Modern wearables like the Xiaomi Mi Band 4 are complex microcomputers that can occasionally encounter software failures. Users often notice that the device stops responding to touch, does not display notifications or refuses to sync with the smartphone. In such situations, a standard screen switch is not helpful, since the system does not go into a state of complete rest, but continues to work in the background with an error.
Reboot is a universal method of solving most software problems, which allows you to clear RAM and restart system processes. For owners of the fourth model of the popular tracker, it is important to understand the difference between a conventional display shutdown and a complete restart of the system. A forced restart is often necessary when the touch screen completely ceases to respond to your actions and the standard menu becomes unavailable.
In this article, we will take a look at all the ways you can resuscitate your gadget, from standard methods through the app to emergency resets. You will learn how to interpret the device’s signals correctly and what steps to take if the bracelet is stuck. Properly following the instructions will help return the device to work without having to contact a service center.
Reasons for freezing and the need to restart
Fitness trackers are constantly running, continuously reading sensor data and maintaining Bluetooth connectivity. Mi Band 4 malfunctions are often caused by firmware errors or system cache overflows. When the device has been on for a long time, temporary files accumulate in its memory that can conflict with basic processes.
Another common problem is the loss of a stable connection to the smartphone. If the Mi Fit or Zepp Life application can not correctly transmit the data packet, the tracker can go into a waiting cycle, no longer responding to the user's commands, in which case rebooting the connection or the device itself becomes the only way out.
⚠️ Warning: If your bracelet is warming up without active training or charging, this may indicate a serious failure of the power controller. In this case, try to discharge the device completely before you put it on charge for a new attempt to turn on.
Also worth considering is the impact of third-party dials. Installing a heavy or unoptimized dial from third-party developers can cause Xiaomi's interface to stop rendering. Visually, it looks like a black screen, although the device can be turned on. It requires a full reset or reboot to bring back the standard interface.
Staff reboot through the device menu
The safest and most appropriate way to restart the system is to use an integrated interface, which is suitable for situations where the touch screen is partially or fully responsive to the presses, and you can navigate through the menu. First, you need to wake the device by touching the touch area or raising the wrist if the corresponding function is activated.
Then you scroll through the menu to the end right or left (depending on the firmware version and region) until you find an item with a gear or power icon. In the Mi Band 4 interface, this section is usually called "More" or "Settings", and inside you find the option to turn off the power.
- 🔋 Click on the “Switch Off” icon and confirm the action with a swipe or touch to start the shutdown process.
- 📱 Wait until the screen is completely out and the vibration confirmation disappears.
- ⚡ To turn on, reconnect the bracelet to the charger or use the menu call button if it is software active.
Once turned on, the device will perform a standard boot procedure, check the integrity of system files and restore the connection to the smartphone.Switching off ensures that all processes are completed correctly, which reduces the risk of damage to the activity database.
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If the menu on the bracelet does not open, but there is a vibration, try connecting to it through the application and initiate synchronization - this can "unlock" the interface.
Forced reset when getting stuck
When Xiaomi Mi Band 4 stops responding to any touches, it is called a “freeze” in which case the software buttons are not available and hardware intervention is required. It is important to understand that this model does not have a physical reset button available to the user without opening the case, so we use a combination of actions with the charger.
The first method is to connect the tracker to charging when it is hanging. Connecting the power cable often interrupts current processes and initiates a restart of the system. If the screen catches fire and the battery image appears, but the menu does not appear, try quickly pressing the touch area several times.
⚠️ Note: Do not use damaged cables or powerful chargers from Quick Charge-enabled smartphones. The Mi Band 4 requires a stable low voltage current, otherwise the controller may block charging to protect the device.
If charging doesn't work, you can try the "deep discharge" method. Leave the device on until the battery runs out completely and it shuts down itself. Then put it on charge. When turned on after full discharge, the system often automatically checks and resets the freeze processes.
☑️ Actions when getting stuck
Full reset to factory settings
If a conventional reboot doesn't solve the problem, a more radical measure may be needed, such as Hard Reset or factory reset, which will delete all the data, settings, and break the smartphone, and only use this method in extreme cases when other methods are ineffective.
You can reset in two ways: through the menu of the bracelet itself or through the app on your smartphone. You can find the System or Factory Reset section of the device menu. Proof of action usually requires holding your finger on the screen for a few seconds.
An alternative and more reliable way is to use the Zepp Life app (formerly Mi Fit), which you need to find the "Untie" or "Unbind" item in your device profile, and then the system will prompt you to clear the tracker data, which is guaranteed to return the software to its original state.
| Parameter | Reboot (Reboot) | Reset settings (Reset) |
|---|---|---|
| Data retention | Yes, the data is retained. | No, the data is deleted. |
| Implementation time | 30-60 seconds. | 2-5 minutes |
| Need for a PC/Phone | Not required | It is desirable to re-configure |
| Risk of losing settings | Minimum | Full (new one required) |
After the reset procedure, you'll have to re-interface the pairing process as if you've just bought a device. All workout and sleep data that's not synced to the cloud at the time of the reset will be permanently lost. So try to always keep the app running before critical action.
What happens to the firmware when you dump it?
Use of the application to control the device
The control center for Xiaomi Mi Band 4 is the app on the smartphone, which is often the easiest way to initiate a reboot or update if the tracker itself is unstable. In modern versions of Zepp Life and Mi Fitness, diagnostics functionality is expanded.
To access hidden control functions, go to the device profile, where you can find information about the charge level, firmware version and MAC-If you see that the data is not updated for a long time, try to press the sync button. Sometimes a simple request for status from the phone causes the bracelet controller to wake up».
- 📲 Open the app and make sure that the Bluetooth on your phone is active.
- 🔄 Click on the data update icon or pull the list down for forced synchronization.
- 🗑️ Use the “Delete Data” or “Reset” function if the bracelet does not respond on the screen interface.
You can also check for updates through the app. Often, bugs that cause freezes are fixed in new versions of the software. Updating the firmware is the best way to prevent future failures. The process takes several minutes and requires a stable Internet connection on your smartphone.
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The smartphone app has a higher management priority, so commands sent from the phone can reboot the bracelet even when its interface is partially frozen.
Firmware and software updates as a method of treatment
If reboot and reset don’t work, the problem may be that the operating system files are damaged.In this case, you need to reinstall or update the firmware. Xiaomi Mi Band 4 has a recovery mechanism that starts when you update.
The upgrade process should only be done with a charged battery (over 50%) and a stable connection to the Wi-Fi network on your smartphone. Interrupting the data record in the tracker’s memory can cause it to turn into a “brick” and stop turning on at all.
In the app, find Profile -> Mi Band 4 -> Version Update. If a new version is available, the system will prompt you to install it. During the process, do not turn off the bracelet from charging (if it is required for stability) and keep the smartphone nearby.
⚠️ Warning: Never attempt to install modified dials or firmware from third-party developers unless you are sure of their origin.This is the main cause of software failures that cannot be fixed with a normal reboot.
Once the upgrade is successful, the device will automatically restart, which takes longer than usual, as the files are re-indexed and the sensors are calibrated, and be patient and don't try to turn on the screen in the first minutes after the upgrade.