How to Refuse Xiaomi Mi Band 4: The Complete Guide

Fitness bracelet owners often face a situation where a device purchased on popular Chinese venues is not synchronized with an app or has an interface in an unfamiliar language. Xiaomi Mi Band 4 is a popular model that has a clear separation into Chinese (CN) and global (Global) versions. If you purchased a tracker marked CN, but want to use it with a Russian-language interface, you will need a flashing procedure.

The software update process not only changes the language of the menu, but also fixes software errors that may have occurred during operation. It is important to understand that firmware is not just a change of image, but a replacement of the internal code of the device, so before you start any manipulations, you need to carefully study the requirements and prepare the smartphone for operation.

In this article, we will break down the nuances of transitioning from one region to another using the official Mi Fit app (now renamed Zepp Life).You will learn how to avoid common mistakes such as data loss or bricking your gadget. Following the instructions will allow you to fully use all the functions of your activity tracker.

Differences between Mi Band 4 firmware versions

The first step to a successful upgrade is understanding what is installed on your device now. The Chinese version of the bracelet is originally designed to work with servers in China and often has a reduced functionality when connecting to global accounts. Global firmware provides full compatibility with all the functions of the application, including notifications, weather and accurate interface translation.

Visually, you can distinguish the versions by the start screen when turned on. The Chinese version greets the user with the Amazfit logo and the inscription in Chinese or English without a flag. The global version at launch shows the MI logo and often accompanied by the flag of the corresponding region.

Technically, the differences are rooted in the region IDs embedded in firmware. Trying to update the Chinese version through a global account without prior preparation often results in a synchronization error.

Below is a table that will help you quickly identify the current state of your gadget:

Understanding these differences is critical, because the flashing method depends on which region is currently active on the bracelet, and if you try to apply the method to the global version on the Chinese bracelet, the process simply won't start.

Preparation of a smartphone and Mi Account

Before you start taking action, you need to set up the software environment correctly. The main tool for working with Xiaomi trackers is the Mi Fit app (or its analogue Zepp Life). Make sure you have the latest available version of the application installed from the official Google Play store or App Store.

The key is the region of your account, and to flash the Chinese version to the global version, you'll probably need to create an account in China, which is necessary for the initial link and access to the update servers, and after you change the firmware, you can return to your main account.

⚠️ Warning: Do not try to reflash the device if the battery charge of the bracelet is below 50%. Interrupting the process of writing data due to discharge can lead to complete inoperability of the gadget, which cannot be fixed at home.

It’s also worth checking your smartphone’s Bluetooth settings, sometimes cached data about old connections can interfere with the correct operation, and it’s recommended to remove the device from the list of paired phone settings, but not remove it from the app itself.

• 📱 Install the latest Mi Fit/Zepp Life app.
• 🌏 Register an additional account with the “China” region (if you reflash the list). CN version).
• 🔋 Charge the bracelet to minimum. 50-60%.
• 📶 Turn it on. GPS Bluetooth on a smartphone for a stable connection.

Internet connection stability also plays a role, as firmware files can weigh several megabytes, and using Wi-Fi is preferable to mobile Internet to avoid download breaks.

Transition of the region through Mi Fit

The safest and most official way to change the software version is to change the region in the application settings, which does not require a computer connection or use third-party utilities.

First, you need to link the bracelet to an account in China, and if the bracelet is already linked to your main account, you need to untie it. To do this, go to the device profile, scroll down and select Unpair. Then add the device again by logging in to the selected region "China".

Once paired successfully, the app will find that the account and firmware region (if global but Chinese or vice versa) are not the same, or offer a standard update.

In some cases, especially when you switch from CN to Global, the app may not see the update automatically, and then you use the "dancing with a diamond" method: you put the region of the China account, tie the bracelet, then change the account region to Russia (or your main one) in your profile and re-search the device.

It's important not to interrupt the process when the progress bar appears on the bracelet screen, and at that point, new data is recorded in the microcontroller memory, and any interference can disrupt the integrity of the bootloader.

Solving Update and Error Problems

Even if all instructions are followed, users may encounter errors, and it is common for progress bars to stall by 1% or 99%, which may indicate an unstable Bluetooth connection or a conflict of application versions.

If the update is stuck, don't panic right away. Wait 5-10 minutes. If there's no change, try restarting your smartphone and bracelet (via the device menu). After restarting, reboot the app and try to re-start the update.

⚠️ Warning: If the bracelet shows the Mi or Amazfit logo and no longer responds to presses (brick mode), put it on charge. Often the device automatically enters recovery mode and tries to roll back to the factory version.

Another common problem is the "failed to update" error, which often happens when the phone is on. VPN, which blocks the connection to Xiaomi servers, or vice versa, if the provider blocks access to the necessary ports. VPN Or, conversely, switch it to a new country.

It’s also worth clearing the Mi Fit app cache. Go to Settings → Apps → Mi Fit → Memory → Clear the cache. This action is safe for your data, as it’s stored on the server, but can eliminate software conflicts.

Use of third-party utilities and modifications

For advanced users who lack the functionality of standard firmware, there are modified versions of the software. Projects such as AmazTools (previously known solutions) or various firmware forks allow you to install second-hand dials, change fonts and add new features.

Installing custom firmware requires more care, and firmware files are.bin extensions and downloaded through special functions in modified versions of applications or through debugging, and it's not just a region change, but a full-fledged intervention in the device system.

If you do, look for firmware files only in trusted forums such as 4PDA or XDA Developers. Always read other users' comments before downloading the file. Make sure that firmware is designed for the Mi Band 4, not the 3rd or 5th model, as they are physically similar but software incompatible.

The custom firmware installation process often looks like a regular update, but the file is manually selected from the phone's memory. The bootloader app will check the checksum and start recording, and it's critical that the phone doesn't go into sleep mode and lose touch with the bracelet.

Recovery of the bracelet after a failed firmware

What if the experiments failed and the bracelet stopped turning on? In most cases, the Mi Band 4 is helped by the method of "charging treatment." Leave the device wirelessly charged or connect to the device. USB-port of the computer for several hours.

Often, the bracelet itself “understands” that the bootloader is damaged and goes into DFU mode (Device Firmware Update), in which it can be seen by the computer as an external device or identified in Windows Device Manager. However, Xiaomi does not have standard USB firmware tools, everything is done via Bluetooth.

If the bracelet is visible in the application but constantly gives an error, try to perform a full reset.In the bracelet menu, find the Settings item → System → Reset (Settings) → System system → If the menu is not available, you can try to find the decoupling function in the application that initiates the reset.

• 🔌 Leave the bracelet on the charger 2-3 idle.
• 📱 Try to tie the device to another smartphone with a clean installation of Mi Fit.
• 🔄 Use the “Find Device” function in the app, sometimes it wakes up the communication module.
• ❄️ Allow the device to completely discharge to zero, and then charge to 100%.

In the rare cases where software methods don't help, hardware reset is required, but for the Mi Band 4, which has no external contacts to program (they are hidden under the screen), this is almost impossible to do without damaging the body.

Frequently Asked Questions (FAQ)

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The main conclusion: Flashing the Mi Band 4 is a safe procedure, as long as you follow the instructions for changing the region in the application and do not interrupt the process of writing data.