Connecting Xiaomi Mi Band 4C to a smartphone: full instructions with solutions to problems

Why is the Mi Band 4C still relevant in 2026?

Fitness bracelet Xiaomi Mi Band 4C, released 2020 In the year, it remains one of the most popular gadgets for monitoring activity due to the optimal ratio of price and functionality. 7/8), 4C-The version continues to be in demand among those who are looking for a reliable tracker with basic functions: pedometer, pulsemeter, notifications and 14-It's day-to-day autonomous, and it's compatible with the latest Android versions. 13/14 iOS 16/17 Makes the device a universal choice.

However, many users have difficulty connecting the bracelet for the first time — especially when it comes to unofficial firmware or smartphones without Google Play Services. In this article, we will discuss not only the standard synchronization process, but also alternative methods for devices with limitations, as well as typical errors that prevent successful pairing.

Before you go to the instructions, make sure your Mi Band 4C is at least 20% charged - otherwise the bracelet may automatically turn off during setup. Also check if your smartphone supports Bluetooth 4.2 or newer (this is a requirement for stable operation of the gadget).

Step 1: Install the official Mi Fitness app (formerly Mi Fit)

To connect the Mi Band 4C, you need the Mi Fitness app, which replaced the outdated Mi Fit in 2022.

• 📱 Android: from Google Play (requires version 5.0)+) or APK APKPure for devices without Google services.
• 🍎 iOS: from the App Store (compatible with iPhone) 5s newer).
• 🌐 Alternative: Zepp Life (formerly Amazfit) - supports Mi Band 4C Restricted (no functions, such as music management).

⚠️ Note: If you have a Huawei smartphone without Google services, download Mi Fitness only through AppGallery. Third-party versions may contain viruses or not support synchronization with the Mi Band 4C.

After installation:

1. Open the app and sign up via Xiaomi Account, Google, Apple ID or phone number.
2. Select the region of Russia (or your country) – this is important for the correct operation of notifications.
3. Allow all requests for notifications, geolocation, and contacts (without this, the bracelet will not be able to show incoming calls).

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If you have a "Server Unavailable" error when registering for Mi Fitness, try connecting to the network via a VPN (such as Cloudflare's Warp) or restart the router. The problem is often with IP blocking in your region.

Step 2: Preparing the bracelet for pairing

Before connecting the Mi Band 4C to the phone, you need to reset it to the factory settings, if it has already been used before, this will eliminate conflicts with previous devices.

1. Press and hold the touch button on the bracelet for 10-15 seconds until vibrations appear.
2. The icon will be displayed on the screen. ⚙️ → ❌ (Confirm the choice by touching the screen.
3. Wait for the reboot (the bracelet will flash the Mi logo and vibrate three times).

If the bracelet is new, skip the reset and just turn it on by plugging it into a charge for 5-10 seconds. QR-Pair code or label is a signal of readiness to pair.

Charge the bracelet at least 20 times%|Reset the settings (if used previously)|Make sure that the screen is displayed QR-code"|Turn on Bluetooth on your smartphone-->

Step 3: Synchronize the bracelet with the smartphone

Now, to the most critical stage, which is the interface of devices, follow the instructions.

1. Open Mi Fitness and click Add Device (+ icon in the upper right corner).
2. Choose from the Mi Smart Band 4C list (not to be confused with Mi Band 4!).
3. Allow the application to use Bluetooth and geodata (without this connection will be interrupted).
4. Put the smartphone camera on QR-code on the bracelet screen or enter the 6-digit code manually (appears in the application).
5. Wait until synchronization is complete (it can take up to 2 minutes). The bracelet vibrates when connected successfully.

⚠️ Attention: If at the scanning stage QR-When you have a “failed to connect” error, try it:

• 🔄 Reboot Bluetooth on your smartphone (disable/enable in settings).
• 📱 Remove the bracelet from the list of conjugate devices in the Bluetooth settings of the phone.
• 🔋 Reboot the bracelet itself (hold the button for 10 seconds).

Step 4: Set up the core functions after connecting

Once synchronized successfully, the Mi Band 4C will need to be personalized to suit your needs.

Focus on Profile → Targets, where you can set your daily steps (8000 default), calories, and activity times, and for beginners, lower the bar to 5,000 to 6,000 steps so you don't have to demotivate yourself.

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After the first connection, update the bracelet firmware through Mi Fitness (Profile) → Update firmware.This will fix synchronization bugs and add new features (e.g. weather display).

Step 5: Solving common connection issues

Even with the right setup, Mi Band 4C users sometimes encounter errors, and let’s look at the most common ones and how to fix them:

1. The bracelet connects but does not synchronize data

Causes and solutions:

• 🔄 Cache Conflict: Clear the Mi Fitness cache (Settings) → Annexes → Mi Fitness → Memory. → Clear the cache).
• 📵 Weak Bluetooth signal: Bring your smartphone closer to the bracelet (maximum 10 meters without obstacles).
• 🔋 Low Bracelet Charge: Charge up to 50% and reboot.

2.The bracelet shuts off on its own.

This is most often related to:

• 🛑 Android Energy Saving: Add Mi Fitness to Exceptions (Settings) → Battery → Optimizing the battery → All applications → Mi Fitness → No restrictions).
• 📱 Conflict with other gadgets: Disable other Bluetooth devices (earphones, speakers).
• 🔄 Outdated firmware: Update the bracelet through the app.

3. no notifications are received on the bracelet.

Check it out.

• 🔔 Notification permissions: In phone settings (Settings) → Notifications → Mi Fitness) switch on all switches.
• 📵 Do Not Disturb Mode: Turn it off on the bracelet (Profile) → Don't disturb).
• 🔄 Contact sync: In Mi Fitness, update your contact list (Profile) → Contacts).

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If after updating the firmware bracelet stopped vibrating at notifications, reset it to factory settings and reconnect it. This resets the vibration settings to the default values.

Step 6: Alternative ways to connect (without Mi Fitness)

If the official Mi Fitness app doesn’t work on your device (for example, due to lack of Google services or blocking in the region), you can use the third-party program.

1. Notify & Fitness for Mi Band (Android)

Application with extended functions, including:

• 🔔 Customization of notifications (color, icons, vibration).
• 📊 Detailed statistics of sleep and activity.
• 🎵 Controlling music directly from the bracelet.

⚠️ Note: permission to access notifications is required and ADB-command to activate certain functions. XDA Developers.

2. Zepp Life (Android/iOS)

The official app from Huami (the Mi Band manufacturer), but with limited support for 4C. Suitable for:

• 🏃 Basic activity tracking.
• ❤️ Pulse monitoring.
• 🌙 Sleep analysis (without phase detailing).

Cons: There is no notification management and dial customization.

3. Mi Band Master (root devices only)

For advanced users with root rights, this application opens up additional opportunities:

• 🔧 Change fonts and animations on the bracelet screen.
• 📲 Creating your own notifications.
• 🔋 Optimization of energy consumption.

⚠️ Note: Mi Band Master can lead to loss of warranty and unstable bracelet performance.Recommended only for experienced users.

FAQ: Frequent questions about Xiaomi Mi Band 4C