Xiaomi Mi Band 4: How to turn off the device and reboot

Owners of popular fitness trackers often face a situation where the standard menu doesn't offer an obvious button to completely shut down power.The Xiaomi Mi Band 4 was no exception to this rule, causing bewilderment among new users.The manufacturer deliberately removed the full shutdown feature from the main interface to extend battery life and prevent the gadget from accidentally shutting down.

But it can happen when you crash, freeze, or store your device for a long time, and unlike smartphones, there's no classic "Finishing Work" menu, but there are proven methods to get the desired result, and we'll look at all the options available, from software reboot to full battery life.

Understanding the MIUI for Watch architecture will help you manage your device properly. It is important to distinguish between the concepts of “screen goes out”, “device sleeps” and “complete shutdown”. In the following sections, we will explore the technical details and provide step-by-step algorithms for different scenarios of using your bracelet.

Why there is no switch off button on the menu

Many users, trying to figure out how to turn off the Xiaomi Mi Band 4, are flipping through the settings in vain. It's not a firmware bug, it's a clever engineering concept. Smart bracelets are designed to work 24/7, constantly tracking pulse, steps and notifications. Complete shutdown contradicts the basic idea of wearable electronics.

In addition, frequent on and off cycles can adversely affect the power controller and the status of the lithium polymer battery.The system is designed to consume minimal energy in standby mode.The screen goes out after a few seconds of inactivity, but the processor continues to work in the background, waiting for a signal from the sensor or smartphone.

⚠️ Warning: Attempts to find hidden engineering menus to turn off power unnecessarily can lead to unstable firmware operation.Use only the standard methods described in the official documentation.

The absence of the “Switch off” button also protects against the situation when the user accidentally turns off the tracker and forgets about it, and then wonders why notifications do not come. The only regular way to completely shut down is a deep battery discharge or a special debugging mode that is not available to everyone.

Soft reboot via tracker settings

If your Mi Band 4 is not working properly, is stuck or has stopped responding to touch, the first step is to softly reboot, a process similar to restarting your smartphone and does not result in data loss. To perform this operation, you will need access to the main menu of the device.

Swipe your finger across the screen to the left or right until you find the gear icon (“Settings”). In this section, you need to find the “System” or “About System” item, where management functions usually hide. However, in standard firmware, the reboot button may not be available, and then you will have to look for alternative ways.

• 🔄 Swipe up from the bottom edge of the screen to open the Quick Access panel, and check for the Reboot option».
• ⚙️ Go to Settings. → System system → Restart if such item is available in your firmware version.
• 📱 Make sure the battery is over 15% or the system may block the restart.

In some regions and firmware versions, the reboot point is hidden or removed. If you don't find it by standard methods, don't panic. There are other ways to resuscitate the device, which we'll discuss below. The main thing is not to use physical force on the housing.

Forced reboot through charging

One of the most effective ways to "wake up" or reboot the tracker is to connect to a power source.The Xiaomi Mi Band 4 features a special controller that responds to voltage on contacts.This action often initiates a system reset, similar to pulling out the battery in older phones.

To perform this procedure, you will need an original charging cable. Remove the tracker capsule from the strap, if installed, and connect the contacts to the USB-The device should vibrate and show charging animations. If the screen doesn't catch fire, try changing the angle of connection slightly or erasing the contacts.

Often, it's the moment you connect to charge that causes the frozen processor to restart the operating system kernel, and if the screen catches fire after you connect it and the Mi logo, it's a success, and if the device continues to hang on the screensaver, you can repeat the procedure by turning off and reconnecting the cable in 5-10 seconds.

Reset to factory settings (Hard Reset)

In cases where software failures are critical and a normal reboot doesn't help, a complete reset is required. Hard Reset will return the Xiaomi Mi Band 4 to the "out of the box" state by removing all the accumulated data, dial settings and pairings. This is a radical measure, but often the only possible one.

You can reset in two ways: through the Mi Fit app (or Zepp), or through the tracker menu itself, if available. The app needs to go to the device profile, scroll down and select Untie or Reset, and the tracker will request confirmation, after which it will clear the memory.

Once reset, the device will need to be re-coupled with the smartphone. All historical training and sleep data, if synchronized with Xiaomi servers, will remain in your account. Local settings, such as screen brightness, time to fade and the selected dial, will be reset to standard.

Full battery discharge method

If the tracker is dead, the screen is dead, the buttons are not reacting, and the charging connection does not cause any reaction, there is the last hardware-software method. Full discharge is a way that is guaranteed to turn off any electronic device, because without energy it can not function.

To implement this method, leave the bracelet alone. Don't plug it into charging, use it actively (if the screen reacts) to speed up the process, or just wait. When the lithium polymer battery charge drops below a critical threshold, the power controller will force the device to shut down.

⚠️ Attention: Deep discharge is bad for modern batteries, and it is not recommended to use this method regularly, only in emergency cases when other methods do not work.

Once the tracker is completely discharged and turned off, put it on charge. When turned on after a deep discharge, the Mi Band 4 often automatically performs self-checking and can eliminate file system errors that caused the freeze.

Use of engineering mode (for advanced)

There's a more sophisticated way to turn off and control the device, which involves logging into an engineering menu, which usually requires a special charging dock with pogo pin contacts and connecting to the computer via an adapter, a method used by developers and repairers.

With special software, you can send a shutdown command directly to the system, but for the average user, this is redundant and dangerous, and improper actions on the engineering menu can brick the device, making it unusable without being flashed by the programmer.

• 🔌 Requires an adapter for charging with open contacts.
• 💻 Specialized software is needed for debugging (ADB-utility-like BLE).
• ⚠️ High risk of warranty breach and firmware damage.

We strongly recommend not using this method unless you have experience in flashing microcontrollers, and the standard methods described above are enough to solve 99% of the problems with the Xiaomi Mi Band 4.

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To extend the life of the Mi Band 4 battery, turn off constant pulse monitoring (leave periodic) and reduce the brightness of the screen to 30-40%.

Frequent problems and their solution

Even after a successful reboot, users may experience residual effects, such as a wristband that can quickly discharge or lose communication with a smartphone, suggesting that the problem may not have been in the device itself, but in a conflict of software versions or Bluetooth module of the phone.

If the Mi Band 4 continues to behave strangely after turning it off and on, try removing the Mi Fit/Zepp app from your phone, clearing the Bluetooth cache in the Android/iOS settings, and creating pairing again. Often, the “junk” in the Bluetooth cache causes false commands.

Also worth checking is the firmware version. Go to the app and check for updates. Developers regularly release patches that fix power and stability errors. The current version of the software is the key to the correct operation of all functions of the tracker.

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In most cases, the Mi Band 4 freezes by simply rebooting through a charger connection or waiting for the battery to run out completely.