How to turn on Xiaomi Mi Band 4 smart watch: from charging to first setup

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, new users often have questions about how to turn on the bracelet correctly, what to do if it does not respond to clicks, and how to sync it with a smartphone. In this article, we will discuss all the steps from the first charging to setting up through the official application.

It's important to understand that the Mi Band 4 doesn't have a traditional power button. Instead, activation happens automatically after you connect to the charger or through an app. If the bracelet doesn't turn on, the problem may lie in a dead battery, an incorrect charging connection, or a software failure, and we'll look at all possible scenarios and give clear instructions for each case.

Preparation for the first inclusion: what to check

Before you try to turn on the Mi Band 4, make sure that all the prerequisites are met. Often users miss the basic steps, which makes the bracelet seem unworkable.

• 🔋 Charging the device. The new bracelet may have a minimum charge that is not enough to turn on. Connect it to the charging cable for 30 to 60 minutes.
• 📱 Download the official Mi Fit app (for Android) or Zepp Life (for iOS) from the App Store or Google Play.
• 🔄 Smartphone compatibility. Make sure your phone runs Android 5.0+ or iOS 10.0+. Older versions of the OS may not support bracelets.
• 🔌 Check if there's any damage to the charger, sometimes the contacts get oxidized or contaminated.

If you buy a used bracelet, reset it to factory settings, plug it into charging and hold the touch button for 10 to 15 seconds until the vibration appears, ensuring that previous settings do not interfere with the new connection.

⚠️ Note: Do not use chargers from other Mi Band models (e.g. Mi Band 3 or Mi Band 5) and, despite the similarity, they may have different voltages, which will damage the battery.

How to Charge Mi Band 4 Before First Enablement

Charging is a key step without which the bracelet will not turn on. The Mi Band 4 uses a built-in 135 mAh battery that is charged through a special magnetic contact cable. Here's how to do it correctly:

1. Remove the bracelet from the strap by pulling the capsule towards the screen.
2. Connect the magnetic connector of the charging cable to the contacts on the back of the capsule, and the correct connection is accompanied by a slight click.
3. Connect. USB-cable-connector (5V/1A) computer.
4. Wait for the charging icon (lightning battery) to appear on the screen. If the icon doesn't appear, check the density of the contacts.

The full charge time is about 2 hours, and then the bracelet will automatically turn on or be ready to activate via the app. If the screen remains empty for more than 10 minutes after connecting to the charger, try the following steps:

• 🔌 Reconnect the cable, making sure the contacts are clean.
• 🔄 Try another one. USB-port.
• 📵 Make sure the bracelet is not in deep discharge mode (in which case it may take 30-60 minutes to wake up").

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If the bracelet is not charging, wipe the contacts on the capsule and cable with an alcohol wipe. Oxidation or pollution is a common cause of charging problems.

Activate Mi Band 4 with the Mi Fit app

Once charged, the bracelet is ready to sync with your smartphone. Use the official Mi Fit app (or Zepp Life for iOS) to do this.

Install the Mi Fit| app | Register or log in to your Xiaomi | Turn on Bluetooth on your smartphone |Click Add Device in the app |Select Mi Band 4 from the list |Follow the instructions on the screen-->

When you connect, the bracelet can vibrate and blink, which is normal.

• 🔄 Reboot Bluetooth on your smartphone (turn off and turn on again).
• 📱 Make sure there are no active phones on the phone. VPN or firewalls blocking the connection.
• 🔋 Check the charge level of the bracelet (must be at least 20%).

Once synchronized successfully, the app will prompt you to update the bracelet firmware, and updates are required to ensure that all functions, including notifications and sleep monitoring, work properly, and do not interrupt the process until it is completed automatically.

Sleep monitoring|Stepper|Notifications|Pulse control|Alarm clock|Other-->

Problem Solving: The bracelet is not switched on or synchronized

If the Mi Band 4 doesn’t respond to charging or connect to the phone, the reasons may be hardware or software.

If the bracelet still doesn't turn on, check it on another charger or try to connect it to another smartphone. In rare cases, the problem may be a malfunction of the battery - then you will need to contact a service center.

⚠️ Warning: Don't disassemble the bracelet yourself to check the battery. Xiaomi Mi Band 4 has a sealed body with a protection class IP68, And an attempted autopsy will result in loss of water resistance.

Configure the main functions after inclusion

Once you have successfully connected, customize the bracelet to your needs. The Mi Fit app offers the following options:

• 🔔 Notifications: Select which apps will send alerts to the bracelet (calls, SMS, messengers).
• 💤 Sleep monitoring: Activate automatic sleep phase tracking (deep, light, REM).
• ⏱️ Set up vibration alarms, including smart alarms (adjusted for sleep phases).
• 🏃 Activity goals: Set daily goals by steps, calories, or activity time.

Access to additional features, such as heart rate control or exercise regimens, may require a firmware update to check whether the software is up to date:

1. Open the Mi Fit and go to the bracelet profile.
2. Click on the three dots in the top right corner and select Firmware Update.
3. If a new version is available, confirm the installation and wait until the end (the bracelet will reboot automatically).

Frequent User Mistakes and How to Avoid Them

Even after successful activation, many users experience problems due to incorrect actions.

• 🚫 Ignoring updates: Failure to update firmware causes sensors and notifications to malfunction.
• 🔋 Use of non-original chargers: Cheap cables can damage contacts or battery.
• 📵 Turning off Bluetooth to save charge. Without a permanent connection, the bracelet won't sync data.
• 💦 Swimming with a bracelet without a leakproof check, despite IP68, After mechanical damage, water resistance is lost.

To extend the life of the Mi Band 4, follow these guidelines:

• 🔄 Reload the bracelet once a month (hold the 5 seconds button).
• 🧼 Regularly clean the body and strap from sweat and dirt.
• 🔋 Charge the bracelet to 100% at least once every 2 weeks, even if it is not completely discharged.

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Not only does regular synchronization with Mi Fit save data, it also prevents bracelet failures. Try to open the app at least once every 3-4 days.

Alternative ways of inclusion (if the standard method does not work)

If the bracelet does not respond to charging and does not turn on through the application, try alternative methods:

1. Hard reboot: 1. Connect the bracelet to charge. 2. Hold the touch button for 20 to 30 seconds. 3. Release after double vibration. This method resets temporary software errors.
2. Connect to another smartphone: Try syncing the bracelet to another phone (like friends or family) and sometimes the problem lies in your device's Bluetooth settings.
3. Use of third-party apps: Apps like Notify & Fitness for Mi Band or Tools & Mi Band can wake up the bracelet if official software fails, but use them with caution - they require additional permissions.

If none of these methods worked, the motherboard or battery may have failed, and if you do, contact a Xiaomi authorized service center, you will lose your warranty if you repair it yourself.

FAQ: Answers to popular questions