Modern smartphones Xiaomiworking on shell MIUI or HyperOShave turned into universal tools for interacting with the digital world. One of the most popular functions remains the reading of two-dimensional barcodes, which are everywhere: in restaurant menus, on tickets, in advertising brochures and for authorization in instant messengers. Users no longer need to search for and install third-party applications, since the basic functionality of the system fully covers these needs. However, many device owners do not immediately find the right option, since manufacturers often hide it deep in the settings or change the location of interface elements. A standard camera may not automatically recognize the code without first activating the scanning mode. In this article we will analyze in detail all possible methods, from built-in tools to system widgets.
However, many device owners Redmi And Poco they don’t immediately find the right option, since manufacturers often hide it deep in the settings or change the layout of interface elements. A standard camera may not automatically recognize the code without first activating the scanning mode. In this article we will analyze in detail all possible methods, from built-in tools to system widgets.
You will learn how to set up instant recognition, what permissions are required for correct operation and what to do if standard methods fail. We will look at the nuances of working with different versions of the operating system Android on devices of the Chinese brand. This will allow you to spend less time searching for solutions and get to the content you need faster.
Using the built-in function in the Camera application
The most obvious and fastest way to start the capture process is to use the standard application Camera. In most current models Xiaomi this tool is already integrated into the basic software and does not require separate activation in the settings menu. You just need to open the application and point the lens at the code image.
If automatic recognition does not occur, you may have the corresponding option disabled in the shooting settings. To check, you need to go to the camera settings menu, usually this is a gear icon or three bars in the corner of the screen. Find the item responsible for the scanner and make sure that the switch is in the active state.
In some firmware versions MIUI the scanning mode is placed in a separate module inside the camera interface. You will need to scroll through the shooting modes (Video, Photo, Portrait) to the right or left until the “Scanner” or “Docs” icon appears. It is in this mode that the system focuses on text and codes, ignoring the artistic processing of the image.
⚠️ Attention: If the camera focuses, but the link does not appear, check the brightness of the phone screen and the lighting of the object. In weak light, the sensor may not read small details of the code matrix.
After successful reading, the system will offer several options for action depending on the type of encoded information. This could be going to a URL, adding a contact to your phone book, or connecting to a Wi-Fi network. The hint interface usually appears at the bottom of the screen or pops up on top of the viewfinder.
- 📸 Automatic recognition of links and text occurs in the background when the function is enabled.
- 🔗 Links are followed only after confirmation by the user to avoid accidental clicks.
- 💾 Saving data (contacts, Wi-Fi) occurs instantly in the corresponding system sections.
- 🌐 Supports all standards of two-dimensional barcodes, including popular QR and Data Matrix formats.
Setting up Google Lens
If the standard camera of your smartphone for some reason does not cope with the task or works slowly, ideal the solution will be to use technology Google Lens. This service is built into most Google-certified devices and is often integrated right into the search bar widget on your desktop. It provides the highest accuracy in recognizing even damaged or inverted codes.
It is not necessary to open a separate application to launch. Just click on the color lens icon in the search bar Google on the main screen. If there is no widget, the function can be found in the application Google or Google Photosby opening any image from the gallery. This is especially convenient if you have been sent a screenshot of the code in the messenger.
Inside the interface Google Lens you must select the “Search” or “Text” mode, although often the system itself determines the presence of a QR code. Point the camera at an object, and the system will instantly highlight the recognition area. After this, a plate with content will appear on the screen, which can be copied, translated, or opened in a browser.
Settings → Applications → Google → Permissions → Camera (Allow)
It is important to make sure that the service has the necessary permissions. The functionality will not work without access to the camera. It is also worth noting that some functions, such as real-time text translation or searching for products by photo, may require an active Internet connection.
- 🧠 Google's artificial intelligence recognizes objects, text and codes with high accuracy.
- 🛒 Ability to search for products by photo in online stores immediately after scanning.
- 🌍 Instant translation of text caught in the frame, without the need to take a photo.
- 📋 Copying text from paper directly to the smartphone's clipboard.
Use the Google widget on your desktop for quick access to the scanner without unlocking the phone (if supported by the model).
System security scanner and widgets
In shells MIUI i HyperOS there is a separate system application, which is often ignored by users, but has advanced functionality. It's called "Scanner" or "Security" and is located in the "Tools" or "System Applications" folder. This module is designed not only for codes, but also for checking files and clearing memory.
The main advantage of a system scanner over a regular camera is the ability to work without the Internet and the presence of a database of malicious links. Before going to the URL, the system checks it through services Google Safe Browsing and its own database Xiaomi. This is critically important when scanning codes from unverified sources, for example, from street advertisements.
For ease of use, you can place the scanner shortcut on the desktop or in the “Recent” menu. Also, in some versions of the firmware, the “Quick Launch” function is available, which is activated when you unlock the screen with a certain gesture or long press on the application icon. This saves time when you need to quickly pay for your purchase at the checkout.
| Function | Standard camera | Google Lens | System scanner |
|---|---|---|---|
| Launch speed | High | Medium | High |
| Security check | Basic | Advanced | Maximum |
| Offline work | Yes | Partially | Yes |
| Product recognition | No | Yes | No |
Using widgets on the desktop allows you to configure access to the scanner in one tap. T MIUI you can add the Scanner widget to the lock screen or home screen by selecting the appropriate size. This eliminates the need to search for an application in the general list or folders.
Scanning through the browser and third-party applications
Sometimes situations arise when the built-in tools do not work correctly or are blocked by the user. In such cases, browsers and specialized utilities come to the rescue. Most modern browsers, such as Chrome, Yandex Browser or Opera, have a built-in scanning function in the address bar.
To activate, simply click on the camera or QR code icon to the right of the address input field. The mechanism of action is similar to the system one: the camera opens in a small window, reads the data and prompts you to follow a link. This is convenient if you are already in the browser and need to quickly open the site.
If you need professional work with codes, for example, creating your own tags, scanning history or batch processing, you should turn to specialized applications from Google Play. They allow you not only to read, but also to generate codes of any format, as well as save history in the cloud.
⚠️ Attention: When installing third-party scanners, carefully read the permission requests. A code reading app shouldn't require access to your contacts, microphone, or location unless absolutely necessary.
Third-party solutions often offer additional features, such as creating history widgets or smart home integration. However, for the average user, the capabilities of a standard camera Xiaomi are usually more than enough. Overloading the system with unnecessary applications can lead to poor performance.
- 🌐 Browsers allow you to scan codes without leaving the current Internet surfing session.
- 📜 Specialized applications save a complete history of all scanned data.
- 🎨 Generate your own QR codes with logos and color design.
- 🔒 Privacy mode in some applications hides the contents of the code until confirmation.
Why doesn’t the camera see the code?
If the camera does not focus, wipe the lens. If the code is damaged or is printed on glossy paper that creates glare, try changing the angle of your phone. Sometimes increasing the distance to the object helps.
Solving common problems and errors
Despite the developed ecosystem Xiaomi, users may encounter problems when scanning. Often the reason lies not in hardware failure, but in software conflicts or privacy settings. If the camera opens the viewfinder but does not respond to the code, first check the permissions.
Go to Settings → Applications → All applications, find “Camera” or “Scanner” and select “Permissions”. Make sure that access to the camera is allowed. Sometimes, after a system update, rights may be reset, which blocks the scanning functionality.
Another common problem is dirty optics. Drops of grease or dust on the lens blur the image, and the algorithms cannot read the code matrix. A simple wipe with a soft cloth will often solve the problem instantly. It is also worth checking whether there is a protective film stuck on the camera, which may distort the picture.
Settings → Advanced settings → Accessibility → Quick launch
In some cases, clearing the camera application cache helps. Go to application management, select the camera and click "Clear cache". This will not delete your photos, but will reset temporary files that could cause an error in the operation of the recognition module.
☑️ Camera diagnostics
Safety when using QR technologies
The use of QR codes carries not only convenience, but also certain risks. Attackers can place fake codes on top of the original ones (so-called “quardjeacking”), redirecting users to phishing sites. Xiaomi implements protective mechanisms, but user vigilance remains the main security factor.
Always pay attention to the URL that appears before the transition. If the domain name looks suspicious or contains errors in the name of a well-known brand, clicking on the link is strictly not recommended. The system scanner MIUI usually warns of danger with a red screen.
You should not scan codes sent by unknown subscribers in instant messengers, especially if they promise winnings or require urgent action. Also avoid scanning codes that lead to downloading APK files from unverified sources, bypassing the official store Google Play.
⚠️ Attention: Service interfaces and menu locations may differ depending on the version of MIUI or HyperOS. If you do not find the described function, use the search in your phone settings.
Following simple rules of digital hygiene will allow you to safely enjoy all the benefits of technology. Smartphones Xiaomi provide powerful tools for this, but the final decision to follow a link is always made by a person.
MIUI's built-in security features are effective, but do not provide a 100% guarantee. Always check the website address before entering personal data.
Why is there no scanner button in the camera on my Xiaomi?
In some regions or firmware versions (especially Global ROM), the function may be hidden or removed. Try updating the Camera app through the GetApps store or Google Play. Also check the camera settings for the “Document Scanner” item or similar.
Is it possible to scan codes from the screen of another phone?
Yes, the Xiaomi camera perfectly reads codes from the screens of other devices. However, problems may occur due to low brightness of the source screen or moire (ripples on the screen). Increase the brightness and try changing the distance.
Is it safe to scan payment codes?
It is safe to scan payment codes if you use official banking applications or trusted system tools. Make sure that after scanning you are redirected to the bank application, and not to a browser on a suspicious site.
How to turn off the shutter sound when scanning?
The scanning sound is often tied to the general sound of the system or interface sounds. Try putting your phone on silent mode or turning off system sounds in the Sound and Vibration settings. In some versions of MIUI, the scanning sound can be turned off in the settings of the camera itself.