The new Xiaomi Mi Band 4C fitness bracelet (also known as the Mi Smart Band 4C or Mi Band Lite) is in sleep mode immediately after being removed from the package.This is a standard procedure for keeping the battery charged during prolonged storage and transportation. Many users mistakenly believe that the device is malfunctioning unless the screen lights up immediately after removing the protective film.
To activate the tracker, you need to perform a series of sequential actions aimed at waking the power controller. The primary activation process does not require a computer or complex equipment, but requires strict adherence to the order of connection to the smartphone.
In this guide, we will take a detailed look at all the steps, from removing the gadget from the box to fully syncing with your account, and learn how to avoid common errors that can lead to device locking or problems with the further operation of the sensors.
Preparation of the device for the first launch
The first step is to visually inspect the device and its components. - Xiaomi Mi Band 4C complete with built-in USB-With a plug, which eliminates the need to search for a separate charging cable, carefully remove the tracker from the strap if it is packed separately, or find a flexible protrusion on one side of the body.
Pay attention to the contact areas. On the inside of the tracker, where the optical pulse sensor and charging contacts are located, there should be no trace of factory protective film. Often, manufacturers seal these contacts with a thin layer of insulator that must be removed before first charging.
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Carefully inspect the ends of the device: sometimes the protective film can be transparent and almost invisible, which prevents contact with the charger.
If you find a film like this, gently tuck it in with a nail or a thin tool and remove it, and if you don't contact it, it will not get a signal to connect to the network and not go out of deep sleep.
- 🔍 Check the body for visible defects or cracks.
- 🛡️ Make sure that the protective film from the contacts is completely removed.
- 🔌 Look at this. USB-plug-in.
- 📦 Save the packaging in case of warranty service.
Primary charging and screen activation
The most important step is the power supply. Because the battery could have run low during storage, it may take a few minutes for the device to wake up. 4C standard USB-port of the computer or smartphone power adapter.
Insert the tracker into the connector so that the contacts fit tightly together. The screen should light up within 5-10 seconds after connecting. If this does not happen, do not panic: leave the device on charge for 15-20 minutes. In some cases, the controller takes time to start the power management system.
⚠️ Note: Do not use high-power Quick Charge (Power Delivery) chargers. Although modern controllers usually regulate current, it is safer to use a port for a small tracker battery. USB 2.0/3.0 computer or old adapter on the 1And.
Once the Mi or Zepp logo appears on the screen, the device is considered activated. Now it's ready to pair. If the screen catches fire but goes out immediately, press the touch button on the front panel to wake the display.
☑️ Verification of activation
Installation and configuration of the Mi Fitness application
For full operation Xiaomi Mi Band 4C The main application for this model is Mi Fitness (formerly known as Zepp Life, but for the first time). 4C Often you need Mi Fitness or the current version of Zepp, check it out. QR-box-code).
Download the app from the official Google Play or App Store. Do not use third-party apps APK-files from unverified sources, as this may lead to a leak of personal health data. Once installed, launch the application and create a Mi Account or log in through a profile Google/Facebook.
Why do you need an account?
In your profile settings, you can specify the correct data: height, weight, date of birth and gender. These parameters are critical for algorithms that calculate calorie expenditure and sleep quality. Wrong data will lead to incorrect analytics.
| Parameter | Impact on work | Where to change |
|---|---|---|
| Height and weight | Accuracy of calorie calculation | User profile |
| Date of birth | Age-specific activity rates | User profile |
| Purpose of steps | Motivation and notification | Target settings |
| Time zone | Synchronization of time | System settings |
Interconnection of the bracelet with a smartphone
The connection process is done through the application interface, not through the standard Bluetooth settings menu of Android or iOS. If you try to connect the device through the system settings of the phone, the data synchronization will not work.
Open the Mi Fitness app, go to the Devices tab and click Add Device. Select the Mi Smart Band 4C model from the list. The app will request permission to use Bluetooth and geolocation - be sure to confirm these requests, otherwise it will not be possible to search for the device.
When the app detects the tracker, the confirmation code will appear on the smartphone screen and on the bracelet screen. Make sure the codes match, and click "Confirm" or tap the bracelet screen. The process of installing service files and pairing will begin.
- 📱 Keep your smartphone and bracelet close (no more than 1 meter).
- 📶 Make sure that the Bluetooth on your phone is activated.
- 🌍 Allow geolocation access for Bluetooth Low Energy.
- 🔄 Do not switch to other applications during pairing.
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The pairing is always initiated from the app, not from the smartphone’s Bluetooth settings, a rule of thumb for all Xiaomi devices.
Setting up language, time and notifications
Once successfully connected, the Xiaomi Mi Band 4C automatically syncs time and date with your smartphone, but the interface language can remain English if the app does not select Russian or if the bracelet firmware does not support multilingualism out of the box.
To change the language, go to the device profile in the app, find the "Bracelet settings" option and select "Language." If Russian is not on the list, you may need to update the firmware, and you can adjust the time format (12/24 hours) and the wrist lift to activate the screen.
In the Notifications section, you can choose which apps will duplicate messages on the wristband screen. System notifications, calls, SMS, messaging from instant messengers – all of these can be configured flexibly. Remember that the display of Cyrillic (Russian text) in notifications depends on the firmware version.
⚠️ Note: If notifications don't come, check your smartphone's power saving settings. Android can "kill" the background process of the Mi Fitness app, causing communication with the bracelet to be interrupted.
Update of firmware and calibration
Immediately after the first turn on, it is strongly recommended to check for updates. Manufacturers regularly release patches that correct optical sensor errors, improve autonomy and add new dials.
To update, go to your device profile and click on “Update Check.” The process can take 10-15 minutes, while not disconnecting the bracelet from your phone or opening the Mi Fitness app to keep the data recording.
What to do if the update is suspended?
After the update, it is recommended to calibrate the pedometer. Walk a known distance (for example, 100 meters) and compare the data on the bracelet with reality.