Modern fitness trackers, such as the Xiaomi Mi Band 4, are complex electronic devices that require periodic maintenance. In the process of operation, users may face situations when the gadget stops responding to touch, loses connection to the smartphone or incorrectly displays data on pulse and steps. In such cases, a standard shutdown does not always help, and more radical intervention is required - a complete reset or a hard reboot of the system.
Understanding how to reset the tracker correctly is a key skill for any wearable electronics owner, which eliminates software failures, clears the cache of temporary files and restores the normal operation of all sensors. It is important to distinguish between a conventional reboot that only updates RAM and a full reset that returns the device to factory parameters.
In this article, we will take a detailed look at all the methods available to resuscitate your bracelet, learn how to safely perform the procedure without risking damage to the firmware, and also understand the typical errors that occur in the process. The right approach to maintenance of the Mi Band 4 will prolong the battery life and ensure the stability of all functions.
⚠️ Warning: Before performing any reset actions, make sure that the battery level of the tracker is at least 20-30%. Interrupting the upgrade or reset process due to battery discharge can cause permanent damage to the software.
When a fitness tracker is needed
There are a number of specific symptoms that indicate that you need to interfere with your system, and if your fitness bracelet starts to behave inappropriately, ignore commands or arbitrarily reboot, that's the first signal to action, and often the problems are internal memory overflows or synchronization conflicts.
One common reason is that data is desynchronized between the Mi Fit (or Zepp) application and the device itself, in which case the tracker may show the wrong time, not display notifications, or stop counting steps.
The reset is also necessary when transferring the device to another user or before selling it, ensuring that your personal data, training history and biometrics are completely deleted, without which the new owner will have access to your sensitive information.
- 🔄 The tracker hovers on the logo or black screen and does not respond to touches.
- 📉 A sharp drop in autonomy without apparent causes and background processes.
- 🔗 Unable to connect to a smartphone via Bluetooth after previous successful attempts.
- 📊 Errors in displaying data from sensors (pulse, steps, sleep).
Preparation of the device for the discharge procedure
Before you start taking action, you need to perform a number of preparatory activities, this minimizes the risk of losing important data and ensures the stability of the process, first of all, you should back up all the accumulated data about your activity.
Open the Mi Fit or Zepp app on your smartphone and wait for full sync. Make sure all workouts recorded on the bracelet are transferred to the cloud or phone memory. Only after confirming successful data retention can you move on to the next step.
It is also important to check for firmware updates. Sometimes the problem you are trying to solve with a reset has already been fixed by the developers in the new version of the software. If an update is available, you should install it first and then reset it if necessary.
☑️ Preparation for discharge
Method 1: Reset via Mi Fit (Zepp)
The safest and most recommended way to return the tracker to factory settings is to use official software, which allows you to perform a software reset without physically affecting the contacts of the device, which reduces the risk of mechanical damage.
To start, open the app on your smartphone and go to your device profile. In the list of available options, you need to find the item responsible for managing the device. The interface may vary slightly depending on the version of the application, but the logic remains the same.
Once the appropriate item is selected, the system will request a confirmation of the action, which is a security mechanism that prevents accidental deletion of data, and after confirmation, the cleaning process will begin, which will take a few seconds, after which the bracelet will restart.
| Action. | The path to the menu (Mi Fit) | The path to the menu (Zepp) | The result |
|---|---|---|---|
| Uncoupling | Profile → Mi Band 4 → Unbind | Profile → Mi Band 4 → Unbind | Communications break, data retained |
| Resetting settings | Profile → Mi Band 4 → Factory Reset | Profile → Mi Band 4 → Factory Reset | Complete data cleanup |
| Reboot. | Profile → Mi Band 4 → Reboot | Profile → Mi Band 4 → Reboot | No data loss |
| Deletion of the device | Bluetooth phone settings | Not recommended | Only a break in the connection. |
Factory Reset may not be available in some older versions of the app, so you need to upgrade to the latest version through the Google Play or App Store, and if you don’t have the option, you’ll need to use alternative methods.
What happens to the data when you uncouple?
Method 2: Hardware discharge through charger
In situations where software methods are not available or the bracelet does not respond to commands, the hardware method is used, which requires the original charger and power source, which is often called "hard" reset, because it affects the power level of the controller.
The method is to interrupt the charging process at a certain point, which causes the system to initiate an emergency reboot, which can help to get out of a “bootloop” state (cyclic reboot) or deep sleep from which the device cannot escape on its own.
You'll need to connect the tracker to the charger, wait for the charging indicator to appear, and then quickly disconnect and reconnect the capsule several times, which simulates a voltage surge that some firmware versions interpret as a reset command.
⚠️ Warning: Do not use damaged cables or powerful car charges to carry out this procedure.Unstable voltage can damage the Mi Band 4 power controller, which will cause the device to fail completely.
If after a series of connections, the Mi logo or reset menu appears on the screen (depending on the software version), then the method worked. Follow the instructions on the screen for confirmation. If there is no reaction, perhaps the problem lies in the hardware, for example, in the oxidation of contacts.
- ⚡ Connect the tracker to USB-port of the computer or weak charging (5V 1A).
- 🔌 Wait for the battery icon or logo to appear.
- 🔁 Quickly disconnect and connect the capsule 3-5 successively.
- 👀 Watch the screen reaction: the appearance of a menu or logo is a success.
💡
If the contacts on the tracker are oxidized, gently wipe them with a cotton swab dipped in alcohol.This will improve contact with the charger and can solve the charging problem without a complex reset.
Method 3: Complete Discharge (Deep Discharge)
The most radical, but often effective, way to bring freezers back to life is to completely drain the battery, which is a process that allows you to reset static electricity and reset the state of the power controller, a process that takes time and patience, but in difficult cases, it is the only way out.
The idea is to leave the tracker on until the battery runs out and the device is turned off, and then leave it lying still for another 2-3 days, so that the residual charge in the capacitors is completely dissipated.
After the "traveling" time, put the device on charge. When turned on after a deep discharge, many Xiaomi models automatically initiate a system check and reset to factory settings, this is the normal response of the controller to a critically low voltage level.
It is important to understand that frequent use of the deep discharge method is harmful to lithium polymer batteries. This can lead to lower capacity and shorten the overall battery life. Use this method only as a last resort when other options are exhausted.
💡
Full discharge is the "heavy artillery" in the electronic world. It helps to reset controller errors, but it negatively affects battery life, so only use the method in desperate situations.
Resolving problems after resetting
Once the reset procedure is successfully performed, the user may encounter a number of typical situations that are not a breakdown, and understanding these nuances will help avoid unnecessary panic and properly configure the device again.
First of all, the bracelet can search for a phone for a long time or not see the app. This is normal, since all the encryption keys have been deleted. You will need to re-pair through Bluetooth, as if you are using a new device.
Also, consider that after resetting all alarm settings, step goals and notifications will be reset to default values. You will have to manually reset Settings → Notifications and activity targets in the application.
If the problem persists after resetting and reconnecting, it may indicate a deeper malfunction, possibly a damaged Bluetooth module or a need to flash the device through special engineering utilities, which requires a skilled approach.
- 📱 Remove the old device from the Bluetooth list in your phone settings.
- 🗑️ In annex Mi Fit/Zepp Remove your account or device from the list.
- 🔄 Search for new devices and select Mi Band 4.
- ✅ Confirm the pairing by pressing the vibrating capsule.
⚠️ Warning: Do not try to connect the tracker to the phone while the initial setup process is underway on the bracelet screen. QR-code or request to open the application, otherwise the pairing may be incorrect.