How to turn on the Xiaomi Mi Band 4C fitness bracelet: from charging to the first setup

Xiaomi Mi Band 4C is a compact and functional fitness bracelet that helps track activity, sleep and notifications from the phone. But what if the device does not respond to pressing or does not show signs of life at all? In this article, we will discuss all possible ways to turn on the Mi Band 4C, from basic charging to solving emergency situations.

Many users face the problem of not turning on the bracelet after purchase or long downtime. The reasons can be different: a discharged battery, a firmware failure or even a factory defect. We will explain in detail how to properly charge the device, activate it through the Mi Fit application, and what to do if the Mi Band 4C stubbornly does not want to “wake up”.

It is important to understand that the Mi Band 4C turn on procedure is different from newer models (for example, Mi Band 6 or 7), so instructions for other versions may not work. If you just unpacked the bracelet or pulled it out after a long storage, start with the charging section. If the device previously worked but suddenly stopped turning on, pay attention to the diagnostics unit.

1.Preparation for the first turn on: what to check before charging

Before you connect the Mi Band 4C to the charger, make sure you follow all the preliminary steps. Often users miss the obvious moments, which makes the bracelet not respond to manipulation.

First, check the completeness: the box should contain the bracelet itself, the charging cable (usually with a USB-Type-A) and a brief instruction. If the cable is not available, this is a reason to be wary: you may have been sold a used device or a fake. The original Mi Band 4C cable has magnetic contacts and Xiaomi markings.

Check the bracelet for physical damage:

• 🔍 Cracks or chips on the body (especially near the button)
• 💧 Moisture traces under the screen (unless the bracelet is waterproof)
• 🧲 Foreign objects in the charging connector

If defects are found, do not connect the device to power, this can aggravate the problem.

Also make sure you have a compatible smartphone with the Mi Fit app installed (available for Android 5.0+ and iOS 10.0+). Without it, full bracelet activation is impossible. If the phone doesn't support the app, you can temporarily use a friend's or relative's device for initial setup.

Charging the bracelet: the correct procedure and typical errors

The most common reason the Mi Band 4C doesn’t turn on is because the battery is completely dead, and the manufacturer claims that the bracelet can last up to 14 days on a single charge, but after long storage (for example, in a warehouse), the battery often runs out of power, in which case a standard USB connection may not work the first time.

To properly charge the Mi Band 4C, follow the following steps:

1. Connect the magnetic connector of the charging cable to the contacts on the back of the bracelet.
2. Connect the other end of the cable to the charger with a 5V/1A output (a standard smartphone adapter will do).
3. Leave the bracelet on charge for at least 30 minutes, even if the indicator is not on.
4. After 30 minutes, check if the charging icon (lightning battery) appears on the screen.

If the light doesn’t catch fire, try another cable or USB-port.

Typical errors when charging:

• ⚡ Use of unoriginal cable (may not provide the required voltage)
• 🔌 Connection to USB-Computer port (sometimes not enough power)
• 🕒 Insufficient charging time (a deep discharge bracelet can only wake up through a slug). 1-2 hour)

If the bracelet does not show signs of charging for more than 2 hours, this may indicate a malfunction of the battery or power controller, in which case it is recommended to contact the service center.

3. Activation of the bracelet through the Mi Fit app

After successful charging of the Mi Band 4C, you need to link it to the smartphone through the official Mi Fit application. Without this procedure, the bracelet will only work in a limited mode (time display and pedometer).

Step-by-step activation instructions:

1. Install the Mi Fit app from the App Store or Google Play.
2. Sign up or sign in to your Xiaomi account (required!).
3. Click on the plus in the upper right corner and select Add the device.
4. In the list, find the Mi Smart Band 4C and click on it.
5. Follow the instructions on the screen: Allow access to notifications, geolocation, and contacts.
6. When the app asks you to bring the bracelet to your phone, tap the touch button on the Mi Band 4C to wake up the screen.
7. Wait until the synchronization is complete (it can take up to 5 minutes).

If you have a “Can’t Find the Device” error at the connection stage, try:

• 📱 Reboot your smartphone and bracelet
• 🔄 Turn Bluetooth on/off on your phone
• 📌 Make sure that the distance between the devices is not more than 1 meter
• 🔧 Update the Mi Fit app to the latest version

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If the bracelet is not identified through Mi Fit, try using the Zepp Life app (formerly Mi Fit in some regions), which sometimes works better with older models.

4.What to do if the Mi Band 4C does not turn on after charging

If the bracelet does not show signs of life even after prolonged charging, the reasons may be as follows:

If the bracelet vibrates when connected to a charger, but the screen remains black, try a forced reboot:

1. Connect the bracelet to the charger.
2. Press the touch button for 10-15 seconds.
3. If the Mi logo appears, release the button and wait for the download.

⚠️ Warning: Don't try to disassemble the bracelet yourself to check the battery! 4C It has adhesive body connection, and unprofessional repairs can cause the device to fail completely. If the warranty is still valid, contact your Xiaomi authorized service center.

5. Reset to factory settings: when and how to do

If the bracelet is turned on but is not running smoothly (e.g., it doesn’t sync with the phone or the screen is “glutching”), it can help hard reset, which will return all settings to factory settings but delete the stored data (if they weren’t synchronized with Mi Fit).

Resetting instructions:

1. On the bracelet, go to the menu, swiping the screen to the right until you find the Settings item (the gear icon).
2. Select additionally → Resetting settings.
3. Confirm the action by clicking the tick.
4. The bracelet will reset and return to its original settings.

If the screen does not respond to touch, you can reset through the application:

1. Open the Mi Fit and select your bracelet.
2. Go to Device Settings → Untie the device.
3. Confirm the undocking and re-add the bracelet, as in the first setting.

⚠️ Note: Do not reset if the bracelet is less than 20% discharged.This can lead to incomplete reset and additional firmware errors.

Checking after activation

After successful activation and synchronization with Mi Fit, it is recommended to check the basic features of the Mi Band 4C to make sure that it is serviceable:

• ⏱️ Time and date: should automatically sync with your phone. If this does not happen, update the data manually through the app.
• 🚶 Stepmer: Come in 10-20 Steps – the counter must be updated on the bracelet screen.
• 🔔 Notifications: Send a test message to your phone – the bracelet should vibrate and show text.
• 💤 Sleep monitoring: Lie down and wait 5-10 minutes – the device must automatically determine the phase of sleep.
• 🔋 Battery charge: the level must be displayed correctly (without jumps from 100% to 1% per minute).

If any of the functions are not working properly, try the following:

• 🔄 Reset the bracelet (press the button for 10 seconds).
• 📱 Reinstall the Mi Fit app.
• 🔧 Update the bracelet firmware through the Settings menu → Update of the PO.

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If the bracelet continues to work unstable after all the manipulations, check it on another smartphone. this will help to eliminate problems with your phone or Mi Account.

7. Frequent questions and problem-solving

This section contains answers to the most common questions of Mi Band 4C users.

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Before contacting the service center, try to contact Xiaomi support via an official chat. Sometimes the problem is solved remotely (for example, by resetting an account).