Owners of fitness bracelets and smartwatches often face an annoying problem: the tracker stops transmitting data, and call notifications stop coming to the smartphone screen. This is due to an aggressive policy of saving battery life in the MIUI shell, which forcibly closes the background processes. For Mi Fit (or Zepp Life) to work correctly, you need to perform a number of system settings.
The optimization process takes no more than five minutes, but it is critical to the stable pairing of devices. We will take all the necessary steps, from setting up auto-start to fixing the application in memory, which will allow your gadget from Xiaomi or Huami to work without disconnecting the connection.
Before you start manipulating, make sure you have the latest version of the app installed, older versions may not show up correctly in the list of running processes, and check if Bluetooth is on on your smartphone, as without it, the setting does not make sense.
Android's MIUI-based system has multiple layers of protection for background applications. It's not enough to run a program just because you have to go through the battery settings, the permissions and the interface of the running applications. Each step is important and you can't rule it out.
Set up auto-start and permissions
The first step is to allow the app to start automatically when you turn on your phone. Without this step, the system will block the tracker immediately after you restart the device. Find the Apps section in the Settings menu, then select All Apps and find Mi Fit (or Zepp Life) in the list.
In the menu that opens, find AutoStart and activate the switch. This is a basic requirement for any utility that needs to work all the time. Next, go to Permissions, where you need to make sure that the application has access to geolocation, Bluetooth and memory.
Pay special attention to location access, even if you don't plan to use it. GPS-Tracking via phone, Bluetooth Low Energy requires this permission to scan nearby devices. Without geolocation, data synchronization can be unstable.
Also check if you have access to your phone and contacts, so that the bracelet will have the names of the callers and the notifications from the messengers, and if those points are turned off, you will only see the number or you will not receive an alert at all.
☑️ Checking basic settings
Turning off energy savings for tracker
The most common cause of communication breakdown is power saving mode. Xiaomi's default system limits the background activity of apps to extend the life of a smartphone. For a fitness tracker, this is disastrous, since it needs constant exchange of data packets.
Go back to the Mi Fit app information menu. Find Battery or Charge Savings. The default option is either Energy Saving or No Limits (Recommended) and you need to select No Limits mode.
This move prevents the system from "killing" the application process even if the phone's screen is out for a long time.In some versions of MIUI, this item may be called "Background Connection" - make sure it's turned on.
⚠️ Warning: Setting the “No Limits” mode will result in the application consuming more battery power from the smartphone, which is a necessary fee for the stable operation of the wearable device and receiving real-time notifications.
If you use Ultra Battery mode, the tracker can be suspended completely, regardless of the settings of the particular application. Only select programs work in this mode, and Mi Fit does not fall there by default.
Why does MIUI cleanse memory so aggressively?
Fixing the application in memory
Once the permissions are set, you need to lock the application into the list of tasks you have started, which is a visual anchor that tells the system that the process is important to the user and that it does not need to be closed when you clear the memory.
Open the menu of running apps (bottom-up retention swipe or menu button). Find a window with the Mi Fit logo. Press and hold your finger on the preview of the application or click on the lock/eye icon (depending on the MIUI version) until the message "Application is fixed" appears.
Now, even if you click the Clear button (cross or broomstick), that particular process will remain hanging in RAM, ensuring that the sync service is not stopped manually or automatically.
It is worth noting that after updating the system or the application itself, the fix may fly. Periodically check the list of tasks running, especially if you notice a missing step data for the past period.
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Assigning tasks to the task menu is a visual guarantee for the system that the process cannot be completed with automatic memory cleanup (RAM).
Set up notifications and access to data
To fully work a smart bracelet, you need not only to keep the connection, but also to properly configure the notifications. Go to the Mi Fit application itself, go to the device profile and select Settings (or Application Notifications).
Here you'll see a list of all the apps installed on your phone. Turn on the switches in front of the ones you want to see on your wrist: WhatsApp, Telegram, Viber, calls and SMS. Don't turn everything on so you don't drain the tracker's battery with vibration.
It is also important to check the display settings on the locked screen of the smartphone, if the phone does not show notifications on the locked screen, they will not come to the bracelet either. Check this in the Notifications section in the general Android settings.
Sometimes, you need additional permission to "Master Over Other Windows" so that the app can show pop-ups or control the lock screen when you call in, and that permission is requested when you first start, but it's worth checking.
Table of frequent problems and solutions
Even after all the settings, specific crashes can occur, and here is a table that will help quickly diagnose the problem if the connection is lost or the data is not synchronized.
| Problem. | Possible cause | Decision |
|---|---|---|
| Step track not updated | App 'dormant' in background | Check the battery mode (“No restrictions”) and fix it in memory |
| No vibration when ringing. | Phone access permission is disabled | Give permission in the application settings and in the Mi Fit itself |
| The bracelet is constantly off. | Bluetooth conflict or energy saving | Reconnect the device and check autostart |
| No messages are coming from WhatsApp | Notifications for chat are disabled in the system | Enable notifications in Android and in Mi Fit settings |
Use this table as a checklist. If the problem isn't described, try the simple action of turning off and on Bluetooth on your smartphone, which in 80% of cases restarts the communication stack and solves the problem.
Additional Bluetooth settings and pairings
In rare cases, deeper Bluetooth tuning is required. Go to Settings → Bluetooth. Find your bracelet (such as Mi Band 4 or Amazfit) in the list of paired devices. Click on the gear next to the name.
Make sure that Calls and Share Contacts are enabled, and some versions of MIUI have a hidden Bluetooth developer menu that can be reached by clicking on the About phone build number several times, but it is rarely required by the average user.
If the phone loses the device immediately after leaving range, check whether Bluetooth flight or power saving mode is on, and make sure that too many other devices are not connected to the phone, which can cause addressing conflicts.
It's important to understand that the distance of a confident connection is limited. Walls and metal structures can shield the signal. If the breaks only occur in certain places, the problem may be radio interference, not phone settings.
Solving Notification Problems in New Versions of MIUI
The latest versions of the shell (MIUI 13, 14 and HyperOS) have additional restrictions, the system can request confirmation to display notifications on behalf of the application. If you see a pop-up “App wants to show notifications”, be sure to click “Allow”.
The newer versions also include the Advanced Memory feature, which uses a portion of the storage as RAM, which can slow down background processes. If you have a lot of RAM (8GB or more), try disabling the memory extension in the "Advanced" → "Memory Extension" settings.
Another nuance is Do Not Disturb or Sleep, and check the settings of these modes, and they may block the bracelet from vibrating at night, even if the phone is ringing, and this is set up in the profile of the device inside the Mi Fit app.
⚠️ Note: After a major Android update or MIUI All permission settings can be reset to factory. Always check Auto Start and Battery after you update your phone system.
Compliance with these rules will allow you to enjoy the functionality of a smart device without constant dancing with a diamond, and the stability of the work depends on the correct initial configuration.