You’re trying to connect new wireless headphones, a fitness bracelet or a gaming controller 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 speakers may not connect to the new Redmi Note 12 with Bluetooth 5.3 at all.
In this article, you’ll find 5 proven ways to find out the Bluetooth version on any Xiaomi phone, from budget Redmi to flagship Xiaomi 14. We’ll break down the official methods through settings, hidden engineering menus, third-party apps and even technical specifications analysis. And at the end, you’ll find a table of compatibility of Bluetooth versions with popular accessories.
1. Check through phone settings (official method)
The easiest method is to look at the Bluetooth version in standard MIUI settings, but here's a caveat: newer firmware versions (starting with MIUI 13) often hide this information. Try the following algorithm:
- Open the Settings. → The phone.
- Tap the MIUI version several times until the message “You’ve become a developer!” appears.
- Return to the main settings menu and select Additional → For developers.
- Scroll down to the Network block – there may be a Bluetooth version bar displayed.
⚠️ Note: On some models (e.g, POCO X5 Pro or Redmi 10C) The Bluetooth version doesn't appear on this menu. If you have one, move on to the next one.
Turn Bluetooth on in the notification curtain
The battery should be >20 percent charged.
Connect to Wi-Fi to download applications (if required)
Remember your Xiaomi model (written on the box or in Settings) → The phone)-->
2.Use of the engineering menu (hidden method)
If the standard settings didn’t show the Bluetooth version, you can check the engineering menu (also known as the MTK Engineering Mode or Qualcomm Service Menu) that works on most Xiaomi, but you need to be careful not to change the other options on the menu!
Instructions for Qualcomm processors (most modern Xiaomi):
- Open the phone app and enter the combination: ##4636##
- In the menu that appears, select Phone Information.
- Scroll down to the Bluetooth block – there will be a Bluetooth version string.
For Mediatek processors (old Redmi models):
- Enter the phone app: ##36446337##
- Go to the Connectivity section → Bluetooth.
- Look for the BT Chip and BT Version.
What to do if the engineering menu is not opened?
3. Third-party applications for iron analysis
If previous methods didn’t work, specialized utilities will come to the rescue, not only showing the Bluetooth version, but also providing full information about the hardware of your Xiaomi. We tested 3 apps – all free and unadvertised (at the time of writing).
- 📱 AIDA64 — The most accurate application. After installation, go to the System section. → Bluetooth. This will show the version of the protocol, the code supported (e.g., aptX, LDAC) even MAC-address.
- 🔍 CPU-Z — Lightweight alternative: The Bluetooth version is displayed in the SoC tab (System on Chip, A2DP sound-transmitter).
- 🛠️ DevCheck is a user-friendly interface with data visualization. The Bluetooth version is listed in the Hardware block next to the information about the processor and RAM.
⚠️ Note: Some applications (e.g. AnTuTu Benchmark) may show the wrong version of Bluetooth, because they read data from the firmware, not directly from the chip.
AIDA64
CPU-Z
DevCheck
AnTuTu Benchmark
Other/Not used-->
Checking by phone model (database)
If you can’t identify the Bluetooth version software, you can use the official specifications of your model, which is suitable for new devices, as information about older models (such as the Redmi 4X or Mi A1) can be removed from the Xiaomi website.
How to find the data:
- Find out the exact model of your phone in Settings → About Phone → Model (e.g. 2201116PG for Redmi Note 11 Pro+ 5G).
- Go to the official Mi.com or Specs.Xiaomi.com website.
- Type the model into the search bar and open the page with the characteristics.
- In the Wireless Networks or Connectivity block, the Bluetooth version will be specified.
| Xiaomi model | Bluetooth version | Supported profiles |
|---|---|---|
| Xiaomi 14 Ultra | 5.4 | LE Audio, LC3, aptX Adaptive |
| Redmi Note 12 Pro+ | 5.3 | A2DP, AVRCP, HFP |
| POCO F5 Pro | 5.3 | LE Audio, LDAC, aptX HD |
| Redmi 10A | 5.0 | A2DP, HFP, PBAP |
| Mi 11 Lite | 5.2 | LE Audio, LC3, SBC |
Important: Starting in 2023, Xiaomi stopped specifying the Bluetooth version in the specs of budget models (for example, Redmi A2+ or POCO C51).
5. Accessories compatibility analysis
You don't know the Bluetooth version, you need to know what features will be available with your accessories. For example, Sony WH-1000XM5 headphones support LDAC and LE Audio, but they need a smartphone with Bluetooth 5.2+ to work properly. Below is the table of compatibility of popular devices with Bluetooth versions.
| Accessory | Minimum version of Bluetooth | What happens if the version is lower? |
|---|---|---|
| AirPods Pro 2 headphones | 5.0 | Spatial sound and automatic switching between devices will not work |
| DualSense (PS5) Gaming Controller | 5.1 | Delay in input ~80 ms (versus 40 ms on 5.1+) |
| Fitness bracelet Mi Band 8 | 4.2 | There will be no notifications about calls on some firmware |
| Column JBL Charge 5 | 4.2 | You can’t connect 2 columns at the same time (PartyBoost function) |
| Wireless keyboard Logitech MX Keys | 5.0 | Delayed pressing ~120 ms (versus 60 ms by 5.0+) |
💡 Useful tip: If your Xiaomi supports Bluetooth 5.0+, But the headphones sound worse than the old phone, check the codec settings. MIUI default is often SBC (Low quality: To enable aptX or LDAC:
- Put the headphones on.
- Open Settings → Bluetooth.
- Put the badge on. ⚙️ near the connected device.
- Select Audio Codec or Audio Quality and set the maximum value.
💡
Bluetooth 5.0 and later supports Dual Audio — the ability to connect 2 pairs of headphones at the same time. To activate: open Settings → Bluetooth → Additional → Dual Audio (not available on all models).
6. Frequent mistakes and how to avoid them
When checking the Bluetooth version, users often encounter typical problems, and here are the most common ones and how to solve them:
- 🔄 The Bluetooth version in the settings doesn't update after firmware. That's OK - the protocol version depends on the hardware (Bluetooth chip) rather than the software. MIUI It can also support new profiles (for example, LE Audio, but will not change the base version (e.g. 5.0 to 5.2).
- 📱 Apps show different versions of Bluetooth. Check if you have "optimizers" or "cleaners" (like Clean Master) installed that can block access to system information. Also make sure that applications have rights to access Settings and Device Information.
- 🔌 Bluetooth does not turn on after checking the engineering menu. This can happen if you accidentally change the settings in the section RF Test. Solution: Reboot your phone or reset your network settings (Settings) → SIM-maps and mobile networks → Resetting network settings).
⚠️ Note: Some Xiaomi models (e.g. Mi) 10T or POCO X3 NFC) post-update MIUI 14 may lose support for some Bluetooth profiles (for example, HFP If after the upgrade, calls through headphones stopped working, try to roll back to the previous version of the firmware or install custom software (for example, Xiaomi.EU).