Resetting on the Xiaomi Mi Band 4 fitness tracker is a standard procedure that is often required when selling a device, transferring it to another user or fixing software errors. Once the data cleanup command is completed, the screen goes off and the bracelet goes into standby mode, waiting for a new activation. Many users mistakenly believe that the device is turned off or broke, but in fact it is simply in a state of deep energy saving until the moment of connection to the power source.
The initial start-up process after reset has its own technical features that distinguish it from the usual wake-up from sleep mode. The main trigger to start is to apply voltage to the battery. Without this step, the screen can remain black and the vibration motor can not respond to touch. It is important to understand that the software reset not only zeroes user data, but also resets some state flags of the system, requiring re-initialization.
In this article, we will discuss in detail the algorithm of actions necessary for the successful activation of the tracker. We will consider the nuances of working with the charger, the features of pairing through the Mi Fit application (or Zepp Life) and diagnostic methods if the standard procedure does not work.
Preparation of equipment and checking the status of the battery
The first step before trying to turn on the Mi Band 4 is to provide a stable power source. Since the device may be in a deep discharge state after reset, it takes time to accumulate a minimum charge sufficient to start the operating system. Using cheap or damaged cables can lead to unstable current supply, which will cause a cyclical reboot or a complete lack of reaction of the tracker.
It is recommended to use the original charging dock, which comes with the kit, or a certified analogue with similar characteristics. Contacts on the back of the capsule and on the dock itself should be clean and dry. Oxidation or contamination can prevent current from passing, even if the cable is good. Wipe the contacts with dry soft cloth before installing the device.
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Use a smartphone power supply with a current of no more than 1 Amp. Powerful charging from laptops or fast charging can incorrectly detect a low-power device, which will lead to a failure in charging.
The charging process before turning on can take 15 to 30 minutes before the logo appears on the screen.At this time, the tracker can heat up slightly, which is a normal physical process for lithium polymer batteries when recovering capacity.Do not often try to remove the capsule from the dock for status check, as this resets the calibration process of the power controller.
Algorithm of primary screen activation and activation
Once you've made sure you're charged, you can go straight to activation. Unlike smartphones, the Mi Band 4 doesn't have a physical power button. All navigation and control is done through the touch button at the bottom of the screen. After a reset, it often requires a long press or a sequence of actions that depends on the firmware version.
The standard procedure involves mounting the capsule to charge. Once the device feels connected to the network, the screen should light up, displaying the battery icon or Mi logo. If this does not happen immediately, try to slightly press the touch button area while charging. Sometimes the system requires an external stimulus to exit deep sleep mode.
☑️ Verification of activation
In some cases, especially if the device has been in a long time, the screen may blink and go out again. This is a signal that the charge was only enough to start the bootloader, but not to fully load the interface. 10-15 Once the logo appears, the device will go into a pairing standby mode, as the image will indicate. QR-code.
Pairing with the Mi Fit app and setting up
Successful inclusion is only half the battle. To fully work, the Xiaomi Mi Band 4 needs to be linked to a user account. This uses the Mi Fit app (renamed Zepp Life in some regions), without this step, the tracker will remain in time mode and will not store activity or sleep data.
The pairing process requires activated Bluetooth on your smartphone. Open the app, log in to your account and go to profile. Press Add device and select Mi Band 4 from the list. The app will start searching for nearby devices. At this point, a pairing confirmation request may appear on the bracelet screen, which you need to confirm by touching the touch button.
It is important to note that during the initial setup, the tracker may automatically suggest updating the firmware. Updating firmware is a critical step, since older versions of the software may contain errors that cause unstable work after reset. Do not interrupt the update process and keep the smartphone next to the bracelet until it is completed.
Solving problems with vibration and response
One of the common problems after resetting is the lack of tactile response. The user presses the screen, but the Mi Band 4 does not vibrate or react. This can be due to software getting stuck of the vibration control module or mechanical damage to the motor itself.
For diagnostics, try to perform a forced reboot, so you can set the tracker on charge and hold the touch button for a while. 10-15 If the device is working, it has to vibrate and reboot. If there's no vibration even when you're connected to the charger, maybe the problem is the hardware.
⚠️ Attention: If after 30 minutes of charging and trying to reboot the screen remains black and there is no vibration, most likely the battery or power controller has failed.
It’s also worth checking the notification settings in the app. Sometimes after resetting and repairing, all notifications are turned off by default and the user thinks the bracelet is not working. Go to Profile → Mi Band 4 → Notification settings and make sure the switches are active.
Specificity of the touch screen after reset
The Mi Band 4 touch screen is capacitive and requires contact with skin or conductive material to activate. Once reset, the sensor sensitivity can be recalibrated. If the screen reacts with a delay or requires a strong press, this may indicate a need for calibration or the presence of a low-quality protective film.
The device interface has several menus available after activation: activity status, pulse, weather, settings and music. Navigation is done by swiping up, down, left and right. Swipe down opens the settings menu where you can find information about the software version and perform a reset (Unbind) if necessary.
| Action. | Interface response | Conditions required |
|---|---|---|
| Short touch | Activation of the screen / Going to the menu | The device is not in sleep mode. |
| Long press (3 seconds) | Starting a training regimen | Screen active. |
| Swipe up/down | Change of widget cards | Screen on. |
| Swipe left/right | Brightness setting/Pulse | Depends on the widget. |
If the sensor has stopped responding to swipes, but the time is displayed correctly, try to clean the back of the capsule of sweat or fat, as contamination can create a parasitic container that interferes with the sensor.
Problem diagnosis and resetting
If after all the manipulations Xiaomi Mi Band 4 behaves incorrectly (spontaneously shuts down, does not hold the charge, hangs on the logo), you may need to reset. However, this should only be done by making sure that the problem is not in the smartphone.
Reset is done through the menu of the bracelet itself or through the app. You need to find More → Unbind (or similar, depending on the firmware version) on the device menu. Confirmation of action will clean all data. This is useful if the first pairing was error-free.
Hidden Functions of the Developer Menu
You should also consider the battery life if the tracker is more 3-4 In this case, after reset and switching on, the device will work very short time or not turn on without charging. The charge-discharge cycle of lithium batteries is limited, and software cannot restore the capacity.