How to watch the version of Bluetooth Xiaomi: from Redmi Note to Mi 13 Ultra

Have you ever faced a situation where you need to connect a new wireless device to Xiaomi — headphones, fitness bracelet or smartwatch — but are not sure whether your smartphone supports the right version of Bluetooth? Or maybe you want to know why your Redmi Note 12 does not see a device that works perfectly with a friend’s iPhone? The Bluetooth version is a key parameter that determines not only data transfer speed, but also accessory compatibility, connection stability and even power consumption.

In this article, we’ll look at 5 proven ways to find out the Bluetooth version on any Xiaomi device, from the budget POCO M5 to the flagship Mi 13 Ultra. You’ll learn where to look for this information in the system settings, how to extract it through the engineering menu, and even how to determine the version from the model of the chipset. And we’ll also explain why sometimes the real version of Bluetooth can differ from the manufacturer’s stated one – this is an important nuance that few people know about.

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

At first glance, it may seem that the Bluetooth version is just a number that doesn't have much impact on everyday smartphone use, but in practice, it depends on:

• 🎧 Sound quality in wireless headphones (e.g. Bluetooth 5.0 supports codec) LC3, a 5.2 - already LE Audio with less latency).
• 🔋 Energy consumption: new versions save battery power 30-50% accessory-wire.
• 📶 Connection range: Bluetooth 5.0 operates at a distance of up to 240 meters (in theory), whereas 4.2 is a maximum of 60 meters.
• 🤖 Smart device compatibility: some Xiaomi Mi Home gadgets require a minimum Bluetooth 4.2.

For example, if your Xiaomi 11T Pro can’t connect to the new Xiaomi Buds 4 Pro headphones, the problem may be the outdated Bluetooth version. Or vice versa: you buy a used smartphone and want to make sure that it supports modern standards.

⚠️ Warning: Manufacturers often specify the maximum possible version of Bluetooth for the chipset, but in reality it can be limited to firmware. For example, the Snapdragon 888 supports Bluetooth 5.2, but on some Xiaomi models because of the fact that the new version is not available. MIUI Only 5.0 works.

Method 1: Checking through MIUI settings (the easiest method)

If you need to quickly learn the Bluetooth version without installing additional apps, use the standard MIUI settings. This method works on all modern Xiaomi, Redmi and POCO smartphones with the MIUI firmware version 12 and above.

Instructions:

1. Open the Settings app (cog icon).
2. Go to About Phone (or About Device on some models).
3. Slip on the item All features (sometimes called the Full Specification).
4. Scroll down to the Wireless Networks block – there will be a Bluetooth string indicating the version.

The screenshot below shows an example for the Xiaomi 12 Pro:

⚠️ Note: Some devices (especially custom firmware) may not display the actual Bluetooth version in this menu, but the one that the chipset supports. №3 or №4.

Method 2: Use of third-party applications (for advanced users)

If standard settings don’t show the Bluetooth version or you doubt its accuracy, you can use specialized utilities that not only display the version, but also provide additional information about supported profiles (such as A2DP), codecs and even signal strength.

The best applications for this task:

• 📱 DevCheck shows the Bluetooth version, chipset model and other technical data. Free, no ads.
• 🔍 CPU-Z — In the SoC section, you can see the supported version of Bluetooth for your processor.
• 🎛️ Bluetooth Auto Connect – In addition to the version, tests the speed and stability of the connection.

How to use DevCheck:

1. Install the app from Google Play.
2. Open it and go to the Hardware tab.
3. Find the Bluetooth block and the version will be specified (e.g. 5.2).
4. For detailed information, tap the block - a list of supported profiles will open.

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If the app shows a lower version of Bluetooth than the smartphone specs, try upgrading MIUI to the latest version.

Method 3: Engineering menu (for power users)

If you’re not afraid to dig deeper, you can find out the Bluetooth version through a hidden engineering menu, which works on most Xiaomi devices, but it takes care that the wrong actions can disrupt the Bluetooth module.

Instructions:

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.

On some models (e.g. POCO F4), the code may not work, in which case, try an alternative:

##232338##

⚠️ Warning: Do not change any settings in the engineering menu unless you know their purpose.

Method 4: Determining the version according to the chipset model

If none of the previous methods worked, you can find out the Bluetooth version indirectly, based on the model of your Xiaomi processor. Each chipset supports a specific version of Bluetooth, and this information is in the technical specifications.

How to do this:

1. Find out the model of your chipset (via Settings → About Phone → All specs → Processor or CPU-Z application).
2. Check the table below or find the chipset specifications on the manufacturer’s website (Qualcomm, MediaTek).

It’s important to understand that the real Bluetooth version may be lower than the chipset supports if the manufacturer has disabled it at the firmware level. For example, the Snapdragon 732G supports Bluetooth 5.1, but the Redmi Note 10 Pro only runs 5.0 out of the box.

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If your smartphone is on the Snapdragon 865 or newer, but shows Bluetooth 5.0 – this is an occasion to update the firmware or check the device for software limitations.

Method 5: Checking through ADB (for developers)

This is a method that works for those who are not afraid of the command line and want to get the most accurate information, and it requires you to enable USB Debugging and install ADB on your computer, but it gives you 100% accurate results.

Step-by-step:

1. Turn on Developer Mode on your smartphone: go to Settings → About Phone and tap 7 times on the MIUI version.
2. Return to Settings → Additional → For developers and enable USB debugging.
3. Connect your smartphone to your computer and open the command line (or terminal on Mac/Linux).
4. Enter the command: adb shell dumpsy bluetooth_manager
5. Find the Bluetooth version or Local version.

Example of output for Xiaomi 12S Ultra:

BluetoothManager:





Local version: 5.3 (LE Supported)

⚠️ Note: If you see multiple versions (e.g. 5.3 and 5.0) in the command output, focus on the Local version bar, which is the actual version you are using.

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To avoid manually entering a command, you can use Scrcpy utility with Bluetooth logging enabled, which automatically stores the module information in a log file.

Frequent problems and their solutions

Sometimes users find that the Bluetooth version is not properly defined or the device is unstable, and let's look at the typical situations and how to fix them.

Problem 1: The settings display an outdated version

If your Xiaomi shows Bluetooth 4.2, even though the chipset supports 5.0+, the reasons may be as follows:

• 🔄 Outdated firmware (solution: update) MIUI through settings → Updating the system).
• 🛠️ Custom firmware with disabled functions (solution: return to official) MIUI).
• 🔧 Hardware defect of the Bluetooth module (solution: diagnostics in the service center).

Problem 2: Bluetooth is not stable after the update

If you notice after the MIUI update that:

• 🎵 The music in the headphones is interrupted.
• 📱 The connection breaks at a distance of more than 5 meters.
• 🔋 The battery goes down quickly when using Bluetooth.

Try it:

1. Reset network settings: Settings → Connections → Reset your Wi-Fi, mobile network, and Bluetooth settings.
2. Clear Bluetooth cache: Settings → Applications → Application management → Three points → Show system → Bluetooth → Clear cache.
3. Reverse to the previous version of MIUI (if the problem has occurred after the update).

Problem 3: The device can’t see headphones or other gadgets

If your Xiaomi doesn’t find AirDots or Mi Band, even though they’re Bluetooth compatible:

• 🔌 Reboot both devices.
• 🔄 Update the firmware of headphones / gadget through their official application.
• 📱 Remove the device from the list of conjugates and connect again.
• 🛠️ Check if power saving mode is on (it may limit Bluetooth operation).

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If the connection problem is only one device, it's probably not the smartphone's Bluetooth module that's to blame, but the gadget itself. Try connecting it to another phone for diagnostics.

FAQ: Frequently Asked Questions