Xiaomi Mi Band 4 Connection to Android via Bluetooth: A Complete Guide to Error Solutions

Why Mi Band 4 is not connected to your phone and how to fix it

The Xiaomi Mi Band 4 fitness bracelet remains one of the most popular wearables due to its combination of affordable price and wide functionality. However, many users face problems when connecting to an Android smartphone for the first time via Bluetooth, most often due to outdated firmware bracelet, conflicts with other gadgets or incorrect phone settings.

In this article, you will find not only step-by-step pairing instructions, but also unique solutions for errors such as “Unconnected”, “Device not found” or endless search through the Mi Fit application. We will also learn how to configure notifications, synchronize data and update the bracelet firmware without the risk of “bricking”.

If your Mi Band 4 has already been paired with another phone, you need to reset it to factory settings before connecting to a new device, which will eliminate problems with Bluetooth cache and profile conflicts. How to do this correctly, read the section on resetting.

Preparation of the phone and bracelet for connection

Before you start pairing, make sure your smartphone meets the minimum requirements:

• 📱 Android Version: 5.0 and higher (recommended 6.0)+ steady-work).
• 🔄 Bluetooth: version 4.0 LE or newer (check in Settings) → The phone. → Information on the PO).
• 📲 Free space: at least 100 MB for Mi Fit installation and data cache.
• 🔋 Bracelet charge: at least 20% (at low charge synchronization failures are possible).

Also, remove all previously installed versions of Mi Fit or Zepp Life from your phone’s memory – conflicting versions often lead to connection errors.

• 🌐 Google Play (Mi Fit)
• 🌐 Amazon Appstore (alternative for regions without Google)

If you connect the bracelet to a Xiaomi, Redmi or POCO phone, pre-disable the dual device function in Settings → Connected Devices. This option can block pairing with the Mi Band due to Bluetooth Low Energy (BLE) protocol conflict.

Step-by-step: how to connect Mi Band 4 to Android

Follow this algorithm to avoid common mistakes:

1. Turn on Bluetooth on your phone: Go to Settings → Connections → Bluetooth and activate the switch. Make sure Visibility is on (some phones call it Detection).
2. Launch the Mi Fit app: You will need to register a Xiaomi account (via Google, Facebook or phone number) when you first start.
3. Add a new device: Click on the + icon in the top right corner → select the Bracelet → Mi Smart Band 4.
4. Bluetooth pairing: When the bracelet appears on the list (the name will be MI Band 4_XXXX), You can tap it. The bracelet will appear on the screen. 6-code - confirm it in the application.
5. Update of firmware (if necessary): After connecting, Mi Fit will offer to update the bracelet software. Do not interrupt the process - this can lead to a failure. Average update time: 5-10 minutes.

If at the interface stage there is an error "Can not connect", try the following steps:

⚠️ Note: Do not use the Quick Connection feature or NFC to pair with Mi Band 4, this could cause protocol failure BLE. Connect only through standard Bluetooth search in the Mi Fit app.

Solving common connection errors

Even if you do the instructions correctly, you can have problems, and here's a table of common errors and how to fix them:

If the bracelet is connected, but after a few hours the connection disappears, check the energy saving settings:

1. Go to Phone Settings → Applications → Mi Fit → Battery.
2. Turn off the Battery Optimization option.
3. Add Mi Fit to the Exclusion List (some phones call it Secure Apps).

💡

If the bracelet does not respond to touch after connecting, reset via Settings → Reboot in the Mi Band 4 menu. To do this, quickly tap the touch button of the bracelet 3 times until the menu appears.

Setup of notifications and data synchronization

After successful connection, configure the display of notifications from the phone to the bracelet:

1. In Mi Fit, go to Profile → Mi Smart Band 4 → Notifications.
2. Activate the Display Notifications switch.
3. Select the apps you want to see notifications from (e.g. WhatsApp, Telegram, Incoming calls).
4. Configure the Display Style: Vibration only, text + vibration or full text.

To synchronize the steps, sleep and pulse data:

• 📊 Enable Autosynchronization in bracelet settings.
• 🔄 Set a synchronization interval (every hour is recommended).
• 🌐 Connect to your Google Fit or Apple Health account (if you use multiple trackers).

If notifications do not arrive:

⚠️ Attention: On phones Xiaomi/Redmi shelled MIUI You also need to allow auto-start for Mi Fit. For this, go to Settings → Annexes → Mi Fit → Autostart and turn on the option.

Update to the firmware Mi Band 4 without errors

Regular firmware updates fix bugs and add new features to update the bracelet software:

1. Make sure the bracelet is charged 50% or more.
2. Connect your phone to a stable Wi-Fi network (update via mobile internet may be interrupted).
3. In Mi Fit, go to Profile → Mi Smart Band 4 → Firmware Update.
4. If a new version is available, click Update and wait until it is completed (the bracelet will reboot automatically).

If the update is hanging:

• 🔌 Do not turn off the bracelet from charging (if it was on charging during the upgrade).
• 📱 Restart the Mi Fit app and try again.
• 🔄 If the bracelet does not respond, reset through Settings → Reboot (hold the touch button for 10 seconds).

Reset Mi Band 4 to factory settings

If the bracelet is unstable or you want to transfer it to another user, reset:

1. On the bracelet, go to Settings (scroll down to the icon) ⚙️).
2. Select Resetting (Icon) 🔄).
3. Confirm the action by touching the tick. ✅.

After the bracelet is dropped:

• 🔄 Remove from the list of associated devices in Mi Fit.
• 📱 Requires reconnection as a new device.
• 🗑️ Delete all local data (steps, sleep, exercise).

If resetting doesn’t help solve the problem (e.g., the bracelet doesn’t turn on or respond to touch), try a forced reset:

1. Connect the bracelet to the charger.


2 Hold the touch button for 20 seconds until the Mi logo appears.




3. disconnect from charging and wait for full load.

FAQ: Frequent questions about connecting Mi Band 4