How to turn Bluetooth on Xiaomi Mi Band 3: detailed instructions with solutions to problems

Xiaomi Mi Band 3 is one of the most popular fitness bracelets, but even such a proven device sometimes has problems with Bluetooth connection. If your bracelet does not sync with your smartphone, does not show notifications or is not detected at all in the list of devices, the reason most often lies in the wrong connection settings. In this article, we will analyze not only the standard way to turn on Bluetooth, but also hidden nuances that the manufacturer does not always mention in the official documentation.

Contrast OLED-The screen, waterproof up to 50 meters and 20 days of battery life have made the Mi Band 3 a hit, but many users are faced with the fact that the bracelet suddenly “loses” communication with the phone. In 80% of cases, the problem is solved by simply resetting your settings or updating your firmware, but there are less obvious reasons, from conflicting versions of the Mi Fit app to hardware restrictions on some smartphones. Next, you will find step-by-step instructions for Android and iOS, as well as a compatibility table with different versions of operating systems.

Why Mi Band 3 doesn’t connect via Bluetooth: the main reasons

Before we get to the settings, it's important to understand why the bracelet might ignore connection requests.

• 📱 Mi Fit or Zepp Life below 4.6.0 often don’t support the Bluetooth 5.0 protocols used in new smartphones.
• 🔄 Conflict with other devices: If the bracelet was previously paired with another phone, it can "hang" in standby mode of connection.
• 🔋 Low battery power: At a charge level below 15%, the Mi Band 3 automatically shuts down power-intensive functions, including Bluetooth.
• 🛠️ Software failures: Errors in the bracelet firmware (especially in versions below 1.0.9.14) can block the communication module.
• 📶 Interference from other devices: Wi-Fi routers at 2.4 GHz, wireless headphones or smart watches within a radius of 3 meters create interference.

Interesting fact: the Mi Band 3 uses a Nordic nRF52832 chip that supports Bluetooth 5.0, but because of the optimization of power consumption, the bracelet can "lose" the connection when you use GPS on your smartphone.

⚠️ Note: If the bracelet was previously connected to a smartphone on Android 8.0 or lower, after upgrading the phone to a new version of the OS, a full reset of the Mi Band 3 may be required.+.

The standard way to turn Bluetooth on on the Mi Band 3

Unlike smartphones, the Mi Band 3 doesn’t have a separate Bluetooth switch — the module activates automatically when you first connect to the app.

1. Install the latest version of Mi Fit (for Android) or Zepp Life (for iOS) from the official app store. Do not use APKs from third-party sources - they may contain modified Bluetooth libraries that are incompatible with the bracelet.
2. Sign up or sign in to your Xiaomi account. Without an account link, data synchronization won’t work.
3. Click "Add device" and select "Breasure" → "Mi Smart Band 3".
4. Unlock the bracelet screen (touch the sensor) and hold it less than 10 cm to the phone. Wait for vibrations - this is the signal to start the search.
5. Confirm the pairing on the phone and bracelet (on the screen Mi Band 3 will appear a tick).

If everything goes well, the app will display the current battery charge of the bracelet, and the menu "Device Profile" will appear "Update firmware" (if a new version is available). Bluetooth on the Mi Band 3 is turned on only at the time of active synchronization and turns off after 3 minutes of inactivity to save energy.

The bracelet vibrated when paired|The application displays the battery charge|On the screen of Mi Band 3 there was a tick|Phone shows "Connected" in Bluetooth settings-->

Alternative ways to activate Bluetooth

If the standard method didn't work, try these options, which are especially useful if the bracelet has been connected to another device before or after resetting.

Method 1: Forced Bluetooth launch via reset

This method will work even if the bracelet does not respond to touch:

1. Charge the Mi Band 3 to at least 50%.
2. Disconnect it from the charger and place it in flight mode (hold the sensor for 5 seconds until the aircraft icon appears).
3. Connect the bracelet to charge again and hold the sensor for 10 seconds until you feel a triple vibration – this is a reset signal.
4. After restarting, repeat the connection procedure through the application.

Method 2: Manually add the device in the phone settings

Sometimes Mi Fit can't detect the bracelet because of OS limitations.

1. Open Bluetooth settings on your phone.
2. Click "Add New Device" → "Regular Device".
3. In the list, find a device with a name MI Band 3_XXXX (where XXXX — unique identifier).
4. Confirm the pairing by entering the code 0000 or 1234 (if requested).
5. Return to Mi Fit and update the list of devices.

⚠️ Note: On smartphones Huawei and Honor with EMUI 10+ You may need to turn off the Bluetooth Power Saving feature in the battery settings, otherwise the connection will break every time. 5-10 minute.

Xiaomi|Samsung|iPhone|Huawei/Honor|Other-->

Compatibility table Mi Band 3 with different OS

Not all smartphones work equally well with the Mi Band 3. Below is a compatibility table with Bluetooth protocols:

If your OS isn’t listed in the table or the version is below the minimum, upgrading your phone can fix the problem. For example, on Android 4.4, the Mi Band 3 only connects through third-party apps like Notify & Fitness, but without a stable performance guarantee.

Common mistakes and their solutions

Even after a successful connection, users face typical problems, and here's how to fix them:

• 🔌 "Bracelet not detectable": Reboot phone and bracelet. Turn off Bluetooth on phone for 30 seconds, then turn it on again. Remove the bracelet from the list of conjugated devices in phone settings and reconnect.
• 📵 "Communication is constantly breaking": Turn off power saving mode for the Mi Fit app in battery settings. VPN or firewalls blocking background activity. Update the bracelet firmware through the app (Device Profile menu" → "Firmware update").
• ⚡ "Bracelet discharges quickly": Turn off unnecessary notifications in the Mi Fit settings. Check if the "Constant pulse" mode is on (it consumes up to 30% of charge per day). Reset the bracelet to factory settings (hold the sensor 10 seconds before vibration).

Update firmware for stable Bluetooth operation

Xiaomi regularly releases updates for Mi Band 3, which correct communication errors, to update the firmware:

1. Open Mi Fit and go to Profile" → "Mi Smart Band 3".
2. Slip on the three dots in the top right corner and select "Firmware Update".
3. If the update is available, plug the bracelet into charging and wait for the process to complete (don’t turn it off!).

The latest firmware versions (starting with 1.0.9.14) fixed critical bugs with a communication break on Android 11+ and added Bluetooth 5.0 support for iPhone 12 and later.If your app does not have an update button, check:

• 🌐 Xiaomi account region. Some updates are coming to China region first (change region in your account settings to China").
• 📥 On Android, turn off the Traffic Saving option for Mi Fit.
• ⏳ Sync time: Updates can only be loaded in the background when connected to Wi-Fi.

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If the firmware update is 0% down, don't turn off the bracelet from charging! Wait 10 minutes - sometimes the process resumes after a pause. If after this time nothing has changed, reset the bracelet (hold the sensor for 10 seconds).

What do you do if nothing helps?

If you’ve tried all the ways but Mi Band 3 still doesn’t connect, the reasons could be hardware:

• 🔋 Battery malfunction: If the bracelet discharges in a few hours, the Bluetooth module may shut down due to insufficient voltage).
• 📡 Bluetooth antenna damage often occurs after falls or contact with water (despite claimed water resistance).
• 🛠️ If the bracelet was left unused for a long time, the charging contacts could oxidize, leading to unstable operation.

Official Xiaomi service centers replace the Bluetooth module in the Mi Band 3 for 1,200-1,500 rubles (2026), the alternative is to buy a new bracelet, since the cost of repair is often comparable to the price of the device.

⚠️ Warning: Do not use alcohol or acetone to clean your contacts, they destroy the protective coating%+ or a special liquid for cleaning electronics.

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Before contacting the service, check the bracelet on another phone, this will help to eliminate software problems. If the second Bluetooth device works, the reason is the settings of your smartphone, not the bracelet.

FAQ: Frequent questions about Bluetooth in Mi Band 3