA64 In the Hardware or Network section, you will find detailed information about the Bluetooth version, including codes supported (e.g., aptX, LDAC).
Note: some budget models (e.g. Redmi 9A or POCO M3) may have Bluetooth 5.0, but in fact the device only supports basic features of this standard (without LE Audio or Dual Audio).
⚠️ Note: If the specifications indicate Bluetooth 4.2 or lower and the smartphone is released before 2019 (for example, Xiaomi Mi). A2), Updating the firmware won’t help – the module is limited hardware. In such cases, we recommend using an external Bluetooth adapter (for example, Xiaomi Bluetooth Audio Receiver).
Method 1: Update Bluetooth via standard MIUI update
The safest and most recommended method is to install official MIUI updates. The manufacturer regularly releases patches that include patches for the Bluetooth module, even if the change description does not specify this.
- Open Settings → About the phone → System update.
- Click on the icon «⋮» (three dots) in the upper right corner and select Update Settings.
- Activate Auto boot over Wi-Fi and Notify you of new updates.
- Return to the previous screen and click Check for Updates.
If an update is available, the system will prompt you to download it. MIUI:
- 📌 Stable version: contains verified fixes, but comes out less frequently (every 1-2 months.
- 🧪 Beta version (MIUI Beta: may include experimental Bluetooth features (e.g. Auracast support), but is less stable.Available on request in Mi Community.
- 🌍 Global/Chinese firmware: sometimes Chinese versions get Bluetooth updates sooner. 12T China has received support LE Audio 3 months ahead of the global version.
Important: If your smartphone is locked in a region (e.g., the Chinese model for the domestic market), upgrading through the standard method may result in network loss.
Method 2: Manual update via firmware (Fastboot/Recovery)
If the standard update hasn’t changed and Bluetooth problems persist, you can install the firmware manually, which is suitable for power users and requires unlocking the bootloader (on most Xiaomi models), the advantage of which is that you can choose a specific firmware version where Bluetooth bugs are fixed.
Here's the step-by-step instruction:
- Download the firmware: Official firmware: https://new.c.mi.com/global/miuidownload/index (Custom firmware (like LineageOS or Pixel Experience): may include updated Bluetooth drivers, but lost support MIUI-fit.
Unlock the loader:
Mi Account
Xiaomi
Settings → Additional → For developers → OEM Unblocking Status
Install the firmware:
- Using Recovery: Download the.zip file, put it in the root of the memory, then in Recovery, select Install update.zip.
- Using Fastboot: Use the command fastboot flash all firmware.img (requires PC and Mi Flash Tool).
Once rebooted, the Bluetooth module will be reset to factory settings, which helps in 60% of cases where devices are not connected due to configuration conflict.
💡
If the headphones or column do not connect after resetting Bluetooth, remove them from the list of conjugated devices (Settings → Bluetooth) and perform re-pairing.
Compatibility table: which Xiaomi models support Bluetooth updates
Not all Xiaomi smartphones allow you to update the Bluetooth module software, and here is a table with models for which official and informal upgrade methods are available:
| Model | Bluetooth version | Supported Update Methods | Notes |
|---|---|---|---|
| Xiaomi 13/13 Pro | 5.3 | Official Updates, ADB, Engineering Menu | Supports LE Audio and LC3 with MIUI 14 |
| Redmi Note 12 Pro+ | 5.2 | Official Updates, Fastboot | Problems with aptX Adaptive are solved by firmware |
| POCO F5 | 5.2 | Official updates, custom firmware | There is no Dual Audio in the global version – Chinese firmware is required |
| Xiaomi 11T | 5.2 | Official Updates, ADB | Frequent Mi Band 7 bugs – Resetting the module helps |
| Redmi 10A | 5.0 | Official updates only | Hardware Limitation – Update won’t add new features |
If your model is not in the table, check its specifications on the official Xiaomi website. For devices older than 2020 (for example, Xiaomi Mi 9), Bluetooth updates are unlikely, the manufacturer is focused on supporting new models.
Solving Typical Problems After Bluetooth Update
Even after a successful upgrade, there may be difficulties, and here are the most common problems and ways to fix them:
- 🔌 Devices don't connect: Remove them from the list of conjugates and reconnect. Check if the gadget (e.g. headphones) supports your version of Bluetooth. WH-1000XM5 Bluetooth 5.2 requires+ for LDAC.
- 🎵 Interrupted sound: Turn off Absolute Volume in Settings → Bluetooth → Try another audio codec (e.g., another audio codec, AAC instead SBC).
- 🔋 Fast battery discharge: After upgrading, the Bluetooth module can consume more power. Turn it off if you don't use it, or reset settings (Settings) → Annexes → Application management → Bluetooth → Warehouse → Clear the data).