The Chinese giant’s first introduction to wearables often begins with a pleasant surprise at the build quality, but can end in confusion if the device does not respond to touch immediately after being removed from the box. Many users, when purchasing the Xiaomi Mi Band 4, face a situation where the tracker screen remains black, creating a false impression of a non-functional device or full discharge. In fact, this model, like most gadgets in the Mi Smart Band line, comes from the factory in a special transport mode that blocks the interface until the moment of the first full charge.
Understanding the physics of lithium polymer batteries used in modern fitness bracelets helps you understand the need for initial action. Even if the charge indicator shows a percentage, the voltage in the cell can be insufficient to start the operating system of the device, so ignoring the primary recharging stage is the most common mistake. In this article, we will discuss in detail the activation algorithm that ensures that your gadget starts correctly and prolongs the life of its battery.
The process of revitalizing the tracker requires not only the availability of a charger, but also the right software on the smartphone, since it is the main control center for setting up all the functions. Without synchronization with the Mi Fit platform (or Xiaomi Wear), the bracelet will remain just a beautiful accessory, unable to track activity or notifications. Let’s go through all the stages consistently to make your fitness tracker work at full speed.
Primary charging as the key to activation
The most important and often ignored step is to connect the device to the power source immediately after unpacking. Xiaomi engineers specifically put the gadgets into deep sleep mode to save battery life during long-term storage in warehouses and transportation around the world. To get the capsule out of this state, you need to remove it from the silicone strap and insert it into the charging unit that comes with the kit.
Notice the correct position of the contacts: there are two metal pads on the bottom of the capsule that should fit tightly into the charger contacts. If you plug the bracelet in correctly, the battery icon and current charge percentage should appear on the screen, as well as a vibration signal. Sometimes it takes a few seconds for the system to wake up and start displaying information.
⚠️ Warning: If the screen doesn't catch fire immediately after you're connected, don't panic. Leave the device charging at least for a few minutes. 15-20 minutes, as the deep discharge takes time to set the minimum voltage required to turn on the display.
Standard food can be used for food. USB-a computer port or smartphone adapter, but experts recommend avoiding powerful fast charging units with a current above 1 Ampere, since the power controller in such compact devices may not respond correctly to sudden voltage surges. USB 2.0 on a laptop or an old adapter with a current of 500 mA.
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Use dry soft cloth to wipe the contacts on the capsule and charger before plugging in - oxidation or fat from the fingers can prevent current from passing.
Installation and configuration of the Mi Fit application
Once the MI logo or dial is displayed on the bracelet screen, the software part begins to be controlled exclusively through the mobile application, which acts as a bridge between wearable electronics and cloud services. Mi Fit remains the main application at the moment, although the company is gradually implementing a new application Xiaomi Wear, which has a more modern interface, but may be less stable for older models.
Download the program should only be from official sources: Google Play Market for Android users or App Store for iPhone owners. APK-files or modified versions of applications may lead to leakage of personal data or inability to correctly synchronize the firmware of the device. After installation, you need to register a Mi Account if you do not already have one, or log in to an existing one.
The registration process requires specifying the region that must match the region of your account in the app store to avoid problems with displaying data. In the application settings, it is important to immediately allow all requested accesses: geolocation, notifications, background operation and access to Bluetooth. Without these permissions, the tracker will not be able to transmit pulse data or steps, and will constantly lose communication with the smartphone.
- 📱 Download the official Mi Fit app from a trusted store.
- 📝 Sign up or sign in to your Mi Account.
- 📍 Set all necessary permits to work in the background.
- 🔗 Enable Bluetooth and geolocation on your smartphone.
Interconnection of the bracelet with a smartphone
Now that the hardware is activated by charging and the software is installed, you need to combine them into a single system. Open the application and go to the Profile tab, then click Add Device. The system will suggest you select the type of device from the list — in this case, this is the Mi Smart Band 4. It is important that the bracelet is in close proximity to the phone, no more than 1-2 meters.
Once you select the model, the app will start looking for available devices, and once you have a pairing code that is identical to what you see on the vibraslet, you need to confirm the action by clicking a tick on the tracker screen, which is a security mechanism that prevents your device from accidentally connecting to other people's smartphones in public places.
In some cases, automatic search may not work the first time, then you should use manual pairing mode through the Bluetooth settings of the smartphone, although modern versions of the application try to minimize the need for manual intervention. If the device is found but does not connect, try to remove it from the list of previously paired devices in the Bluetooth settings of the phone and repeat the procedure.
☑️ Checklist of successful pairing
Updating the firmware for stable operation
Immediately after the first connection, the app will likely offer to update the device’s software, a critical step, as the factory version of the firmware may contain errors that affect sensor accuracy or battery life. The upgrade process takes 5 to 15 minutes and requires a stable Internet connection and a battery charge of at least 50%.
During the upgrade, the bracelet screen will burn, displaying the progress bar, and the device will vibrate at the completion of the stages. Interrupting this process can cause the gadget to stop turning on, so make sure that no one will disturb you or the smartphone at this point.
| Parameter | Meaning/Action | Recommendation |
|---|---|---|
| Battery charge | At least 50% | It is better to charge up to 100% before the start |
| Distance | Not more than 1 meter | Put your phone and bracelet next to the table. |
| Internet | Stable Wi-Fi | Avoid network interruptions |
| Time. | 5-15 minutes | Do not open other heavy applications |
⚠️ Warning: Never attempt to break a Bluetooth connection or turn off your smartphone during the firmware update process, this may cause permanent damage to the device's software.
Solving problems with on and charging
Despite the simplicity of the procedure, users sometimes find it difficult when the device refuses to respond even after prolonged charging. Often the reason lies in the oxidation of the contacts or contamination of the back of the capsule with sweat and skin fat, which creates an insulating film. Careful cleaning of contacts with an alcohol napkin or a wipe in most cases solves the problem.
Another common problem is the fault of the charging cable itself or USB-Try connecting the charger to another power source or using another power source. USB-cable (if you have a compatible connector) It is also worth checking whether the contact inside the charging dock itself has broken, as it is consumable that often fails.
What to do if the bracelet warms up when charging?
If nothing helps, it may be a software problem that requires a full reset, although it is more difficult to do this on models without buttons, in which case it helps to keep the touch zone (if it reacts) for a long time or wait for the battery to completely discharge to zero, after which you should put the device back on charge.
Customization of personalization and functions
Once successfully enabled and updated, you can have a wide range of settings that turn a simple step counter into a smart assistant. You can choose a dial in the app: the built-in options are simple enough, but the dial store offers thousands of designs, from minimalist to complex, with weather, moon phases and activity.
You can choose which apps will transmit notifications on your wrist: calls, SMS, messengers, mail. It is important not to overdo it, otherwise the constant vibration will be annoying and the battery will die faster. Mi Band 4 also has support for displaying emoji in messages, which makes reading notifications more comfortable.
- ⌚ Select and install your favorite dial from the store.
- 🔔 Set up a list of apps for push notifications.
- ❤️ Set targets for steps and pulse.
- 🌙 Set up the "Do Not Disturb" mode and lift your wrist.
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Properly adjusting notifications and avoiding unnecessary features (such as constant pulse measurement) can increase battery life from 10 to 20 days.