How to find out the Bluetooth version in a Xiaomi phone: all the ways from settings to ADB

Why it is important to know the Bluetooth version of a Xiaomi smartphone

The Bluetooth version has a direct impact on data speed, connectivity stability and compatibility with other devices, from headphones to smartwatches. For example, Bluetooth 5.0 supports speeds up to 2 Mbps and ranges up to 240 meters in ideal conditions, while Bluetooth 4.2 is limited to 1 Mbps and 60 meters. If your Xiaomi Redmi Note 12 does not connect to wireless headphones Sony WH-1000XM5, the problem may lie in the incompatibility of protocol versions.

Manufacturers often don’t specify the Bluetooth version in the specifications of the device on the box or in the documentation. For example, the official specifications of the Xiaomi 13 Ultra can only specify “Bluetooth”, without specifying the version. This creates confusion when choosing accessories or diagnosing connection problems. Fortunately, there are several ways to find out the exact version, from standard settings to hidden engineering menus.

In this article, we’ll look at 5 working methods, including ADB validation for advanced users, and learn how the Bluetooth version is related to the MIUI version and why the protocol can roll back after a firmware update.

Method 1: Checking through standard MIUI settings

The easiest method is to use the built-in MIUI tools. It is suitable for most Xiaomi, Redmi, POCO and Black Shark, Released models after 2018. However, there is a caveat: in some firmware, the Bluetooth version may not display correctly (for example, Bluetooth 5.1 instead of 5.2).

Instructions:

1. Open the Settings app (cog icon).
2. Go to About Phone (or Device in new MIUI versions).
3. Find All Characteristics (may be called Specifications or Hardware Information).
4. Scroll down to the Wireless Networks block – there will be a Bluetooth string indicating the version.

If there are no features, try an alternative path:

• 🔍 Settings → Connections and sharing → Bluetooth → Click on three dots in the upper right corner → Version.
• 📱 In some models (for example, POCO F5) version is displayed in the Settings menu → System system → Updating the system → Three points. → Version. MIUI.

⚠️ Note: On custom firmware devices (such as LineageOS or Pixel Experience), this method may show the wrong version.

Method 2: Using Diagnostic Applications

If standard settings don't show the Bluetooth version, third-party utilities will come to the rescue, not only displaying the protocol version, but also testing connection speeds, checking compatibility with other devices, and even showing you how to use the protocol. MAC-adapter.

Top.-3 check-in:

• 📊 AIDA64 — Shows complete hardware information, including the Bluetooth version and supported code (e.g., aptX or codex) LDAC).
• 🔧 DevCheck – a free utility with a user-friendly interface, displays the Bluetooth version in the Hardware section.
• 📡 Bluetooth Scanner is a specialized application for analyzing nearby Bluetooth devices and checking the version of your adapter.

How to use AIDA64:

1. Install the app from Google Play.
2. Open the Device section → Bluetooth.
3. The Bluetooth version bar will specify the current version (e.g. Bluetooth 5.3+LE).

The advantage of this method is additional information about supported profiles (A2DP, HFP, AVRCP) and codes. For example, if your Xiaomi 12T Pro does not support LC3 (a codec for Bluetooth LE Audio), you will understand why Sony WF-1000XM5 headphones are not working at full power.

Method 3: Viewing information through the Engineering Menu (MTK)

On Xiaomi smartphones with MediaTek processors (such as the Redmi Note 11 or POCO M4 Pro), the Bluetooth version can be recognized through a hidden engineering menu. This method requires caution - wrong actions can disrupt the Bluetooth module.

Instructions for MediaTek:

1. Open the Phone app.
2. Enter the code ##4636##
3. In the menu that opens, select Phone Information (or Phone Information).
4. Scroll down to the Bluetooth block – there will be a Bluetooth version string.

For Qualcomm Snapdragon processors (such as Xiaomi 13 or Black Shark 5), the engineering menu is called by a different code:

##2254##

After entering, the Bluetooth Test menu will open, where the protocol version will be indicated at the top of the screen.

⚠️ Warning: Do not change the settings in the engineering menu unless you are sure of their purpose! HCI Snoop Log can cause device connection failures.

Method 4: Checking through ADB (for advanced users)

If previous methods have failed, you can find out the Bluetooth version through ADB (Android Debug Bridge), which is suitable for all Xiaomi models, but requires a connection to a computer and the activation of the developer mode.

Step-by-step:

1. Enable Developer Mode: Go to Settings → About Phone. Tap 7 times on MIUI Version. Go back to Settings → Additional → Developer. Activate USB Debugging.

Connect your phone to your PC through USB-cable (use the original cable for a stable connection).

CMD

Terminal

adb devices

Make sure your device is listed.

Bluetooth

adb shell dumpsys bluetooth_manager

In the conclusion, find the Bluetooth version string.

Example of output for Xiaomi 12S Ultra:

Bluetooth version: 5.3




Supported features: LE, EDR, BLE Audio, Dual Audio

If the output command does not have a line with the version, try the alternative command:

adb shell getprop | grep bluetooth

⚠️ Attention: Use ADB Do not execute commands that you do not know the purpose of, which can cause system failure or data loss. For example, the adb shell pm clear com.android.bluetooth command will reset all stored Bluetooth devices.

💡

If ADB doesn’t recognize the device, upgrade your USB drivers on your PC or try another cable, and check if File Transfer (MTP) mode is on when you connect.

Method 5: Analysis of the technical specifications by model

If none of the above methods worked, you can find out the Bluetooth version from the smartphone model, and you will need the official Xiaomi website or a database of specifications.

How to find information:

1. Go to Mi.com or GSMArena.
2. Enter your device model (e.g. Redmi K50 Gaming).
3. In the Specifications or Connectivity section, look for the Bluetooth bar.

If none of the solutions worked, the Bluetooth module itself may have failed. In this case, contact the Xiaomi service center - self-repair can lead to a loss of warranty.

FAQ: Answers to Frequent Questions