How to block the device Xiaomi: all ways to protect from outsiders

Protecting personal data on Xiaomi smartphones and smart devices is a critical aspect in the era of digital threats. Whether you want to prevent unauthorized access to private correspondence, banking apps or photos, locking your device properly reduces the risk of information leakage in 90% of cases. PIN-code without knowing there are more reliable mechanisms, from chip-level biometric authentication to remote blocking via Mi Cloud.

In this article, we will analyze not only the basic methods of blocking (pattern lock, password, fingerprint), but also advanced scenarios: what to do if the device was stolen, how to block Xiaomi through a computer, and why resetting to factory settings does not always save from hacking. Particular emphasis is placed on the model with MIUI 14/15 HyperOS devices, where the security algorithms have been redesigned.

1. Standard screen locking methods

The most obvious way to protect is to lock the screen. Xiaomi has 5 options, varying in security and convenience, depending on how critical the unlock speed is and what level of protection you need.

• 🔢 PIN-code: 4-16 digits. Quickly entered, but easily matched by observation.
• 🔑 Password: minimum 4 characters (letters, numbers, special characters) The most reliable, but slower than the others.
• 🎨 pattern lock: 4-9 dot pattern, convenient but leaves marks on the screen.
• 👆 Fingerprint: only works on sensor models (e.g. Redmi Note 12 Pro)+, Xiaomi 14).
• 👁️ Facial recognition: available on flagships (e.g. Xiaomi 13 Ultra) less reliable than a print.

To set up the lock:

1. Go to Settings → Passwords and Security → Screen Lock.
2. Select the type of lock and follow the instructions.
3. For biometrics: Add a fingerprint or face to Settings → Passwords and security → Fingerprint/Face data.

⚠️ Note: If you use a pattern lock, avoid simple patterns (e.g., "Z letters" or "square"). Attackers know the standard combinations and pick them up in 10-15 attempts.

2. Two-factor authentication (2FA) in Mi Account

Even if an attacker learns the password from your Mi Account, two-factor authentication (2FA) will not allow them to access the device or data, a method that is mandatory for Xiaomi owners, as it is tied to cloud services (Mi Cloud, Xiaomi Home) and remote blocking functions.

How to turn on 2FA:

1. Open the Mi Account page in your browser.
2. Go to Security. → Two-factor authentication.
3. Confirm your phone number or email to receive the codes.
4. Save your backup codes in a safe place (e.g., Google Keep or on paper).

Once 2FA is activated, each time you log in from a new device, you will need to enter code from an SMS or an authenticator application (Google Authenticator, Authy) to protect against:

• 🕵️‍♂️ Hacking an account through phishing.
• 📱 Unauthorized Device Reset via Find Device.
• 🔄 Switching SIM-Cards (if the phone number is linked).

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If you lose access to the phone number associated with the Mi Account, immediately add a backup email. Without this, it will be extremely difficult to restore an account - Xiaomi support requires a scan of documents.

3.Remote lock through Find Device

If a Xiaomi device is stolen or lost, Find Device (similar to Find iPhone) allows you to remotely lock the gadget, even if it is turned off.

1. The device must be linked to the Mi Account.
2. Settings included in the settings option → Mi Account → Find Device.
3. The device is active mobile Internet or Wi-Fi.

Instructions for locking:

1. Go to the Find Device page.
2. Sign in to your Mi Account.
3. Select the lost device from the list.
4. Click Lock the device and set a new password.

After the lockdown:

• 🔒 The screen is unlocked only with the password you entered.
• 📍 The device coordinates will be updated when connected to the network.
• 📴 An attacker will not be able to reset settings without your Mi Account password.

⚠️ Note: On HyperOS devices (e.g. Xiaomi 14, Redmi) K70) Find Device functions differently: it requires confirmation through the SMS or 2FA. Without this, an attacker can bypass the protection through Fastboot mode.

4. Blocking through ADB (for advanced users)

If standard methods are not suitable (for example, the sensor does not work and lock is not installed), you can lock the device through ADB (Android Debug Bridge), this method requires pre-configuring debugging over USB and is suitable for models on MIUI or HyperOS.

Steps to lock:

1. Connect your device to your PC and enable USB Debugging in Settings → About Phone → MIUI Version (click 7 times) → Additional settings → For developers.
2. Install Android SDK Platform-Tools.
3. Open the command line and type in: adb shell dpm set-device-owner com.xiaomi.finddevice/.receivers.AdminReceiver
4. Set the password through ADB: adb shell am start -a android.settings.SET_NEW_PASSWORD

Limitations of the method:

• ⚠️ It only works if the debugging is done. USB was turned on before the device was lost.
• ⚠️ In some models (for example, POCO F5) rooting.
• ⚠️ After blocking through ADB You may need to reset your settings.

5. Protection against resetting (FRP Lock)

Factory Reset Protection (FRP) is a mechanism that locks a device after being reset to factory settings if it was tied to Mi Account. Starting with MIUI 12, FRP is activated automatically when you add a Xiaomi account, which means that even after a hard reset, an attacker will not be able to use the device without your data.

How does FRP work on Xiaomi:

To check the status of FRP:

1. Go to Settings. → Mi Account.
2. Make sure that the device is linked to your account.
3. Try resetting via Settings → About Phone → Resetting – after the reboot, the Mi Account data entry window should appear.

⚠️ Note: On devices with an unlocked bootloader (bootloader) FRP To avoid this, never unlock the bootloader unnecessarily (for example, to install). TWRP).

6.Blocking Xiaomi smart devices (Mi Band, smartwatches, routers)

In addition to smartphones, Xiaomi releases smartwatches (Mi Band 8, Watch 2 Pro), routers (Xiaomi Router AX6000) and other equipment that can also be blocked from outsiders.

For wearable devices (Mi Band, Xiaomi Watch):

• 🔐 Install. PIN-code in the Mi Fitness or Xiaomi Wear app (device profile) → Security).
• 📱 Link the device to Mi Account – this will allow you to remotely reset data when you lose.
• 🚫 Turn off notifications on the lock screen (in the clock settings).

For Xiaomi routers:

• 🔒 Change the standard administrator password (admin/password) complex.
• 🌐 Disable remote access to Settings → System system → Remote control.
• 🔄 Include DDoS protection in Settings → Security.

For smart speakers (Xiaomi Smart Speaker):

• 🎤 Turn off voice control without authorization in Mi Home.
• 🔊 Set a password to connect over Bluetooth.

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Xiaomi smart devices are often ignored from a security perspective, but they store just as much data, from location history (in hours) to Wi-Fi passwords (in routers).

7 What to do if the device has already been stolen

If your Xiaomi is stolen, follow the algorithm:

1. Lock your device immediately through Find Device (see Section 3).
2. Change passwords from Mi Account, email, banking applications and social networks.
3. Contact the police with the IMEI device (you can find it through the box or Mi Account).
4. Delete data remotely (if the device is connected to the network) via Find Device → Erase data.
5. Check activity in Mi Cloud (Device section) – it is possible that an attacker is trying to log in to your account.

If the device is switched off:

• 📴 Find Device will reveal the last known location.
• 🔍 Enable Notify when connecting to the network in the Find Device settings.
• 📱 On models with HyperOS (for example, Xiaomi 14) works function Offline Finding – the device can be found even without the Internet through the Bluetooth network of other users Xiaomi.

⚠️ Warning: Don't try to track the device yourself - it's dangerous. IMEI and location data to law enforcement agencies.

FAQ: Frequent questions about Xiaomi blocking