It is quite common for a fitness bracelet to stop syncing with your phone, which can happen after you update your smartphone operating system, reset the tracker itself, or change the main device, and users are faced with the gadget either not visible on the Bluetooth list, or the Mi Fit app (now Mi Fitness) gives a connection error.
Re-binding requires a clear algorithm of actions, because simply turning on Bluetooth does not always solve the problem. Often requires a complete reset of data or removing the old device from the cache of the system. It is important to understand that the Xiaomi Mi Band 4 is a reliable device, but its work is tied to the software shell.
In this article, we'll look at all the steps of connection recovery, and learn how to properly break the connection between devices and reset it without losing any statistics, and follow the instructions to avoid common mistakes.
Preparatory stage and diagnosis of problems
Before you start taking action, you need to make sure that the Bluetooth module of the smartphone is working correctly. Often the problem lies in a software failure of the Android or iOS operating system, which blocks the search for new devices. Rebooting the phone is the first action worth doing.
Check the battery power of the tracker. If the battery is completely dead, the device may not respond to connection attempts. Make sure the bracelet is charged and the screen displays a welcome message or QR-Also make sure that the smartphone has the necessary permissions to work with Bluetooth.
⚠️ Warning: Do not try to connect the bracelet through the standard Bluetooth menu in the phone settings as a headset.This will lead to pairing error.
Make sure you have an up-to-date version of the Mi Fit or Mi Fitness app installed. Older versions of the software may not work properly with newer versions of the tracker firmware. Updating the app often resolves hidden conflicts.
Complete reset and uncoupling of the old device
The most common reason you can't reconnect is because you have tails from the previous session, and the system remembers the old pairing and conflicts with trying to create a new one, so (first step) is to clean up the connection history completely.
Go to the Mi Fit app, go to profile and select your bracelet. At the bottom of the device settings page, click Unpair. This action will remove the binding at the software level.
☑️ Checklist full detachment
Now you need to clear the Bluetooth cache at the operating system level. Go to the phone's settings, find the Bluetooth partition, find the Mi Band 4 list, and click "Forget the device" or the gear icon to delete. Only then you can proceed to the next step.
Instructions: How to reconnect the bracelet
The connection process starts with the Mi Fit application. Sign in to your account and click on the Profile tab. Select Add Device and find the Mi Band 4 activity tracker in the list. Don't turn on Bluetooth on your phone in advance if the app asks you to do so in the process.
When the app starts searching, put the bracelet next to your smartphone. The tracker screen may show a vibration or a request for confirmation of pairing (phone icon). Click on it if it appears. The app on the phone may also require confirmation.
Sequence of action:
1. Open Mi Fit -> Profile
2. Add the device -> Band
3.Select Mi Band 4
4. Confirm by pressing the braceletIt can take 10 to 30 seconds to sync, and don't take your phone too far, and if it's successful, you'll see a handshake animation and a notification of a successful connection, and the step counter data will start to update.
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If the bracelet doesn't vibrate when searching, try putting it on charge for 5-10 minutes. Sometimes low charge blocks the Bluetooth module.
Configure access rights and permissions
It is critical to give the app all the necessary rights to work smoothly for a smart wristband. Without them, notifications won’t come and synchronization will be interrupted. Modern versions of Android (10, 11, 12 and above) have strict energy saving policies.
Go to the phone settings, Apps, find Mi Fit. You need to enable permissions to access geolocation, contacts, phone and most importantly, background work. Without location permission, finding Bluetooth devices is often impossible due to system constraints.
| Permission | Status | Why? |
|---|---|---|
| Location | Allowed always | Search for Bluetooth devices |
| Auto-start | Included. | Working in the background |
| Notifications | Permitted. | Push notifications |
| Phone. | Permitted. | Making calls |
It is also recommended to fix the application in memory (block from closing) so that the system does not “kill” the synchronization process, this is done through the menu of running applications, swipe down or through the lock.
Solving Typical Connection Errors
If the standard procedure didn't help, maybe the problem is deeper: "Unconnected" error can indicate a conflict of firmware versions. Try updating the app to the latest version or, conversely, rolling back to a stable version if you're using beta.
Sometimes it helps to completely reset the bracelet to factory settings. In the tracker menu, find the System section (cog icon) and select Reset. After reset, all data on the bracelet will be deleted, but it will remain in the Mi Cloud cloud if synchronized.
⚠️ Note: When resetting the bracelet, make sure that the last synchronization with the application was successful so as not to lose data for the current day.
If the bracelet is visible to other phones but not yours, the problem is with your smartphone's Bluetooth module. Try resetting the network settings on your phone. This will delete all stored Wi-Fi passwords and Bluetooth devices, but often solves the driver problem.
Secret reset of Bluetooth on Android
Features of working with the application Mi Fitness
Xiaomi is gradually moving users to the new Mi Fitness (Zepp Life) app, the interface is different, but the connection principle remains similar. When you first launch the app will prompt you to find the device, it is important to log into the same Mi Account that was used before.
In the new application, the data synchronization process may take longer when you first start up. Don't interrupt the process even if it seems to be stalled. Connection stability depends on the quality of the Internet connection, as some of the data is uploaded from the cloud.
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The main condition for a successful connection is a clean Bluetooth history in the phone and the current version of the aggregator application.
If you’re switching from iPhone to Android or vice versa, data may not sync directly between platforms.Make sure your Xiaomi account is active and data is uploaded to the cloud before changing platform.