How to find out the Bluetooth version on a Xiaomi smartphone: all working methods

You try to connect wireless headphones, a fitness bracelet or a speaker to Xiaomi, but the devices can’t see each other? The reason may lie in the incompatibility of Bluetooth versions. For example, headphones with Bluetooth 5.2 will not be able to use all the functions on a smartphone with Bluetooth 4.2, and old headsets will refuse to connect to new flagships. To avoid problems, you need to know exactly which version of the module is installed in your Redmi, POCO or Mi.

In this article, we will discuss 5 proven ways to find out the Bluetooth version on Xiaomi Android smartphones, from standard settings to hidden engineering menus. You will also find a version compatibility table and answers to frequent questions about connection problems. All methods are tested on current MIUI 14 and HyperOS firmware (2026).

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

Many users are faced with wireless devices that are unstable: communication is interrupted, the sound is broken, and the headphone battery goes down faster than stated, most often due to the difference in Bluetooth protocols.

• 🔊 Sound quality: Version 5.0+ support codec LC3 (for LE Audio, which gives you better sound with less power consumption. On Bluetooth 4.2, you'll only get a better audio experience. SBC or AAC — markedly inferior.
• 🔋 Energy efficiency: Newer versions (e.g. 5.2) reduce battery consumption by 30-50% compared to 4.0 when transferring data.
• 🎮 Latency: 5.0 is important for gamers or controllers+ — It reduces the delay to 10-20 ms (vs. 100)+ ms at 4.2).
• 🔗 Transfer speed: Bluetooth 5.3 provides up to 2 Mbps (in theory), whereas 4.2 is limited to 1 Mbps.

Also, some features (like dual connection to two devices at once or file transfer over LE Audio) are only available on the latest versions of the protocol, and if your Xiaomi doesn’t support the right version, you’ll either have to put up with the restrictions or change your smartphone.

Method 1: Using the standard Android settings (the easiest)

This is a basic method that works on all Xiaomi smartphones regardless of the model and version of MIUI. However, it does not always show accurate information - some manufacturers hide the details of the protocol.

Open the Settings app|Go to the About Phone section.|Tap on item All characteristics (or General information)|Find the Bluetooth string-->

If only the version is specified in the specifications (for example, Bluetooth 5.0), this means that the smartphone supports all subversions of this standard (for example, 5.0, 5.1, 5.2).

⚠️ Note: Some Redmi budget models (e.g. Redmi) 9A) Bluetooth 5.0 can be displayed in the settings, although it is actually a 5.1-enabled chip. Use methods 3 or 4 to verify the exact details.

Method 2: Using AIDA64 (maximum accuracy)

AIDA64 (formerly CPU-Z) is a Swiss knife for diagnosing smartphones, showing the real version of the Bluetooth chip, not the one claimed in the firmware, and is especially useful for devices with custom firmware or after upgrades that may have cropped the module's functionality.

Download the app from Google Play (the free version is enough) and follow the instructions:

1. Open AIDA64 and give all the permissions you need.
2. Go to the Device (or Device) section.
3. Select Bluetooth.
4. The Bluetooth Version bar will specify the exact version (e.g. 5.2).
5. In the line Address (Address) — MAC-Module address (useful for diagnosing connection problems).

AIDA64 also features a chip maker (like Broadcom or Qualcomm) and supported Bluetooth profiles (like A2DP for audio or hands-free) to help you understand why some features (like file transfer) may not work.

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If AIDA64 displays version 4.2 but you’re sure your smartphone is newer, check for firmware updates. Sometimes manufacturers block new Bluetooth features in older versions of MIUI.

Method 3: Through the Engineering Menu (for advanced users)

Engineering menu (Engineer Mode) is a hidden section of Android, where you can see hardware data that is not available in standard settings.The method is suitable for Xiaomi models on Qualcomm chipsets (for example, Redmi Note 10 Pro or POCO X3 Pro).

Warning: Incorrect actions in the engineering menu can disrupt the Bluetooth module. If you are not sure, use method 2 (AIDA64).

Instructions:

1. Open the Phone app and type the combination: ##4636## Some models may require code: ##2254###
2. Select the phone information (Phone Information) item.
3. Scroll down to the Bluetooth section.
4. The Bluetooth Version bar will specify the version (e.g. 5.1).

If the combination does not work, try an alternative method:

1. Install the MTK Engineering Mode app (for MediaTek chipsets) or Qualcomm Engineer Mode.
2. Run it and go to Hardware Testing → Bluetooth.
3. Stick to Version Info.

⚠️ Attention: On some firmware MIUI The engineering menu can be blocked. AIDA64 Check the model features on the official Xiaomi website.

Method 4: According to the smartphone model (compatibility table)

If you can't identify the Bluetooth version software, you can identify it from the smartphone model. Below is a table with popular Xiaomi, Redmi and POCO devices, Released in 2019-2026, taken from official specifications and tests.

If your model is not in the table, check its specs on the official Xiaomi website or in the GSMArena database. Note that the Bluetooth version depends on the chipset, not on the smartphone model. For example, the Snapdragon 8 Gen 2 always supports Bluetooth 5.3, regardless of whether it is installed in the Xiaomi 13 or OnePlus 11.

Method 5: Through ADB-teams (for developers)

This method is suitable for those familiar with Android Debug Bridge (ADB), which allows you to get full information about the Bluetooth stack, including supported profiles and protocol versions, you will need a computer with ADB drivers installed and enabled USB debugging on your smartphone.

Instructions:

1. Turn on Developer Mode on Xiaomi: Go to Settings → About Phone. Tap 7 times on the line MIUI Version. Go back to Settings → Additional → For Developers. Activate Debugging on USB.

cmd

Terminal

adb shell dumpsys bluetooth_manager

In the conclusion, find the Bluetooth AdapterProperties bar - there will be a version.

adb shell dumpsys bluetooth_manager | grep -i "version"

This method provides the most accurate data, but requires skills to work with ADB. If you have never used debugging over USB, you should choose one of the previous methods.

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ADB-commands show not only the Bluetooth version, but also supported protocols (e.g., the Bluetooth version, LE Audio or Dual Audio, which is not possible to know through standard settings.

Frequent problems and their solutions

Even if you learn the Bluetooth version, you may have problems connecting devices, and here are the most common situations and ways to solve them:

• 🔴 Device won't find smartphone: Make sure Bluetooth is on both devices. Reboot your smartphone and device (e.g. headphones). A2DP (for sound) or (for headsets).
• 🔊 Sound interrupted or distorted: Disable other connected devices (they may interfere). In Bluetooth settings on your smartphone, select High Sound Quality (if available). Check if your audio device supports aptX codec or LDAC (They make a better sound than SBC).
• 🔋 Fast battery drain when using Bluetooth: Update your smartphone and device firmware (e.g. headphones). Turn off the Permanent Device Search feature in Bluetooth settings. If you use Bluetooth 4.2 or lower, consider buying a device with 5.0+ — It will use less charge.

If the problem is not solved, try resetting the network settings on your smartphone (Settings → System → Reset → Network Reset) This will remove all stored Bluetooth devices, but often helps with system failures.

FAQ: Answers to Frequent Questions