How to remove the activation service Xiaomi SIM: the complete guide

When you reset or buy a used smartphone, the screen says, "This device is locked to Xiaomi account," causing panic among many users, a standard anti-theft mechanism known as Mi Cloud Lock that binds the device to the first owner's account, but often the lock is due to activation errors, server problems, or the purchase of a device that was previously listed in the corporate pool.

Removing the SIM activation service or completely bypassing the account binding requires understanding the MIUI and HyperOS security architecture. Simply extracting the card or flashing it without preparation in modern versions of the software does not help, since the lock status is stored on the server side and checked when you first connect to the network. You need to clearly define the type of lock to choose the right method of solution.

In this guide, we will discuss legal and technically complex ways to unlock, explain the difference between Mi Account and IMEI lock, and provide diagnostic tools. Remember that any manipulation of the software carries risks, and the responsibility for the safety of data lies with the user.

⚠️ Warning: Attempting to bypass a lock on a stolen device is illegal and this guide is intended solely to restore access to personal gadgets, forgotten passwords, or to resolve technical activation errors.

The Nature of Xiaomi Activation Blocking

The security mechanism, which users often refer to as the “SIM activation service,” is actually part of the Mi Account ecosystem. When you log in to your device and turn on the Find Device feature, your smartphone gets a unique anchor token. Even a full reset via Recovery (Wipe Data) doesn’t remove this anchorage, because it’s checked by the server when you boot the system.

Users often confuse account blocking with activation problems. SIM-If the phone requires you to enter an unlock code SIM (PUK), But if the screen requires a username and password from Xiaomi or shows the status of "Device Locked", it is specifically about protection against theft. SIM-map.

There are several levels of protection that can interfere with normal operation:

• 🔒 Mi Account Lock – a complete locking device that requires a password from the account to which the phone is linked.
• 📡 Network Lock – blocking the work with SIM-cards of certain operators (often found on devices from Japan or the United States).
• 🏢 Enterprise Device – Enterprise lock when a device is controlled through a MDM-server.

Understanding the type of lock is the first step to success. If you bought a phone off the hands and encountered an activation screen, chances are the previous owner didn't untie the device remotely, in which case the only right way is to contact the seller to unlock the lock via i.mi.com.

Official methods of unlocking the device

The most reliable and secure way to remove the activation service is to use the official tools of the company. If the device belongs to you but you do not remember the password, the recovery procedure will take time, but will guarantee the result without losing the functionality of the communication modules.

If you lose access to your phone number or mail, you'll have to go through a verification process, you'll need to provide a check for your device that contains the IMEI and serial number, and without these documents, support staff will not be able to unplug the lock because it violates security policy, and the application process is as follows:

1. Go to account.xiaomi.com and select Forgot Password.
2. Enter your phone number or email if you remember them.
3. If access is not possible, find a feedback form to unlock the device.
4. Upload a photo of the check and the box with the IMEI sticker.

⚠️ Warning: Fake checks or photoshop documents will lead to a permanent ban of the device on the Internet IMEI. Use only original documents obtained during the purchase.

There is also a service Xiaomi Unlock Tool, but it is designed to unlock the bootloader, not to remove the Mi Account Lock. However, unlocked bootloader is often a prerequisite for the application of more complex recovery methods, which will be discussed below. To use the official tool, you will have to wait 7 days (168 hours) after linking the account to the device.

Preparation for the procedure of bypassing the lock

Before you start technical methods to remove activation services, you need to prepare the workplace and software. Unpreparedness is the main cause of errors, such as bootloop (cyclic reboot) or complete failure of the communication module. Make sure that the battery charge of the device is at least 60%.

You'll need a computer with Windows, because most of the drivers and utilities are sharpened for this platform. USB-cable, preferably original, to ensure a stable connection during data transmission.

The following components will be needed for the work:

• 💻 ADB & Fastboot Tools – a set of utilities for interacting with Android at a low level.
• 🔌 Qualcomm Drivers or MediaTek Drivers – depending on your smartphone’s processor.
• 📱 Xiaomi USB Driver – the official driver package for the correct definition of the device in the task manager.

It's important to understand what processor your gadget is running on. The methods for Snapdragon and MediaTek can be very different. You can define the platform by the device model on the GSMArena website or in the box specification. For example, the Redmi Note 10 can be released in versions on different chipsets, and there is no universal "magic button."

Methods of bypassing through ADB and Fastboot

One common way to remove intrusive activation services is to use the ADB command line. This method works if you have access to the Recovery menu or system, but the blocker prevents full operation.

First, you need to enable USB debugging. If the menu is available, go to Settings → About Phone and press 7 times on the build number to activate the developer menu. Then activate the USB debugging option on the menu that appears. Connect the phone to your PC and type in the command:

adb devices

If the device is identified, you can delete the Mi Account components. However, on modern versions of Android (10, 11, 12 and above), the system partition is protected, and simply deleting com.xiaomi.account files may not work without superuser rights (Root).

adb shell pm disable-user --user 0 com.xiaomi.joyose


adb shell pm disable-user --user 0 com.miui.cloudservice




adb shell pm disable-user --user 0 com.xiaomi.finddevice

The Fastboot method is used for deeper intervention. By putting the device into Fastboot mode (clamping the volume down button when turned on), you can flash a modified bootloader image or use special scripts to reset the lock flag. However, starting with MIUI 12, this port is closed, and server verification blocks the entry even with the bootloader unlocked, if the "Find Device" status is active.

Use of specialized software

When standard methods fail, specialized software developed by enthusiasts and service centers, such as Mi Unlocker, XiaomiADB, or paid service tools (such as Chimera, UnlockTool), allows you to interact with protected areas of memory, and they often exploit vulnerabilities in processor boot protocols.

Most effective tools are paid and require a license, because developers are constantly updating databases and exploits. Free versions that can be found in the public domain often contain viruses or are simply "fakes." If you decide to use such software, be sure to check the files with antivirus and use a virtual machine.

Comparison of popular methods and their effectiveness:

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When using paid software to unlock always do a backup NV-section (NVRAM). This section stores modem calibration data, IMEI and MAC-Losing this partition will cause the phone to stop seeing the network, and it will restore the network. IMEI It's very difficult.

Importantly, some programs offer the "Bypass Mi Account" feature, which is not a complete deletion, but bypassing the activation screen. After this intervention, the phone may work, but the Find Device, Mi Cloud and synchronization functions will not work, and when you reset the settings, the lock will return.

Problems with Chinese versions of firmware

A separate category of problems is related to devices imported from China. CN ROM, which may require activation through Chinese SIM-card or have pre-installed services that block work in other regions, often sellers on marketplaces reflash such phones on Global. ROM, but do it with the boot loader closed, which leads to activation errors.

If you are confronted with a message that the device is locked for use in another region, you will most likely need to flash it back. However, if the bootloader is closed, official flashing is not possible. You have to use emergency mode (EDL Mode) methods.

The process of flashing through EDL:

• 🔧 Disassemble the phone and find Test Point contacts for your model.
• 🔌 Close the contacts and connect USB PC (device will be defined as Qualcomm) HS-USB QDLoader 9008).
• 💾 Start a software program (for example, QFIL or XiaomiFlash).
• 🚀 Download the firmware file (Fastboot) ROM) start the process.

⚠️ Attention: Firmware through EDL-The mode on new Xiaomi models requires an authorized service-level account. A regular user will not be able to flash the phone using this method without using paid services of remote firmware.

Also worth mentioning is the “double activation” problem, which some Chinese firmware has a hidden partition that, when upgraded or reset, returns the phone to the factory Chinese settings, and to avoid this, you need to completely clean the cust and overlay partitions before installing the global firmware, which again requires an unlocked bootloader.

Account prevention and security

To avoid having to remove activation services in the future, it is important to properly configure your device immediately after purchase. First of all, register your Mi Account and link a reliable phone number and email to it. Do not use temporary or other people's numbers to register.

The second important step is to save checks and documents, and digital copies of checks are better stored in the cloud, and if they are blocked or stolen, these documents will be the key to regain access, and regularly check the list of associated devices in your account security settings, and delete those that you no longer use.

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Xiaomi’s top security rule is: never buy a used device if the seller can’t get out of his Mi Account with you and perform a full reset. Buying a “locked” phone is a risk of getting a brick.

Use two-factor authentication. This will protect your account from being hacked. If an attacker gains access to your Mi Account, they can remotely lock your device, and then you will have to go through the circles of hell with proof of ownership. Be vigilant and do not follow suspicious links, allegedly on behalf of Xiaomi support.