Smart bracelets have long ceased to be just pedometers, becoming full-fledged health assistants. For owners of the fourth model from Xiaomi, the first priority is to properly configure communication with a smartphone, because without this gadget is just a stylish accessory. The pairing process may seem simple, but users often face non-obvious nuances that block the connection.
Modern Android and iOS operating systems periodically change the algorithms of working with Bluetooth devices, which requires constant updating of approaches to connection. In this article, we will discuss a detailed algorithm of actions that ensures successful synchronization of your Mi Band 4 with any mobile device.
Incorrect initial setup can cause notifications to arrive late or not displayed at all.To avoid disappointment from the purchase, it is important to follow all the steps correctly from the start, ensuring that the activity tracker is stable and sleep monitoring is accurate in the long run.
Preparing the device and smartphone for the first launch
Before you try to find the bracelet in the Bluetooth settings, you need to perform a series of preparatory steps. 4 level up 20-30%, Because the battery may not be stable enough to initially pair, make sure the bracelet displays on the screen. QR-Bluetooth code or icon, indicating readiness to connect.
On the smartphone, you should check the availability of free space and the relevance of the operating system. For stable operation of the Mi Fit application (or Zepp), you need Android 5.0 and higher or iOS 10.0 and higher (GPS), Modern versions of Android require this permission to scan BLE-device.
Remove any old Mi Band records from the list of paired devices, if any, you can do this in Bluetooth system settings by finding the device and selecting Forget or Disable. Having old profiles often causes addressing conflicts, causing the phone to see the device but not be able to complete the handshake.
- 📱 Turn on Bluetooth and GPS on a smartphone before the procedure.
- 🔋 Charge the bracelet at least 20% for a stable connection.
- 🗑️ Remove old bracelet entries from your phone’s Bluetooth device list.
- 🌐 Make sure you have a stable Internet connection to register your account.
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If you have previously used Xiaomi bracelets, log in to the application under the same Mi Account account - this will save the history of activity and not lose the accumulated data.
Installation and configuration of the Mi Fit (Zepp) application
The centerpiece of the ecosystem is the official app, which acts as a bridge between the hardware part of the bracelet and the software shell of the phone. download software should be exclusively from official stores: Google Play for Android or App Store for iOS. Third-party modifications may contain malicious code or work incorrectly.
Once installed, launch the app and log into your Mi Account, and if you don't have one, you'll need to quickly register with your phone number or email, and that account will store all your statistics, so remember the login details.
In the main menu of the app, you need to go to the device profile, usually a person icon or a profile tab in the lower right corner, and here is the Add Device button that starts the search mode, and the app automatically determines the model if the bracelet is in pairing mode.
⚠️ Warning: Don’t try to pair the bracelet directly through the phone’s Bluetooth system menu! The pairing must be done strictly inside the Mi Fit application interface, otherwise the data synchronization won’t work.
When the app detects Mi Band 4, the confirmation codes will appear on the smartphone screen and on the bracelet display. Make sure they match, and click Confirm on both devices.
Step-by-step process of bracelet pairing
The moment of connection takes only a few seconds, but it requires care. Once you click the search button in the application, the system will start scanning the ether, at which point do not move further than 1-2 meters from the phone to the signal was maximum.
If the search is successful, you'll see an image of the bracelet and its model. Clicking "Connect" initiates the transfer of encryption keys. At which point the bracelet can vibrate, confirming the action. Wait for the message "Successfully connected."
Once connected, the app will prompt you to set up notifications, which is an important step, because by default, all notifications can be turned off to save energy, and you can choose which apps (WhatsApp, Telegram, calls) to receive vibration signals from.
☑️ Checking successful pairing
Importantly, initial synchronization can take up to 5-10 minutes as the firmware update takes place.Don't interrupt the process and keep the phone screen on.
What if the codes don't match?
Configure permissions and notifications in the Android system
The Android operating system is known for its aggressive energy saving policy, which often kills application background processes. For Mi Fit to work correctly and transfer data in real time, it must be granted extended rights.
Go to Settings → Applications → Mi Fit (or Zepp) and find Autostart and activate it, and in Battery or Energy Saving, select No Limits or No Limits mode, which will prevent the system from stopping the application.
Pay special attention to permissions. The application needs access to contacts (to select callers' names), SMS (for notifications), microphone (for voice control, if supported), and of course geolocation. Without GPS enabled, device search may not be possible.
| Type of permit | Status | What do you need? |
|---|---|---|
| Geolocation | Always allowed. | Search BLE-device |
| Auto-start | Included. | Working in the background |
| Contacts | Permitted. | Names of callers |
| Notifications | Permitted. | Push notifications |
Xiaomi and Redmi smartphones with MIUI shell have an additional layer of protection. Go to the Security app → Permissions → Auto Start and make sure the slider opposite the Mi Fit is on green.
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Without setting up auto-start and removing battery restrictions, notifications to the bracelet will only come when the application is open.
Specificity of connection to iPhone (iOS)
iPhone owners are lucky to have a more stable Bluetooth stack, but there are some nuances here too: iOS requires explicit permission to use Bluetooth when you first launch an app, and if you accidentally refuse access, the app won't be able to find the bracelet.
The important thing is that the app works in the background. Unlike Android, iOS manages the background processes itself, but for reliability, it is recommended to go to Settings → Main → Content Update and make sure that the Mi Fit switch is active.
Also worth checking is the privacy settings. In Settings → Privacy → Movement and fitness should be enabled for the app, which will allow you to correctly count calories and steps taken, synchronizing them with Apple Health.
When you have connection problems on iOS, it often helps to reboot the smartphone itself, which resets the cache of Bluetooth services, which sometimes overflows or fails.
- 🍏 Check that Bluetooth is enabled in the Control Point».
- 🏃♂️ Allow access to “Movement and Fitness” in the privacy settings
- 🔄 Update the Mi Fit app to the latest version via the App Store.
- 📵 Turn it off. VPN-services at the time of pairing, they can block local search.
Do not forget that for all the functions of the bracelet, the application must be launched at least once a day to fully synchronize the data archive with the server.
Solving Typical Synchronization Problems
Even if all instructions are followed, there can be technical failures, and the most common problem is that the phone sees the bracelet, but the connection is cut off after a few seconds, often indicating that the device is already "tied" to another account.
Mi Band 4 can only be linked to one Mi Account at a time, and if you bought a used device or changed your phone, the previous owner must untie the bracelet in their app, without this step, synchronization is impossible.
Another common mistake is "Device not found" even though it's on, and in this case, a complete reset of the bracelet will help, and on the tracker itself, you need to find the System menu (or "Additional") and select Unbind/Reset, and then the bracelet will return to factory condition.
⚠️ Warning: Full reset will delete all accumulated data from the bracelet itself that has not yet been transmitted to the application.
If problems persist, try uninstalling the app, restarting the phone, clearing the Bluetooth cache (via the developer menu or special ulites), and installing the app again.