The modern smartphone contains a huge amount of confidential information, from banking applications to personal correspondence and photos. Owners of devices based on MIUI often wonder how to protect their gadget from outside interference. Setting a reliable barrier is the first and most important step in digital hygiene, which can not be ignored even when using a phone exclusively at home.
The Xiaomi and Redmi shell security installation procedure is unified, but has its own nuances, depending on the Android version and interface modification. Competent setting allows you not only to lock the screen, but also to hide individual applications or files from prying eyes. In this article, we will discuss all available methods of access encryption so that you can choose the optimal level of security for your use case.
It is worth noting that the choice of locking method directly affects the speed of unlocking and usability. The pattern lock is more familiar to many users who have switched from button phones, while the digital pin code provides higher password entropy. Biometric data such as fingerprint or facial recognition are convenient additions, but can not completely replace the main method of authorization in critical situations.
Choosing the optimal type of screen lock
The first step in setting up is to determine the type of lock that the system will request each time the screen is turned on. The MIUI security system offers several options, each with its own advantages and disadvantages in terms of speed and reliability. The choice of the specific method depends on how important the data stored in the device's memory is and how often you plan to unlock the gadget.
The most common option is a pattern lock, which is a 3x3 grid connection, which is a visually simple way that is easy to remember with your hand’s muscle memory, but research shows that users often choose predictable patterns such as letters or simple geometric shapes, which significantly reduces the crypto-resistance of protection.
A more secure option is a digital password or a complex combination of characters. Using a long password with numbers and letters makes brute-force combinations almost impossible for an attacker. If you store sensitive financial documents or access to corporate resources on your phone, it is recommended to use this type of lock, despite the fact that entering takes a couple of seconds longer.
It is important to note that this method will be the main way to log in after a device is restarted or if biometric sensors fail. The system may require you to enter your primary password if more than 72 hours have passed since the last successful unlock, so it is crucial to choose a combination that you will definitely not forget in a stressful situation.
Step-by-step instructions for setting a password in MIUI
The activation process in Xiaomi and Redmi smartphones is standardized and takes no more than one minute. First, you need to get to the main settings menu, where all the device management tools are located. The interface may vary slightly depending on the regional firmware (Global, China, EEA), but the logic of actions remains the same for all versions of the MIUI shell and HyperOS.
Follow the algorithm described below to activate a password request when you turn on the screen:
- 📱 Open the Settings app and find the Passwords and Security section».
- 🔒 Click on “Device Protection” or “Screen Lock».
- 🔢 Select the preferred type of lock: pattern lock, PIN-code.
- ✅ Enter the selected combination twice to confirm and save settings.
After these actions, the system immediately activates the protection. The next time the screen is turned on or after the lock timer expires, the device will require the specified combination to be entered. If you have not previously linked a Mi Account, the system may strongly suggest that you do this to allow access to be restored in the case of a forgotten password.
☑️ Security check
In some versions of firmware, an additional layer of protection can be configured for specific applications, called Application Protection, which allows you to request a password or fingerprint when you run selected programs, such as a gallery, messengers or bank clients, which creates a second layer of defense even if the phone is already unlocked by the owner.
Setup of biometric protection and Face ID
Biometric authentication methods greatly speed up access to the device, eliminating the need for users to enter characters each time. Today’s Xiaomi smartphones use a fingerprint scanner built into or below the on button, as well as a facial recognition module, which works based on the user’s unique physical characteristics.
To set up your fingerprint, you need to go to the Passwords and Security menu and select "Unlock fingerprint"; the system will ask you to apply your finger several times to the scanner to create a digital cast; it is recommended to add both thumbprints, as this increases the usability of the phone in different positions of the hands.
Face ID uses a front-facing camera to scan facial geometry, and while less secure than a fingerprint scanner, it provides instant access to the device.
⚠️ Note: Biometric data is stored in a secure, isolated processor module and is not transferred to the company’s servers. However, unlike a password, biometrics cannot be “changed” if its data is somehow compromised.
Hiding applications and files from outsiders
The MIUI shell has built-in tools to hide sensitive content, which goes beyond simply locking the screen.Hidden Apps allows you to remove icons of selected programs from the desktop, making them visible only after you enter special code in the dial menu or through a hidden entrance to the application menu.
To activate this feature, go to Settings → Apps → Hidden Apps. Here you can select the programs you want to hide, access them via swipe up the menu of all apps, or by entering a specified code, which is an effective way to hide the presence of certain programs from children or colleagues.
A similar mechanism works for files in a standard Explorer: the Privacy Protection folder allows you to move photos, videos and documents to an encrypted storage, and access to this folder also requires password or biometric authorization, which creates a strong barrier to accessing personal media files.
How to log into hidden applications?
Using the second space is another powerful feature of Xiaomi’s ecosystem, which allows you to create a completely isolated environment with your applications, settings and accounts, switching between the main and second space is fast, which is convenient for separating work and personal profiles on one device.
Password management and restoration of access
A forgotten screen lock password is one of the most common problems users face. If you haven't tied a Mi Account or set up security issues, recovering access may not be possible without losing data. Android's security system is designed in such a way that it's extremely difficult to get around the lock without resetting settings.
The table below shows the main recovery methods and their implications for the data on the device:
| Method of recovery | Data security | Conditions required | Difficulty |
|---|---|---|---|
| Entering the Mi Account Password | Data is retained | Active Internet, knowledge of account password | Low. |
| Reset via Recovery | Complete removal | Physical access to buttons | Medium |
| Service centre | Complete removal | Device ID, checks. | Tall. |
| Find Device Service | Complete removal | Pre-enabled search function | Low. |
To avoid losing information completely, back up your sensitive data regularly in Google Drive or Mi Cloud, and it’s also helpful to write complex passwords in paper and store them in a secure location, separate from your phone, a trivial but most effective way to ensure access to information.
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Write your new complex password to a secure location (notebook, password manager on PC) immediately after installation, while you remember it.
Additional security measures of the system
In addition to locking the screen, there are a number of system settings that improve the overall security of the Xiaomi smartphone, primarily the “Find the device” feature, which must be activated by each user, which allows you not only to track the location of the lost gadget, but also remotely lock it or erase all data.
You should also pay attention to the settings. SIM-Installation of the map. PIN-The SIM card code will prevent it from being used on another phone in the event of a device being stolen, and even if an attacker can bypass the screen lock (which is unlikely), they will not be able to use your SIM card to obtain confirmation codes from banks.
⚠️ Please do not use simple codes like 0000 or 1234 for SIM-If you enter three times incorrectly, the card is blocked, and you will need to unlock it. PUK-code that is on the plastic card from the SIM card.
Regular security updates are another critical aspect: Xiaomi releases patches every month to close operating system vulnerabilities, and ignoring updates can leave your phone open to exploits that can bypass the lock screen through specific vulnerabilities in the software.
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Comprehensive protection includes not only the password on the screen, but also the PIN on the SIM, active Mi Account and regular system updates.