Connecting Mi Smart Band 4C to Xiaomi Redmi: Full instruction with error solutions

Xiaomi’s Mi Smart Band 4C fitness bracelet is a budget-friendly but functional device for tracking activity, sleeping and receiving notifications. However, many users face difficulties when connecting the bracelet to a smartphone for the first time, especially if both devices are from the same manufacturer. In this article, we will discuss not only the standard pairing procedure through the Mi Fit app, but also the nuances of working with Xiaomi Redmi phones, where conflicts can arise due to duplicate Mi Account services or MIUI limitations.

It's important to understand that the Mi Band 4C is a simplified version of the lineup, devoid of NFC and color screen, but with basic functionality saved. Connecting to Redmi (regardless of model — be it Redmi Note 10 Pro or Redmi 9A) goes through the official app, but there are a number of things to consider in advance, such as some versions of MIUI blocking background Mi Fit activity, which leads to missing notifications or disconnection. We'll show you how to avoid this.

1. Connection Preparation: What to Check Before Pairing

Before you start setting up, make sure your Xiaomi Redmi and Mi Band 4C are ready to work with each other, often because of trivial things like a dead bracelet, outdated phone firmware or conflicting accounts.

Here are the key points to pay attention to:

• 🔋 Bracelet Charge: Make sure that the Mi Band 4C At least 20 percent charged. At low charge, the device may shut down during pairing. Connect the bracelet to charge for 10 to 15 minutes if the indicator flashes red.
• 📱 Version. MIUI: On Redmi phones with MIUI 12 and above may cause conflicts with Mi Fit permissions. Update to the latest stable version in Settings → The phone. → Updating the system.
• 🌍 Account Region: If your Mi Account is registered in China and your phone is used in Russia or Europe, some of the bracelet features may be blocked.
• 📵 Bluetooth and geolocation: Turn on Bluetooth and allow the Mi Fit app to access geodata (even if it seems odd – without it, the bracelet won’t track steps correctly).

Pay special attention to application permissions. In the latest versions of MIUI, the system aggressively restricts the background activity of programs, which can interrupt communication with the bracelet. To avoid this, go to Settings → Applications → Application Management → Mi Fit → Permissions and turn on:

• 📍 Access to geodata (always not only when used)
• 🔄 Auto-start
• 📱 Display over other windows
• 🔋 Battery Optimization (Switch Off for Mi Fit)

⚠️ Note: If you have previously used a different model bracelet (such as Mi Band 5 or Mi Band 6), remove it from the Mi Fit app before connecting. 4C. Otherwise, a conflict of devices may occur.

2. Installation and configuration of the Mi Fit application

The official Mi Fit app is the only legal way to connect the Mi Smart Band 4C to the Xiaomi Redmi. Alternative programs (like Notify & Fitness or Mi Band Master) may not work stable or support this model at all. Download Mi Fit from Google Play or the App Store (for iPhone, if you suddenly use Redmi with iOS).

After installation, follow the following steps:

If you already have a Mi Account on your phone, the system will automatically prompt you to log in. Don't create a new account, it will lead to a data conflict. If you forget your password, restore it through Settings → Accounts → Mi Account on your phone.

After logging into the account, the application may request access to:

• 📱 Notifications (for display) SMS and bracelet ringing)
• 🏃 Physical activity data (for sync with Google Fit)
• 📁 Storage (for backup of settings)

Allow all requests, otherwise some of the bracelet's features will not be available, for example, without access to notifications, you will not be able to see incoming calls on the Mi Band 4C screen.

3. Step-by-step connection of Mi Band 4C to Xiaomi Redmi

Now, to the pairing itself, make sure the bracelet is on (click on the touch button to wake the screen) and is next to the phone (no more than 1 meter away).

Open Mi Fit and follow the instructions:

1. On the main screen of the application, tap the icon “+” (or “Add device”).
2. Select from the Mi Smart Band 4C list (if the model is not listed, update the app).

If at the interface stage there is an error “I could not connect”, try the following actions:

• 📱 Remove the bracelet from the list of conjugate devices in the Bluetooth settings of the phone.

Once successfully connected, the app will suggest updating the bracelet firmware, agree only if the phone is connected to charging and has a stable Internet connection via Wi-Fi. Interrupting the update can make the bracelet fail.

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If the bracelet doesn't vibrate when paired, check if the phone is running Do Not Disturb or power saving, which can block notifications from Mi Fit.

4. Set up notifications and basic functions

By default, the Mi Band 4C only shows the time and steps. To use all the features, you need to configure notifications and tracking options. Open the section of your bracelet in Mi Fit and go to the Device Profile → Notifications.

Switch on for:

• 📞 Incoming calls (the bracelet will vibrate and show the number)
• 💬 SMS and messengers (WhatsApp, Telegram, etc.)
• 🔔 Other notifications (calendar, postal, etc.)
• 🚨 Alarm clocks (set vibration to wake up)

Note the Inactivity Reminders section, where you can turn on alerts if you sit still for a long time (good for office work), and we recommend that you activate the "Raising your hand for lighting" section, so that the bracelet screen will turn on when you move your hand.

For accurate sleep and pulse tracking:

1. Go to Device Profile → Heart Rate Monitoring.
2. Turn on Continuous Monitoring (but note that this reduces the bracelet’s time).
3. In the “Sleep” section, activate “Auto-tracking” and specify the approximate time of going to bed.

⚠️ Note: On the phones Xiaomi Redmi with MIUI 13+ This can trigger battery optimization, which causes Mi Fit to stop syncing at night. To avoid this, add the app to the exceptions: Settings → Battery → Optimizing the battery → All applications → Mi Fit → Not optimize.

5. Solving common problems

Even after a successful connection, users of the Mi Band 4C and Xiaomi Redmi may encounter common errors.

If the bracelet has stopped responding to touch or does not turn on, try resetting it to factory settings:

1. Open Mi Fit and go to Device Profile → Untie the Device.
2. Confirm the uncoupling.
3. On the bracelet, press the touch button for 15 seconds until the Mi logo appears.
4. Reconnect the bracelet as described in Section 3.

6. Optimization of the bracelet with Xiaomi Redmi

To ensure that the Mi Smart Band 4C is stable and does not discharge in one day, follow these tips:

Saving charge:

• ⚡ Turn off continuous heart rate monitoring (just take your heart rate every 30 minutes).
• 🌙 Reduce the brightness of the bracelet screen to 2-3 divisions.
• 🔔 Disable unnecessary notifications (such as from games or social media).

Improved data accuracy:

• 🏃 Wear the bracelet 2-3 cm above the wrist (so the pulse sensor works more accurately).
• 📱 Manually sync data regularly (open Mi Fit and pull the screen down for updates).
• 🛌 To accurately track your sleep, wear a bracelet 30 minutes before going to bed.

If you are actively involved in sports, set up activity goals in Mi Fit:

1. Go to Profile → Goals.
2. Set realistic values for steps (e.g., 8,000 instead of the standard 10,000).
3. Activate tracking of specific sports (walking, running, cycling).

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For maximum pedometer accuracy, calibrate the bracelet: walk exactly 50 steps, then in Mi Fit, specify this value in the device settings, which will help the algorithm adapt to your gait.

7. Alternative ways of connecting (if Mi Fit does not work)

In rare cases, the official Mi Fit app may not recognize the Mi Band 4C or not work properly, so you can try alternative methods:

Method 1: Zepp Life (formerly Amazfit)

Zepp Life is an updated version of Mi Fit for Xiaomi and Amazfit devices, it supports Mi Band 4C and sometimes works more stable than the original app. Download it from the official store and follow the same pairing steps as in Mi Fit.

Method 2: Manual Bluetooth connection

If the bracelet is determined by the phone, but not connected via the app:

1. Find the Mi Smart Band 4C and tap it.
2. Start Mi Fit – the application should “see” the bracelet.

Method 3: Reset the phone to factory settings (extreme case)

If neither method worked and the bracelet is working (check on another phone), the problem may be in Redmi firmware. Before reset, back up the data via Settings → Additional → Backup and Reset.

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Before resetting your phone, try clearing the Mi Fit cache: Settings → Apps → Mi Fit → Storage → Clear the cache. This often solves connection issues.

FAQ: Frequent questions about Mi Band 4C Xiaomi Redmi