Connecting Mi Band 4 to a smartphone after reset

After performing a full reset, your Xiaomi Mi Band 4 returns to factory status, erasing all accumulated activity data and personal settings. At this point, the tracker goes into a waiting mode for a new pairing, becoming visible for Bluetooth scanning, but not having a binding to any account, which is a stage that often causes difficulties for users, since the standard initial setup process can differ from reconnecting.

Reestablishing communication between your gadget and your mobile device requires not just Bluetooth, but the right sequence of actions in the Mi Fit (or Zepp Life) app. If you skip an important step or try to connect devices through Android or iOS system settings, you may encounter an authorization error or endless search for the device. It is important to understand that synchronization is controlled solely by the software, not the phone's operating system.

In this guide, we will take a detailed look at each step of connection recovery, paying special attention to nuances that are often ignored.You will learn how to properly prepare your smartphone, clear the cache of Bluetooth services, and avoid common errors that lead to the inability to complete the setup.The right approach ensures that your tracker will start collecting pulse, sleep and step data again without crashing.

Preparing a smartphone and cleaning old connections

Before you start the pairing process again, you need to make sure that the smartphone system has no "tails" from the previous session. Often the operating system tries to automatically reconnect to the device using old encryption keys that after reset become invalid, which leads to the fact that the phone sees the tracker, but the connection instantly breaks or hangs in the "Connected" status without transferring data.

First, open the Bluetooth settings on your phone and find the Mi Band 4 entry in the list of previously connected devices. Click on the gear or information icon next to the name and select the option "Forget the device" or "Cancel pairing." If you do not, the Mi Fit application may not see the tracker, as the system will block a repeated connection request.

⚠️ Warning: Make sure the bracelet is displayed after resetting QR-Mi code or logo, which means you're ready to pair. If the screen is out, press the touch button to wake the device up.

Next, it is recommended to completely close the Mi Fit app if it runs in the background. On Android, this is done by swiping down and choosing "Close All" or by forcibly stopping in the application settings. It is also useful to reboot the smartphone itself - this will clear temporary Bluetooth stack files and eliminate possible software conflicts that interfere with the stable operation of the wireless module.

Check if geolocation (GPS) is enabled on your phone. In modern versions of Android and iOS, scanning Bluetooth devices (especially low-energy ones like fitness trackers) is impossible without active location permission. Without GPS enabled, the app simply won't be able to detect the Mi Band 4, even if it's in the immediate vicinity.

The process of pairing through the Mi Fit application

The main tool for managing your tracker is the Mi Fit app (renamed Zepp Life in some regions), which is used to finalize profiles, synchronize time and set notifications. The connection process after reset is technically identical to the initial setup, but requires care when entering confirmation codes.

Launch the app and log in to your account. If you've previously used the same account, your historical data will be stored in the cloud and available after sync. Go to the Profile tab in the lower right corner of the screen and select Add Device. From the list of available gadgets, find and click on Mi Band 4.

The app will start looking for devices within range, as soon as the image of your bracelet and its bracelet appears on the phone screen. MAC-Address, press "Plug in." On the tracker screen, you'll see a vibration signal and a request for confirmation of pairing (Bluetooth icon). Touch the sensor on the bracelet to confirm the action. If the codes on the phone and bracelet match, the connection will be established.

In some cases, the system may request permission confirmation. Allow the app to access notifications, contacts, and background work. Without these permissions, the tracker's functionality will be limited: you will not be able to receive calls or messages, and the step counting may be interrupted when you lock the phone screen.

⚠️ Warning: Don’t try to connect Mi Band 4 directly through the Bluetooth settings in the phone’s menu.This will result in a “failed to hide” error or create a useless connection that doesn’t transfer data to the app.

Once the connection is successful, it will automatically synchronize time and date, which is critical because the Mi Band 4 doesn't have its own GPS or cellular module and relies on the phone to correctly display the time. If the time is lost, check the time zone settings in the app.

Configure access rights and permissions

For a stable work of the fitness tracker in the background, you need to correctly configure the resolutions in the smartphone operating system. Android’s aggressive energy saving algorithms can “kill” the process of the Mi Fit application, which will lead to a disconnection of the connection and loss of pulse or sleep data.

Go to the phone settings, Apps, find Mi Fit, and go to Permissions. Make sure all the necessary items are activated: location, phone, contacts, SMS, storage. Pay special attention to Autostart permission and work in the background if your phone (such as Xiaomi, Huawei or Samsung) has such restrictions.

The table below shows the main permissions and their impact on the tracker:

It’s also important to set up notifications for the apps you want, so inside Mi Fit, go to your device profile, select “App Notifications,” and activate the switches for WhatsApp, Telegram, Viber, and phone book, which will allow you to display text messages directly to the Mi Band 4 screen.

If you’re using iOS, make sure that the Bluetooth settings for your connected device include the option “Share system clock” which improves time synchronization and reduces power consumption. It’s critical for Android users to turn off the “Traffic Saving” option for the Mi Fit app so that sync can occur even over the mobile network.

Solving Device Detection Problems

The situation when the application does not see the tracker is one of the most common. This can be caused not only by software failures, but also by the peculiarities of the Bluetooth modules. If you have performed a reset, but the Mi Band 4 does not appear in the list of available devices, try to approach the phone closer to the exclusion of walls and metal objects.

Sometimes cleaning the cache of Google Play Services (on Android) helps. Go to the app settings, find Google Play Services, select Storage, and click Clear Cache. This action is safe for your data, but can restart the Bluetooth stack and make hidden devices visible.

Another reason could be low battery power. Although the tracker turns on, when the charge level is low, it can go into power saving mode, limiting the power of the Bluetooth signal, and set the bracelet to charge for at least 10-15 minutes before trying to reconnect.

Check if the bracelet is connected to another phone.The Mi Band 4 can keep a connection to the latest device.If you have access to the previous phone, remove the bracelet from its Mi Fit app. Only then will it become visible to the new smartphone.

Customization of dials and personalization

After successfully connecting and synchronizing time, the user is usually faced with the desire to change the appearance of the screen. Changing the dial is possible only after the initial data synchronization is completed, as new topics are downloaded from the cloud or transmitted from the phone. A standard dial can seem boring, so you should immediately adjust the interface to suit yourself.

In the Mi Fit app, go to the device profile and select "Dials." There is a shop where you can choose static or animated images. Third-party dials (not from the official store) will require special bootloader apps, but it is recommended to use standard functionality to start.

Remember to set activity goals. After resetting, the step counter is zeroed, and this is a great time to set realistic goals for the day. Go to profile, select Step Target, and set a value that will motivate, but not demotivate. Also set pulse notifications: set upper and lower thresholds, above which the bracelet will vibrate.

An important aspect is to adjust the wrist lift to turn on the screen. In the profile of the device, find the appropriate item and make sure that it is active. You can also adjust the time interval of this feature so that the screen does not light up at night during sleep, interfering with rest.

⚠️ Attention: Animated dials are very battery-consuming. If you want autonomy, choose static images or simple digital formats.

Update of firmware and final calibration

The final step in post-reset setup should be a software update. Manufacturers regularly release patches that fix heart rate sensor errors and improve Bluetooth connectivity stability. Ignoring updates can cause some features to malfunction.

Check for updates is in the device profile. If a new version is available, the app will prompt you to install it. During the process, do not disconnect the bracelet from your phone and keep the smartphone screen on. Interrupting the firmware download can cause the device to break (the “brick”), after which it will be extremely difficult to restore it.

After the update, it is recommended to calibrate the pedometer, walk a known distance (for example, 100 meters) and compare the data on the bracelet, in the settings you can enter the length of your step manually to more accurately calculate the distance traveled, which is especially important for people with unusual height or gait.

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Regularly (once a month) wipe the pulse sensor on the back with a soft cloth. Fat and sweat can distort readings, creating a false impression of the device's poor performance after reset.

Now your Mi Band 4 is fully ready to go, it will automatically sync data when you open the app, track sleep and activity, and wear regular wear and use correctly will ensure long battery life and accuracy of measurements.

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Successful connectivity after reset depends on the phone’s clean Bluetooth history and the correct permissions for the Mi Fit app.

Frequently Asked Questions (FAQ)