How to unlock Xiaomi fitness bracelet: from Mi Band 3 to Smart Band 8

Forgotten. PIN-Did the Xiaomi Mi Band code or bracelet lock after failed typing attempts?There was a sync error with the Mi Fitness app (formerly Zepp Life) and the device stopped responding to touch? These problems are familiar to many owners of Xiaomi fitness trackers – from the outdated Mi Band 3 to the latest Smart Band 8 Pro. Unlike smartphones, where unlocking often requires complex manipulation of the Mi Account account, bracelets offer simpler solutions.

In this article, we will discuss all the current ways of unlocking – from standard reset via the application to manual methods using ADB (for advanced users), special attention will be paid to the nuances for different models: for example, the Mi Band 7 and newer support unlocking via Bluetooth commands, and for the Mi Band 4 you may need a physical connection to charge, and you will learn how to avoid re-locking and what to do if the bracelet does not respond to reset.

Before you start: If your bracelet is locked due to loss of communication with your phone, first check whether Bluetooth is enabled and whether Mi Fitness conflicts with other applications (eg Google Fit).In 30% of cases, the problem is solved by simply restarting the smartphone.

1 Unlocking through the Mi Fitness (Zepp Life) app

The safest and most recommended way is to use the official app. It works for most situations except hardware failures. The algorithm works for all models starting with the Mi Band 3, but there are nuances for NFS-chip bracelets (for example, Smart Band 7 Pro).

Instructions:

• 📱 Open the Mi Fitness app (or Zepp Life for new models) on your smartphone.
• 🔄 Go to the Profile section → My devices and choose your bracelet.
• 🔓 Tap it on three points (⋮) in the upper right corner and select Unlock the device.
• 📲 Follow the instructions on the screen – confirmation may be required SMS Enter a password from Mi Account.

If there is no Unlock device, try an alternative path:

1. In the app, go to Profile → Settings → Delete the device.
2. Confirm removal and do not disconnect the bracelet from charging for 10 minutes.
3. Then reconnect it via Add Device - this will reset settings, including PIN-code.

⚠️ Note: When you delete the device through the application, all data from the bracelet (steps, pulse, alarm settings) is erased. If you have synced with the Mi Account cloud, some of the data can be restored.

Charge your bracelet at least 50% | Update the Mi Fitness app to the latest version | Turn off VPN and proxy on your phone | Make sure your phone and bracelet are close by (within a 1m radius)

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2. reset settings through the charger (Hard Reset)

If the bracelet doesn't respond to touch or connects to the app, hardware reset will help.This method works for all models, but for the Mi Band 5 and later, a special press sequence is required, different from the older versions.

General instruction:

1. Connect the bracelet to the charger (required original or certified).
2. For Mi Band 3/4: Press and hold the touch button (below the screen) for 15-20 seconds until the Mi logo appears.
3. For the Mi Band 5/6/7/8:1. Plug in to charge. 2. Press and hold the screen for 10 seconds. 3. Release when vibration appears. 4. Press and hold again for 5 seconds.

After resetting, the bracelet will automatically reset. If the screen does not respond, try an alternative method:

• 🔋 Turn off the bracelet from charging.
• 📵 Press the touch button (or screen) 5 times in a row at intervals of 1 second.
• 🔄 Connect to charging and hold the button for 10 seconds.

⚠️ Note: No hardware reset is provided for the Smart Band 8 Pro – only use unlocking via Mi Fitness or ADB. Attempts to "hard" reset can lead to loss of communication with the NFC-module.

3. Unlock through ADB (for advanced users)

If standard methods do not work, and the bracelet connects to the phone, but does not unlock, you can use the ADB debugging bridge. This method requires command line skills and is suitable for models based on Android Wear (for example, Xiaomi Watch S1) or bracelets with firmware Mi Band Master.

Step-by-step:

1. Install ADB Tools on your computer.
2. Enable the developer mode on the bracelet: Settings → About the device → Press 7 times on the "Build Number"
3. Activate Debugging by USB in the developer menu.
4. Connect the bracelet to your PC via a USB-OTG adapter (for Mi Band 7 Pro and later).
5. Follow the commands: adb devices adb shell pm clear com.xiaomi.wearable

For discharge PIN-code ADB use:

adb shell settings put secure lock_screen_password "1234"

Where 1234 is new PIN-code (replace with your own).

4 Unblocking through Mi Account (if tied)

If the bracelet is tied to the Mi Account, it can be unlocked through the web interface of Xiaomi Cloud. This method works even if you forgot the password from the bracelet, but remember the data from the account.

Instructions:

1. Go to the Mi Account website and log in.
2. In the Devices section, find your bracelet and click Delete.
3. Connect the bracelet to the phone again via Mi Fitness – it will reset all settings.

If the bracelet is not displayed in the list of devices:

• 🔄 Check if cloud sync is enabled in Mi Fitness settings.
• 📡 Try Forced Synchronization: Go to Profile in the app → Settings → Synchronize data.
• 📧 Make sure you use the same Mi Account that the bracelet was attached to.

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If you don't remember the Mi Account password, restore it through your linked email or phone number. To do this, click Forgot the password on the login page and follow the instructions. Do not use third-party services to "hack" your account - this can lead to locking the device over IMEI.

5 Unlocking through third-party applications (risks and alternatives)

Google Play and APKMirror can find apps like Mi Band Tools or Notify & Fitness for Mi Band that promise to unlock without reset, but you should use them with caution:

Pros:

• ✅ Data retention (steps, sleep history).
• ✅ Unlocking without Mi Account.

Cons and risks:

• ⚠️ Loss of warranty – Xiaomi does not support third-party firmware.
• ⚠️ Possibility of installing malware (especially in the APK unverified).
• ⚠️ Failures in the operation of sensors (pulsometer, accelerometer) after firmware.

If you still decide to use third-party software, follow these rules:

1. Download apps only from official sources (Google Play, APKMirror).
2. Before the firmware, make a backup of data through Mi Fitness.
3. Use versions that are compatible with your bracelet model (e.g. Mi Band Tools does not support Smart Band 8).

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Third-party apps can unlock the bracelet, but do not guarantee stable performance in the future.The official methods (via Mi Fitness or ADB) are safer and do not take away warranties.

6.What to do if the bracelet does not respond to reset?

If the bracelet is locked or not turned on after all the manipulations, the problem may be a hardware failure.

If the bracelet is physically damaged (for example, after a fall or water hit), do not try to unlock it yourself. Mi Band 7 and later uses a sealed case, and attempts to open at home will lead to irreversible damage.

To diagnose hardware problems:

1. Connect the bracelet to charge and check if it warms. Overheating (more than 40 ° C) indicates a malfunction of the battery.
2. Light a flashlight on the screen – if the image is barely noticeable, the problem is in the backlight.
3. Try connecting the bracelet to another phone (preferably on Android 10+).

⚠️ Warning: If the Smart Band 8 Pro bracelet does not respond to reset and is not detected by the phone, do not use "folk" methods such as dryer heating or closing contacts. NFC Loss of contactless payment functions.

7. How to avoid re-blocking?

To avoid the problem again, follow these guidelines:

• 🔐 Use a simple one. PIN-code (e.g. 1234 or 0000) that is easy to remember.
• 📱 Sync your data with Mi Account regularly (in Mi Fitness settings, enable Autosynchronization).
• 🔄 Update the firmware of the bracelet - in new versions, bugs with a lock have been fixed.
• 🚫 Do not install third-party firmware unless you are sure of its security.

For models with NFS (Smart Band 7 Pro, Smart Band 8 Pro):

• 💳 Don’t store your bank cards in the Mi Pay app if you often forget. PIN.
• 🔄 Reconnect the bracelet to your phone every 2-3 months to avoid synchronization failures.

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Back up your bracelet settings: in Mi Fitness, go to Profile → Settings → Backup. This will allow you to quickly recover data after a reset.

FAQ: Frequent questions about unlocking Xiaomi Mi Band