You've just unpacked the new Mi Band 7 or pulled out of the drawer the time-tested Mi Band 4, but the Mi Fitness app (or Zepp Life) stubbornly refuses to see the device? The situation is familiar to many: the bracelet flashes, the phone "seeks" it, and the connection never happens. 80% of the time the problem is solved in 5 minutes - if you know where to look.
This article is not about reboot shamanism (albeit it is about reboots), but about a systematic approach: from checking the obvious to diagnosing hidden conflicts. We will analyze the unique firmware errors of 2023-2026 that are not described in the official instructions of Xiaomi, and show how to circumvent the limitations of Android 13+ and iOS 17. If your bracelet is not detected on any device, we have a separate section with hardware diagnostics.
1. Basic checks: What you might have missed
Start with the obvious β these steps take 2 minutes, but fix 60% of the problems:
- π Charging the bracelet: Even if the indicator flashes, the charge level could fall below 5% - at this level, the Bluetooth module turns off. Connect to charging for 10 minutes and try again.
- π± Application version: in App Store/Google The Play still has an outdated version of the Mi Fit (it was replaced by Zepp Life in the game). 2022 Remove the old app and install a new one.
- π Reboot phone: on Android 12+ When you upgrade, you often drop Bluetooth permissions.
- πΆ Flight mode: check if it is activated on your phone or bracelet (on the Mi Band) 6/7 Hold the touch button. 5 switch-on).
Special attention to app permissions. On Android, go to Settings β Apps β Zepp Life β Permissions and turn on:
- π Geodata (yes, even for a bracelet!) the app uses it to synchronize time zone).
- π΅ Bluetooth (permission to work in the background).
- π Storage (necessary for backup copies of settings).
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If you have a Mi Band 5 or older, try turning off the battery savings for the Zepp Life app in your Android settings. On some firmware (e.g. MIUI 14), the system aggressively βsleepsβ the background processes.
Bluetooth Problems: How to Diagnose and Fix
If you don't see the bracelet in either Zepp Life or the Bluetooth settings on your phone, the connection is a problem.
- Check the visibility of the bracelet: on the Mi Band 4/5/6/7, swipe down on the home screen and find the Bluetooth icon. If it is crossed out, the bracelet does not look for a connection.
- Reset the list of associated devices: On Android: Settings β Connected devices β Previous connections β Xiaomi Mi Band β Forget. On iPhone: Settings β Bluetooth β tap on the βiβ next to the Mi Band β βForget this deviceβ.
Check the compatibility of Bluetooth versions
| Model bracelet | Minimum version of Bluetooth | Problems on old phones |
|---|---|---|
| Mi Band 3 | 4.0 | Android 11+ is not supported due to BLE 5.0 |
| Mi Band 4/5 | 4.2 | On iPhone 6 and older, communication breaks are possible |
| Mi Band 6/7 | 5.0 | Requires Android 8+ or iOS 12+ |
| Mi Band 8 | 5.2 | Not compatible with phones without LE Audio (such as Samsung Galaxy S8) |
A new problem has appeared on Android 13+: the system blocks the scanning of Bluetooth in the background.
- Go to Settings β Applications β Zepp Life β Additional β Permissions for background work.
- Enable the option "Allow background activity".
- In Settings β Battery β Power saving mode add Zepp Life to exceptions.
Another trap with the iPhone is that if you've previously connected the bracelet to another Android phone, iOS can "see" it as an uncertified device.
- Remove the Zepp Life app.
- Reboot the iPhone.
- Install the app again and try to connect.
Why does the bracelet connect to one phone but not to another?
4. firmware errors and software bugs
Xiaomi regularly releases updates for the bracelets, but sometimes they contain critical bugs. For example, in the firmware Mi Band 7 version 1.15.0.14 (released in January 2026) there was a bug that caused the device to not be detected on phones with Qualcomm Snapdragon 8 Gen 2.
How to check and update the firmware:
- Open Zepp Life and go to the profile of the bracelet.
- Slap the icon. βοΈ β "Firmware update".
- If the upgrade is available, plug the bracelet into charging (charge should be β₯30%) and wait until it is completed.
If the update has stopped or the bracelet has stopped responding:
- π Turn off the bracelet from charging.
- π Reboot it (on the Mi Band) 6/7/8 Hold the touch button. 20 seconds).
- π± Remove the Zepp Life app cache (Settings) β Annexes β Zepp Life β Warehouse β Clear the cache).
Check the bracelet firmware version | Update the Zepp Life app to the latest version | Clear the Bluetooth cache on your phone |Reset the bracelet and phone | Try connecting from another device-->
For Mi Band 5 and older, there is a hidden firmware reset feature via ADB (Android only):
adb shell am start -n com.xiaomi.hm.health/com.xiaomi.hm.health.upgrade.UpgradeActivityThis command forcibly triggers the update mode, even if the bracelet is not defined in the application.
5. Resetting the bracelet to factory settings
If nothing works, do a hard reset, which will remove all the data from the bracelet, but return it to its original state.
Instructions for different models:
- Mi Band 3/4: Turn off the bracelet from charging. On the home screen swipe left to "More." Select "Reset" β confirm.
Mi Band 5/6/7/8
- Go to the bracelet settings β System β Reset settings.
- Enter. PIN-code (default 0000 or 1234).
- Confirm the reset.
6.Challenges with Xiaomi account and servers
Xiaomi bracelets are linked to your Mi Account if you have:
- π Multiple accounts on your phone β the app may confuse anchorages.
- π The region of the account does not coincide with the region of the phone (for example, the account was created in Russia, and the phone was purchased in Europe).
- π Your account has been deleted or blocked (check at account.xiaomi.com).
If the bracelet was previously linked to another account:
β οΈ Note: Xiaomi blocks re-binding devices more than once every 30 days. If you sold/buy a used bracelet and it doesn't connect, contact support with a purchase check. Without proof of ownership, you can't unlock the device.
7. Hardware malfunctions: how to diagnose
If the bracelet is not visible on any device (check on 2-3 phones), the problem may be in the hardware:
- π Faulty battery: if the bracelet does not hold charge (discharges in 2-3 hours), the power controller can turn off the Bluetooth module.
- π‘ Bluetooth antenna: typical after falling or contact with water (even if the bracelet is waterproof).
- π Oxidized charging contacts: interfere with normal charging, which causes the device to work unstablely.
How to check:
- Charging test: Connect the bracelet to charge. After 10 minutes, turn off and check the temperature of the case: if it is cold, the battery will not charge.
- Bluetooth Test: Install the nRF Connect app (Android/iOS). Run the scan: if the bracelet does not appear in the list, the problem is in the module.
External examination
- Check the integrity of the body (cracks, chips).
- Light a flashlight on the charging contacts - oxidation looks like a green or white coating.
If the Mi Band 8 bracelet is not turned on at all:
- Try charging it from another power supply (use charging on 5V/1A).
- Press and hold the touch button for 15 seconds, sometimes it will βresuscitateβ the device.
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If the bracelet fell from a height of >1 meters or came into contact with salt water, the probability of hardware failure is 90%, in which case repair will cost more than buying a new device.
8. Features of connection on different OS
The pairing algorithm is different on Android and iOS.
| Problem. | Android | iOS |
|---|---|---|
| The bracelet is not visible on the list of devices | Turn on "Developer Mode." In Settings β System β Developer Mode, turn on "Bluetoothbug". | Go to Settings β Privacy β Analytics and Improvements. Enable βShare data with Appleβ (paradoxically, but it helps). |
| The conjugation is interrupted by 90% | Disable VPN and antivirus (for example, Avast blocks data transfer). | In Settings β Main β Reset βNetwork settingsβ. |
| The app freezes when connected | Clear the cache of Google Play Services. | Remove and install the app again (iOS caches data more aggressively than Android). |
On Android 14+, a new problem has emerged: the system requires permission to notify you to work with Bluetooth LE. If you don't give it, the bracelet will connect but not synchronize the data.
- Go to Settings β Applications β Zepp Life β Notifications.
- Enable all types of notifications.
- Reboot the phone.