Xiaomi’s modern wearables have become an integral part of the smart home and healthy lifestyle ecosystem for millions of users. However, like any electronic device, a smart tracker requires the right initial activation and setup of the wireless connection to work properly. Many beginners, when they first purchase a popular fitness bracelet, are faced with a misunderstanding of how to start the pairing process, since the device itself often lacks physical buttons or classic menus.
It is important to immediately understand the key principle of these gadgets: activation of the Bluetooth module on the bracelet itself does not occur through its screen, but automatically at the time of first switching on or when connecting to a smartphone through a special application. The Mi Band series bracelets do not have a separate button “enable Bluetooth” in the user interface - the connection is activated forcibly when you start the synchronization process. That is why standard methods of finding devices through the phone settings without using proprietary software often fail.
In this guide, we will take a closer look at all the steps in activating a wireless interface, from unpacking to fine-tuning settings in the Mi Fitness or Zepp Life app. You will learn why a device may not appear on the list of available gadgets and how to avoid common errors that block stable transmission of pulse data, steps and notifications.
The principle of Bluetooth in Xiaomi trackers
Xiaomi Tracker Data Transfer Technology Based on Bluetooth Low Energy Protocol (BLE), It's designed specifically for low-power devices, unlike the classic Bluetooth that's used in headphones to transmit audio, BLE-The module in the bracelet is dormant most of the time, waking up only for a fraction of a second to transmit data packets or receive commands, allowing the device to operate on a single charge for two or more weeks.
The process of "on" here is software, and when you remove the tracker from the box or it discharges, its communication module goes into the ad-waiting mode, in which the gadget constantly broadcasts a special signal, informing surrounding devices of its presence, but only an authorized application that knows the unique device ID can see this signal.
⚠️ Note: Attempt to pair the bracelet exclusively through the standard Bluetooth menu in Android or iOS settings (without using the Mi app) Fitness/Zepp Life will cause an error. The system can show a message "failed to connect" or, worse, canned the device, after which the application will stop seeing it.
For stable operation, certain conditions must be met on the smartphone. The operating system must have current Bluetooth drivers, and geolocation access rights must be granted, since Android scanning is available. BLE-Devices are linked to location services.
Why does Bluetooth turn off by itself?
Preparation of the smartphone and installation of software
The first and most important step is to prepare the control device, which acts as the “master” that initiates the activation of Bluetooth on the wristband. First, make sure that your phone has one of the official managers: Mi Fitness (for new Mi Band models 6, 7, 8, 9 and Watch) or Zepp Life (for older versions of trackers).
Once you install the app, you have to give it all the permissions you want, and you have to pay special attention to location access and background work. Without those permissions, the operating system can block the scanning of the Bluetooth signal, and you can't turn on the connection. Modern versions of Android also require permission to search for devices nearby.
- 📱 Make sure that the version of the smartphone operating system meets the minimum requirements (usually Android 6.0).+ or iOS 12+).
- 📡 Check that the Bluetooth module on your phone is active and visible to other devices (at least in the settings).
- 🔋 Charge the bracelet before first activation, as at low voltage the communication module may not start.
If you have previously used a bracelet with another phone, be sure to remove it from the list of paired devices in the old gadget's Bluetooth settings.The "forgotten" device can create addressing conflicts, interfering with the new connection.
Step-by-step instructions for activating the connection
The process of enabling a Bluetooth connection is fully automated, but requires a strict sequence of actions. First, open the installed application and log in to your account. On the home screen, find the add a new device button, which is usually located in the upper corner or in the center of the interface.
After pressing the Add Device button, the app will start a deep scan, at which point you need to bring the bracelet as close as possible to the smartphone (at a distance of 10-20 cm). If the tracker is new, it may require confirmation of the start of the setting, which is carried out by touching the touch zone on the bracelet body.
☑️ Activation checklist
When your tracker is on your screen, click on it. The bracelet display should be prompted to confirm the pairing (phone icon or checkmark) and tap the bracelet screen for confirmation. From that point onwards, the Bluetooth module is considered activated and configured.
If the bracelet is displayed on the screen QR-The code, scan it with the app's camera or through a standard smartphone camera, which will redirect you to the desired section.
| Model bracelet | Recommended annex | Feature of connection |
|---|---|---|
| Mi Band 8 / 9 | Mi Fitness | Only through QR-search-code |
| Mi Band 7 | Mi Fitness / Zepp Life | Support for both applications |
| Mi Band 6 | Zepp Life / Mi Fitness | Requires software update at the first entrance |
| Mi Band 4 / 5 | Zepp Life | Better compatibility with the old version |
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Successful Bluetooth activation is confirmed by the vibration of the bracelet and the appearance of the “Connected” status on the home screen of the application.
Configure access rights and permissions
Even after successful pairing, users often face a situation where data is not synchronized or notifications do not arrive, due to the aggressive energy saving policies of modern smartphones, which can “kill” the background process of Bluetooth.
Go to your smartphone settings, search for the Apps section, and select your bracelet manager (Mi Fitness or Zepp Life). In the permissions menu, make sure Location, Bluetooth, and Notifications are activated. Without geolocation, a Bluetooth scanner on Android is technically impossible.
Pay special attention to setting “Run in the background” or “Autostart.” Allow the application to work in the background without restrictions, this ensures that the connection between the phone and the bracelet will not break when the screen of the smartphone is turned off.
- 🔒 Enable the “Look for devices nearby” permission (relevant for Android 12 and higher).
- ⚡ Turn off energy savings specifically for the tracker app.
- 🔔 Allow notifications to be displayed over other windows if you want to see calls on your wrist.
⚠️ Warning: If the bracelet stopped connecting after the phone's operating system update, check your privacy settings.Newer versions of Android and iOS often reset Bluetooth permissions for previously installed apps.
Diagnostics and Solving Connection Problems
It's quite common to see the bracelet not turning on or not being visible to the phone. First of all, try rebooting your smartphone. This trivial action clears the Bluetooth stack cache and eliminates temporary software glitches that block device search.
If the reboot didn’t work, reset the bracelet to factory settings. On the tracker itself, find the Settings → System → Reset menu (the path may vary depending on the firmware version). Once reset, the device will go back to the standby mode and it can be added again.
Also worth checking if the device is not "preserved" in the system. Go to the Bluetooth settings of the phone, find your Mi Band list (if there is one), and click "Forget the device" or "Cancel pairing." Only after that, repeat the search procedure in the application.
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If the Mi Band 6 or older bracelet has been lying idle for a long time, set it on charge for 30-40 minutes before trying to turn on.
In rare cases, the problem lies in the firmware version of the bracelet itself. If the app offers to update the tracker software immediately after you connect, agree. Older versions of the microcode may have compatibility bugs with newer versions of Android.
Optimizing Bluetooth for energy savings
The constant operation of Bluetooth connection consumes the charge not only of the smartphone, but also of the bracelet itself. Although BLE technology is very economical, there are settings that allow you to further extend the autonomy. In the Mi Fitness application, you can turn off the wrist lift to turn on the screen or reduce the brightness, which indirectly affects the frequency of the sensors survey.
Some people ask if you can turn off Bluetooth on your wristband completely, and there's no specific feature in the interface, because it would make it meaningless, but if you remove the wristband from the list of paired devices in the app or turn off Bluetooth on your phone, the tracker will go into isolation mode and stop transmitting data, storing it in internal memory.
For maximum clock-only (no synchronization) time, you can simply not open the app for weeks.The bracelet will continue to count steps and pulse, recording them in memory, but will not waste energy constantly searching for a phone to transfer data packets in real time.