How to enable screen lock on Xiaomi Android: Full instructions

Xiaomi’s smartphones store a huge amount of sensitive information, from banking apps to personal emails and photos. Ignoring basic security settings can lead to data leakage in the event of a device loss or theft, which is why the first step after buying a new gadget should be to properly configure access protection.

MIUI and the new HyperOS have advanced access control tools that go far beyond simple four-digit code. Users can combine different methods to create layered protection that prevents unauthorized people from accessing the interface.

The process of activating protection is intuitive, but has its hidden features depending on the version of the firmware. Below we will take a detailed look at each step so that you can choose the most convenient and reliable way to protect your gadget from unauthorized access.

The main types of locks in MIUI and HyperOS

Before you start setting up, it’s important to understand what tools the Chinese-made Android operating system offers, and the standard suite includes classic and biometric methods, each with its own advantages and disadvantages.

The most common option is digital. PIN-It's easy to quickly type with one hand and is common to most users, but the four-character digital combination is the least secure, because it's easy to pick up by looking at the finger movements of the wearer.

• 🔑 pattern lock – the connection of points in a certain order on the screen, which is visually more difficult to peek from the side.
• 🔢 Password – a combination of letters and numbers that provides the highest level of cryptographic data protection.
• 👁️ Face ID — face unlock using a front camera to analyze the characteristics of the owner.
• 👆 The fingerprint scanner is a biometric method that is considered one of the fastest and most reliable at the moment.

The choice of the particular method depends on your habits and security requirements, for example, banking applications often require a password, while a fingerprint is sufficient for everyday use.

Step-by-step instructions for setting a password

To start the setup, you need to go to the corresponding menu of the system. The algorithm of actions is the same for most models of Redmi, POCO and Xiaomi. Open the main menu and find the Settings icon, which usually looks like a gear.

In the list of options that opens, you can scroll down to the security section, depending on the version of MIUI, this item may be called Passwords and Security or just Security. Click on it to go to access control.

Find the lock and tap it, and the system will tell you to choose the type of protection. If you have not previously set any restrictions, the list will be complete «PIN-code.

⚠️ Note: When setting a password, the system may suggest you create a Mi Account or link a phone number to restore access.Do not ignore this step, as with a forgotten password, this may be the only way to return access to the device without completely resetting.

Once the combination is entered and confirmed, the system will apply the settings immediately, and now every time the screen is turned on or out of sleep, the smartphone will require authorization.

Setup of biometric protection

Biometrics significantly speeds up the unlocking process, making it almost invisible to the user. In Xiaomi mid-range and flagship smartphones, the fingerprint scanner is built directly into the on button or located under the display.

To add a fingerprint, go to the Settings menu → Passwords & Security → Unlock by fingerprint. You will need to apply your finger to the sensor several times, slightly changing the angle of inclination so that the system counts all the faces of the papillary pattern.

• 🖐️ Add fingerprints of both thumbs for ease of use in either hand.
• 👌 Write down your index finger if you are comfortable holding your phone in grip.
• 🔄 Remove old prints periodically and add new ones if the old ones are no longer readable.

Face ID is based on algorithms for analyzing images from the front camera, and although this method is less secure than a print (it can be fooled by a high-quality photo), it is convenient in situations where hands are busy.

It is important to note that biometric data is stored in a secure partition of Tee memory and is not transferred to the company’s servers, which guarantees the confidentiality of your biometrics.

Additional screen security parameters

In addition to the basic login method, the system offers flexible settings for the blocker behavior, which allows you to adapt the screen to personal preferences and increase privacy.

One of the useful features is that you can display notifications on a locked screen, so you can set the system to keep the content of the messages hidden until you unlock it, and that prevents the information from leaking if the phone is lying up in a public place.

The Smart Lock feature deserves special attention: it allows you to keep your phone unlocked when it is near a trusted Bluetooth device (such as a smartwatch) or in a specific geographic location (such as at home).

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For maximum security, disable the content of notifications on a locked screen, which will hide the codes from SMS from banks and text messages from prying eyes, even if the phone is unlocked.

Managing notifications and widgets on a locked screen

The lock interface in HyperOS and newer versions of MIUI allows you to display widgets and notifications. While convenient, the excess information can interfere with quick access to the camera or phone.

You can configure which apps are allowed to display notifications before unlocking, go to the notification settings and select Hide Content mode, in which case you will only see the sender's name, not the text of the message.

You can also turn off swipes on the lock screen, for example, you can prevent the camera or control center from opening without entering a password, which is especially true if you often carry your phone in a bag where accidental touches are possible.

• 🔒 Limit access to the notification curtain in the security settings.
• 📵 Turn off the alarm on your phone if you are not using this feature.
• 🎨 Set up the style of the font and watch to personalize the look.

Competent setting of these parameters makes the use of the smartphone not only safe, but also aesthetically pleasing, eliminating visual noise.

Problems and solutions

Sometimes users are faced with situations where the system behaves unpredictably, such as a fingerprint scanner stops responding, or a phone requires a password immediately after a reboot, ignoring biometrics.

It’s worth knowing that after every complete reboot of your Android device, you need to enter your master password or pattern lock, a system security limitation that you can’t get around because the data encryption keys are stored in memory that is only available after manual authorization.

⚠️ Note: If you have forgotten your screen lock password and have not linked your Mi Account, the only way to get your phone back is to reset completely to the factory settings (Hard Reset), which will result in the permanent deletion of all photos, contacts and files.

If the touch screen is not working properly ("walking" cursor, no buttons are pressed), try to clean the area around the sensor of moisture or dirt. In case of software failures, cleaning the cache of the application "Security" through the application management menu will help.

In difficult cases, when the phone is locked because of too many incorrect input attempts, you have to wait for a time interval that grows exponentially with each error, and patience is the only helper.

Frequently Asked Questions (FAQ)

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Regular password change and the use of biometrics in conjunction with the PIN-code create the optimal balance between usability and reliable protection of personal data.