In face Xiomi: how to use Face ID on Xiaomi smartphones

Modern smartphones offer many ways to protect personal data, and facial recognition technology, often referred to by users as “In Face” or Face. ID, Owners of Xiaomi brand devices (including sub-brands Redmi and Poco) can activate this feature to unlock the screen instantly without the need to enter PIN-This is especially true in situations where hands are rolled or you need to access notifications quickly.

However, despite its apparent simplicity, biometric authentication systems based on Android and the MIUI shell or HyperOS have their own setup nuances. Many users are faced with the fact that the feature does not work in the dark, requires too accurate positioning of the phone or is not at all on the menu. Understanding the principles of scanning algorithms will help avoid common errors and improve the security of your gadget.

In this article, we will discuss in detail the activation process, fine-tuning sensitivity and methods for solving problems when the smartphone no longer recognizes the owner, you will learn how software recognition differs from hardware, and how to use this feature in everyday life for maximum comfort.

Principles of biometric unlocking on Xiaomi

The technology, commonly referred to as “In Face,” is based on two-dimensional image analysis from the front camera on Xiaomi devices. Unlike other flagships’ point projector hardware, the focus is on AI software algorithms, which read the geometry of the face, the distance between key points (eyes, nose, mouth), and compare the resulting benchmark with stored data.

The data processing process takes place locally in the protected part of the memory of the processor, which excludes the transfer of biometric data to the company's servers, this provides a high level of privacy. However, it is worth considering that if a strong change in appearance (thick-framed glasses, medical mask, abrupt change of hairstyle) the system may require additional confirmation through a password or fingerprint.

⚠️ Two-dimensional facial recognition is less secure than a fingerprint scanner or 3D-Scanning. It is not recommended to use Face ID as the only method of protection for banking applications, unless additional authorization is configured.

Speed is directly dependent on processor performance and light quality. In low visibility, the screen automatically brightens for face lighting, but this can lead to increased battery consumption. Understanding these physical limitations will help you manage your security settings more effectively.

Step-by-step: how to enable and configure Face ID

To activate the function, you need to have an already installed method of locking the screen, because biometrics is only an addition to it. Without a digital code or a pattern lock, you can't set up In Face. The setup process takes no more than one minute and requires stable lighting.

Go to the main settings menu of your device. Find the security section. Depending on the version of the MIUI shell or HyperOS, the path may vary slightly, but the logic remains the same. You will need to select the option to add new biometric data.

• 📱 Open “Settings” and go to the “Passwords and Security” section».
• 👤 Select “Face Unlock” or “Add Face Data».
• 👁️ Place your phone at eye level at a distance. 20-40 see and press "Start».
• ✅ After a successful scan, the system will offer to enable the screen unlock function.

In the scanning process, the system will ask you to turn your head slowly to cover different angles, which is a critical step in creating a quality digital profile, and if you ignore this step or do it too quickly, you can later experience recognition errors when you change the angle of the phone.

Advanced Settings and Security Parameters

Once you've set it up, it offers a flexible configuration, so you can control the behavior of the smartphone when it's recognized successfully, for example, you can prevent it from unlocking if the phone is on the table with the screen up, or you can require a look at the camera to confirm the action.

One of the important options is the Unlock Notice, which activates the screen as soon as the camera recognizes the owner, before the power button is pressed, which greatly speeds up access to content, but can be uncomfortable if you often carry your phone in a transparent pocket or bag where you may accidentally hit your face in the lens.

Some firmware versions offer a feature called "Increased Accuracy" that forces the system to perform deeper analysis of skin texture and geometry, which reduces the likelihood of error but may slightly increase response time. For older device models, this option may be missing or slower due to iron limitations.

The solution to the problem: why Xiaomi does not recognize the face

The most common cause of failure is insufficient lighting: the camera cannot physically read an image in complete darkness without infrared illumination, which is not available in most mid-range and budget models. If you are in a dark room, bring the phone closer to the light source or use a screen flash if this option is activated.

The second common problem is accessories: wide-black-framed protective glass, tight covers, or matte films can overlap part of the lens or create glare that the algorithm perceives as a hindrance. Try removing the case and checking the sensor's performance in a "clean" form.

⚠️ Note: If you put on a new security glass immediately after the face adjustment, the system may stop recognizing you, in which case you need to delete the old facial data and write down new ones already with the new coating.

Also worth checking is that the front camera is not contaminated, fat spots from the fingers or dust create a soapy image effect, which knocks the neural network down. Wipe the top of the screen with soft cloth. If the problem persists after all the manipulations, there may have been a malfunction in the system security application.

Using Face ID in Applications and Payment Systems

Many users mistakenly believe that activation of In Face automatically allows you to pay for purchases by face. On Xiaomi devices, the situation is more complicated: native support for payment via Google Pay or Mi Pay by face is often limited. Banking applications may require entering a password or using a fingerprint scanner to confirm transactions.

However, the feature can be used to log into various biometrics-enabled applications, including social networks, messengers (like Telegram or WhatsApp) and bank clients to view the balance, and customizing access to a particular application usually requires you to go to its internal security settings and select an authorization method.

It's important to distinguish between levels of access. Unlocking your phone is level one. Accessing your banking app is level two. Often, the phone unlocks in your face, but it still asks for code when you log in to the bank, and that's normal Android security behavior that you can't get around with standard methods without losing warranty and security.

• 💳 Payments by a person require support NFC Google Pay Certification (depending on the model).
• 🔐 In the banking applications Face ID Often works only for entry, but not to confirm the translation.
• 📲 Messengers allow you to completely switch to biometrics to protect correspondence.

Comparison of Face ID and Fingerprint Scanner

The choice between face recognition and fingerprint scanners depends on the use cases. The scanner, especially the one built into the screen or side button, works faster and more reliably in total darkness, is less demanding in the angle of view and is not afraid of the bright sun that often illuminates the front camera.

On the other hand, Inface wins in scenarios where the phone is lying on the table or in the hand at an angle that is uncomfortable for the scanner to touch, and is the only option for users who wear gloves in winter, but in face masks, recognition efficiency drops to almost zero unless a special option is configured (which reduces security).

The ideal solution is to combine the methods. Set up both biometrics. Use the one that is more convenient in everyday situations. If one method fails (wet fingers, darkness), the other one becomes a reliable insurance, which provides a balance between comfort and data security.

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Tip: For maximum speed in the dark, use a side fingerprint scanner, and leave Face ID for daytime use or situations where hands are busy.

Frequently Asked Questions (FAQ)

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Face ID on Xiaomi is a handy tool for quick access, but it shouldn’t be seen as the only line of defense for critical data without duplication with other security methods.