How to check the Bluetooth version on the Xiaomi Redmi smartphone: all working methods

Are you trying to connect your Xiaomi Redmi headphones, speakers or fitness bracelets, but the devices are not finding each other? Or do you want to know if your Bluetooth 5.2 smartphone supports multiple gadgets at once? The Bluetooth version is a key parameter that determines data speed, range and accessory compatibility.

In this article, we will discuss all the current ways to check the version of Bluetooth on Xiaomi Redmi, including hidden methods through the engineering menu and third-party applications.You will learn how Bluetooth versions 4.2, 5.0, 5.1, 5.2 and 5.3 differ in specifications, and why even in the official specifications of Xiaomi sometimes indicate inaccurate data.

Why it is important to know the Bluetooth version of Xiaomi Redmi

The Bluetooth version not only affects the speed of file transfer, but also the functionality of the connected devices.

• 🎧 Headphones TWS supportive LC3 (Bluetooth 5.2+) Provide better sound quality with less power consumption.
• 🕒 Bluetooth 5.0 smartwatches last longer on battery power thanks to optimized protocol LE Audio.
• 🎮 Gamepads (e.g. Xiaomi Game Controller) require Bluetooth 4.2+ minimum-delayed.

In addition, newer versions of the protocol address interference issues (e.g., when working near a 2.4GHz Wi-Fi router) and increase the range to 240 meters under ideal conditions (Bluetooth 5.0+).If your Redmi can’t see the device at a distance of more than 10 meters, the problem may be with the outdated version of the module.

⚠️ Warning: Manufacturers often specify the maximum supported version of Bluetooth in the smartphone’s specifications, but real firmware may limit it. For example, Redmi Note 9 Pro officially supports Bluetooth 5.0, but some regional firmware only works 4.2.

Method 1: Checking through standard Android settings

The easiest method is to look at the version in the settings menu. It works on all Xiaomi Redmi smartphones running MIUI 12+:

1. Open the Settings app (the gear icon on the home screen).
2. Go to About Phone (in some versions of MIUI – About Device).
3. Put on the item All characteristics or information about the software.
4. Scroll down to the Network block, and there will be a Bluetooth line with the version.

If the Bluetooth item is not in the specs, try an alternative path:

1. Open Settings → Connections and Sharing → Bluetooth.
2. Turn on Bluetooth and tap on the three-point menu (⋮) top-right.
3. Select Additional or Bluetooth Information – sometimes the version is displayed there.

Update MIUI last-minute|Reboot your smartphone|Try an alternative method (see below)|Check for custom firmware availability-->

Method 2: Use of the Engineering Menu (MTK/Qualcomm)

If the standard settings don’t show the version, you can check the engineering menu.This method works on all Xiaomi Redmis, but you need to be careful – don’t change the settings unless you are sure about their purpose!

Instructions for Qualcomm Snapdragon processors (most Redmi models):

1. Open the Phone app and enter the combination: ##4636##.
2. In the menu that opens, select Phone Information.
3. Scroll down to the Bluetooth block – there will be a Bluetooth version string.

For MediaTek processors (e.g. Redmi 9A/9C):

1. Enter ##36446337## (or #3644633## on some models).
2. Go to the Hardware Testing tab.
3. Select Bluetooth – the version will be listed at the top of the screen.

⚠️ Attention: On some firmware MIUI The engineering menu can be blocked, and if nothing happens after you enter the code, it means that the function is disabled by the manufacturer. Do not try to unlock it through third-party applications, this can disrupt the Bluetooth module.

Method 3: Diagnostic applications (AIDA64, DevCheck)

If the system methods don't work, third-party utilities will come to the rescue, and we recommend two proven applications:

AIDA64

1. Download AIDA64 from Google Play.
2. Open the application and go to the System section.
3. Select Bluetooth, and there will be a Bluetooth version string.

DevCheck

1. Install DevCheck.
2. Launch the app and go to the Hardware tab.
3. Scroll to the Bluetooth block – the version will be listed next to the chip name (e.g. Qualcomm WCN3990, v5.1).

The advantage of these apps is that they show not only a version of the protocol, but also a Bluetooth chip model (like the Broadcom BCM4356 or Qualcomm WCN3998).

AIDA64|DevCheck|CPU-Z|Other|Not using.-->

Method 4: Checking through ADB (for advanced users)

If you're familiar with ADB (Android Debug Bridge), you can recognize the Bluetooth version through the command line.This method is suitable for all Xiaomi Redmi models, but requires a PC connection.

Instructions:

1. Enable USB debugging in the developer settings (Settings → About Phone → MIUI version – tap 7 times, then go back to Additional settings → For Developers).
2. Connect your smartphone to your PC and open the command line (Windows) or terminal (macOS/Linux).
3. Enter the command: adb shell getprop ro.bluetooth.version or alternative: adb shell dumpsys bluetooth_manager
4. In the output, find the line with the version (e.g. Bluetooth version: 5.0).

If the command doesn’t work, try getting a full Bluetooth data dump:

adb shell dumpsys bluetooth_adapter

⚠️ Attention: Use ADB Do not change Bluetooth settings via setprop commands - this can lead to unstable operation of the module or complete loss of communication.

Method 5: Checking the model of the smartphone (compatibility table)

If none of the methods worked, you can find out the Bluetooth version from your Xiaomi Redmi model, and we have compiled a table with the current data for popular devices:

Note that in some regions (e.g. Redmi Note 10 Pro in India), the Bluetooth version may be different from the global model, due to different processors or local firmware optimization.

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If your model is not listed in the table, check its characteristics on the official Xiaomi website. Type the name of the model in the search bar and go to the "Specifications" tab.

Frequent problems and solutions

Sometimes users are faced with the fact that:

• 🔍 The Bluetooth version doesn't show up in either settings or apps.Solution: Update the firmware MIUI Up to the latest version or reset your network settings (Settings) → System system → Resetting settings → Resetting network settings).
• 🔄 Bluetooth is unstable (disconnected, slow speed) Solution: Turn off Wi-Fi - both technologies are operating at 2.4 GHz and can interfere with the Internet.
• 📱 The smartphone does not find devices with Bluetooth 5.0+. Solution: Check if Dual Audio is enabled (in some firmware it blocks new device search).

If the Bluetooth version has “downgraded” (e.g. from 5.0 to 4.2) after the MIUI update, this may be due to:

• 🛠️ Firmware error – try reinstalling the update via Recovery.
• 🔒 Local policy: some operators (e.g. China) restrict Bluetooth functionality.
• 🔄 Module conflict – if you’ve recently changed the motherboard, the new Bluetooth chip may be the older version.

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If after all the checks, the Bluetooth version is lower than the specified specifications, contact the Xiaomi service center.

FAQ: Frequent questions about Bluetooth on Xiaomi Redmi