What to do if the Xiaomi Mi Band 3 bracelet does not connect to the phone: the full guide

Problems with connecting Xiaomi Mi Band 3 to a smartphone are one of the most common complaints of users: the wristband can stop syncing suddenly after updating the firmware, changing the phone or even for no apparent reason, in most cases, the problem is solved without contacting the service center, but to do this, you need to accurately determine the source of the device.

In this article, we’ll look at all the possible reasons why the Mi Band 3 doesn’t connect to your phone, from the banal (battery dead) to the technical (firmware failure), how to diagnose a malfunction, what settings to check first, and what to do if standard methods don’t work, and focus on the hidden features of the Mi Fit app that many people don’t know about.

If you've tried to reboot your bracelet and phone before, but the result is zero, don't panic. 90% of the time, the problem is incorrect Bluetooth settings, application version conflict, or software failure of the tracker itself. We've compiled 7 proven ways to restore communication, including rare techniques that are not described in the official documentation of Xiaomi.

Before you start the repair, answer two key questions:

1. Does the bracelet react to touch (vibrates, turns on the screen)?
2. Does it appear on the Bluetooth device list but not connect?

The answers will help narrow down the possible causes and save time.

1. Checking the basic connection conditions

Start with the obvious: users often miss out on basic things while spending hours searching for complex solutions.

✅ Bracelet charge. Mi Band. 3 should at least have 10-15% If the battery indicator is not displayed on the screen, connect the bracelet to the charge on the 30 At a critically low charge (less than a minute). 5%) The bracelet may not include the Bluetooth module, even if the screen responds to pressing.

✅ Phone compatibility: Officially, Mi Band 3 supports Android 4.4+ iOS 9.0+, But in practice, there may be problems with devices on Android 12+ Due to application background limitations, check the OS version in your phone settings: → The phone. → Android version.

✅ Distance between devices. Maximum distance for stable connection is 10 meters (no barriers). If you try to sync the bracelet through a wall or in another room, the signal may be interrupted.

✅ No interference. Other Bluetooth devices (earphones, speakers, second bracelet) can create conflicts.

• 🔋 Charge the bracelet to 50% or more – this will eliminate problems with nutrition.
• 📱 Update your phone OS if updates are available (especially relevant for Android 11)+).
• 🔄 Restart both devices – sometimes it solves temporary crashes.
• 🚫 Remove other Bluetooth devices from the list of associated devices (at the time of setting up).

⚠️ Warning: If the bracelet does not respond to charging (the indicator does not burn, does not vibrate), the problem may be a faulty cable or connector. USB-power-port.

2. Bluetooth setup: hidden settings

Most often, Mi Band 3 doesn't connect because of incorrect Bluetooth settings on the phone, and even if the module is on, some system restrictions can block the connection.

🔹 Visibility mode. Go to Settings on Android → Connections → Bluetooth and make sure the phone is visible to other devices. On iOS, this option is turned on automatically when you search for new devices.

🔹 Energy saving: Battery optimization functions (e.g. Adaptive battery on Android 9)+) You can turn off Bluetooth in the background. Add the Mi Fit app to the exclusion list:

Settings → Battery → Battery Optimization → All applications → Mi Fit → Without restrictions

🔹 Bluetooth Cache.On Android, clearing the Bluetooth module cache often solves connection issues:

Settings → Applications → Show system → Bluetooth → Storage → Clear cache

⚠️ Note: On some firmware (for example, MIUI) This item may not be available, and resetting the network settings will help (see section 4).

🔹 If the bracelet had previously connected to another phone, its data could have been stored in memory. Remove it from the list of associated devices on all phones it has previously connected to.

3.Reinstall and configure the Mi Fit app

Mi Fit is the key intermediary between the wristband and the phone, and if it doesn't work properly, synchronization won't be possible.

📌 Step 1: Delete the current version. It's not enough to just update the app, you need to reinstall it completely. On Android, do it through Settings. → Annexes → Mi Fit → On iOS, hold the app icon and select Delete.

📌 Step 2: Download the latest version. Install Mi Fit from official sources only:

• 🤖 Google Play for Android)
• 🍎 App Store (for iOS)

Use of the APK From third-party sites can lead to certificate conflicts and connection blocking.

📌 Step 3: Setup the permission. Once installed, give the application all the permissions you need:

• 📍 Geolocation (for accurate tracking of activity)
• 📱 Bluetooth (to connect to the bracelet)
• 📁 Storage (for data storage)
• 🔔 Notifications (for synchronization of alerts)

📌 Step 4: Bracelet binding. Launch Mi Fit, log in to your Xiaomi account (or sign up) and select Add Device → Bracelet → Mi Smart Band 3. Follow the instructions on the screen.

Remove the old version of the application|

Clear the Bluetooth cache (if possible)|

Download Mi Fit from the official store|

Give all permissions to the app|

Restart the phone after installation-->

4. Resetting the bracelet to factory settings

If previous methods didn’t work, the problem is probably a software failure of the wristband itself, in which case hard reset will help, a procedure that will remove all data from the device, including settings and statistics, but is often the only way to get it back up.

🔧 Method 1: Through the bracelet menu (if the screen reacts):

1. On the bracelet, scroll down to the item Additional (icon) ⚙️).
2. Select Resetting (Icon) 🔄).
3. Confirm the action by clicking the tick.

🔧 Method 2: Hardware reset (if the bracelet does not respond to touch):

1. Connect the bracelet to the charger.
2. Press and hold the touch button under the screen for a period of time. 10-15 A few seconds before the Mi logo appears.
3. Release the button and the bracelet will reset and reset.

Once reset, the bracelet will look like a new one. You will need to re-tether it in the Mi Fit app (see Section 3).

⚠️ Note: If the bracelet is not turned on or determined by the application after reset, this may indicate a hardware malfunction (for example, damage to the Bluetooth module.

5. Update of bracelet firmware

The outdated firmware of Mi Band 3 It may cause compatibility problems with new versions. Android/iOS. Xiaomi regularly releases updates to fix connection errors.To update the bracelet:

🔄 Step 1: Check the current version. In the Mi Fit app, go to the bracelet profile and find the Firmware Update. If the update is available, you will see a notification.

🔄 Step 2: Prepare your bracelet:

🔄 Step 3: Run the update. Press Update and wait until the process is complete. Don't interrupt the connection or turn off the bracelet during the upgrade - this can cause a breakdown.

If the update is hanging:

1. Reboot your phone and bracelet.
2. Try again in 10 minutes.
3. If the error is repeated, reset the bracelet to factory settings (see section 4).

6.Challenges with Xiaomi account

Many users are unaware that the connection issues may be related to Xiaomi’s account, and if your account is blocked, unconfirmed, or linked to another region, the bracelet will not sync.

🔐 Account status. Make sure you're logged in to the same account on your phone and in the Mi Fit app:

Mi Fit → Profile → Xiaomi Account

🌍 Account region. Xiaomi divides servers by region. If your account is registered in China, for example, and you are in Russia, there may be synchronization errors:

📧 Confirmation email/If you don't have an account, Mi Fit may limit functionality. SMS A letter from Xiaomi with a link to confirm.

🔄 Reset the device, if the bracelet was previously linked to another account, you need to untie it:

1. Reset the bracelet to factory settings (Section 4).
2. Sign in to Mi Fit under the account to which the bracelet was previously linked.
3. Remove it from the device list.
4. Log in under your account and re-attach the bracelet.

💡

If you bought the bracelet with your hands, ask the previous owner to untie it from your Xiaomi account, otherwise you will not be able to fully enjoy all the features (for example, notifications or data sync).

7. Hardware malfunctions and service repairs

If none of these methods worked, the problem is likely hardware, and here are the signs that the bracelet is malfunctioning:

🚨 Bracelet not charging:

• Check the cable and power supply (try charging from another source).
• Check the contacts on the bracelet – they should be clean, without oxidation.
• If the charging indicator is not on, the power controller may be damaged.

🚨 Bluetooth module does not work:

• The bracelet does not appear in the list of available devices even after resetting.
• When connecting, the error "Can not hide the device" is given.

In this case, you need to replace the Bluetooth module, which is possible only in the service center.

🚨 Damage to the screen or sensor:

• The screen does not respond to touch or display artifacts.
• The bracelet is reloaded arbitrarily.

This can be caused by mechanical damage (impacts, moisture) or wear of the plume.

🔧 What do you do:

1. Please contact the official Xiaomi service center (list on mi.com).
2. If the bracelet is warranty, repair will be free (provided there is no mechanical damage).
3. The cost of replacing a Bluetooth module or screen in informal workshops is from 800 to 1500 rubles.

⚠️ Warning: Don't try to disassemble the bracelet yourself - this will void the warranty and may cause the device to fail completely.The Mi Band 3 uses adhesive joints and fragile plumes that are easily damaged.

💡

If the bracelet is physically functional (charged, turned on, reacted to touch) but does not connect to the phone, 95% of the time the problem is software, resetting, reinstalling Mi Fit and updating the firmware solve it in most situations.

FAQ: Frequent questions about connecting Mi Band 3