Xiaomi’s modern smartphones have become universal tools that can instantly read encrypted graphics, a feature that has become the de facto standard for messenger authorization, payment, Wi-Fi connectivity, and discounts in stores. Users no longer need to search for specialized apps in the Play Market, as the Android system in the shells of MIUI and HyperOS already contains the necessary recognition algorithms.
However, despite the ubiquity of the technology, device owners often have difficulty initially configuring or updating the operating system. Camera interfaces change, and system security settings can block automatic link recognition. In this article, we will detail all the available ways that will allow you to effectively interact with two-dimensional barcodes.
We'll look at both the standard tools built into the system software and the alternatives for complex cases, learn how to set up automatic link opening, where to look for scan history, and what to do if the standard module refuses to work correctly. Information is relevant for most current models, including the Redmi Note series, Poco and the flagship Mi line.
Use of built-in scanner in the Camera application
The fastest and most obvious way to interact with QR-The codes on Xiaomi devices are the use of the regular Camera app, and the company's engineers have integrated the recognition module directly into the viewfinder, which eliminates the need for the user to run individual utilities. To activate this function, it is enough to open the application and point the lens at the image.
In some versions of MIUI or HyperOS firmware, automatic recognition can be disabled by default for privacy or power saving purposes. If nothing happens when you hover the camera, check your settings. Go to the camera settings menu (the icon of stripes or gears) and find the item "Code Scanner" or "Scan documents" to make sure that the switch is active.
Importantly, the viewfinder algorithm depends on the version of Android and the specific processor model. On older devices, recognition can take a fraction of a second longer than on flagships. It is also worth considering that in low light or low code contrast, the system may not work the first time.
💡
For better focus when scanning in the dark, tap the screen in the code area to force the flash on or change exposure.
When the system successfully identifies a graphic pattern, a pop-up notification or transition button will appear on the screen. The interface can vary: sometimes it is a pop-up on top of the viewfinder, and sometimes a notification bar at the top of the screen.
Specialized application "Scanner" in the Tools folder
If a standard camera is not doing its job or you need a deeper image analysis, Xiaomi offers a dedicated Scanner app, which is usually located in the Tools system folder on the desktop, which has advanced functionality and supports more data formats.
The main advantage of a separate application is that you can use the gallery, so you can take a photo of the code in advance and then open it through a decryption scanner, which is especially useful when physical access to the medium is limited, for example, if the code is displayed on a screen of another device or printed on poor quality paper.
The Scanner app can recognize not only standard QRs, but also other types of barcodes, and the formats supported are often:
- 📷 Standard. QR-link-code
- 🛒 Commercial barcodes EAN-13 and UPC shop-search
- 🏠 Specific codes for connecting smart home devices Mi Home
- 🎨 Color recognition and translation of text from images
There's also a scan history inside the app that's stored locally on the device, which allows you to go back to your data you've read before, even if you accidentally closed the link. However, be careful: the scan history in the Scanner app doesn't sync with the Mi Cloud for security reasons, so when you reset your phone, that data will be lost.
Scanning codes from the Gallery without installing programs
Often there is a situation when a screenshot of the QR-The code is already in your gallery, and open a separate app to read it laziness. MIUI And HyperOS has a smart image analysis feature right in the photo viewer, which makes it much faster to work with information.
To take advantage of this feature, open the desired image in the standard Xiaomi gallery. At the bottom of the screen or in the menu “More” (three dots), a “Recognize” button or an eye / square icon often appears. The system automatically analyzes the image for graphic markers.
If the code is found, the phone will suggest clicking on a link or copying text, which doesn't require an internet connection for the recognition process itself, because the analysis is done at the processor level of the device, but it will naturally require an active network connection to click on the link.
It is worth considering that this feature depends on the version of Google Lens or proprietary algorithm Xiaomi built into the gallery. On some global versions of firmware, this button may be missing or replaced with integration with Google Lens.
What to do if the recognition button does not appear?
Using the scanner widget on the desktop
For those who use QR-With codes every day, an important element of ergonomics is quick access. Xiaomi allows you to put the scanning function directly on the desktop in the form of a widget or shortcut.
To add a widget, you need to pinch the empty space on your desktop and select "Widgets." In the list, find the "Tools" or "Scanner" section. Drag the item to the screen. Now one tap on the icon will immediately open the scan interface, bypassing unnecessary steps.
In addition, new versions of HyperOS have a “Second Space” or sidebar feature, so you can add a scanner shortcut to the side menu that is called by a swipe from the edge of the screen, which is especially convenient when you are in another application, such as a browser or messenger, and you need to read the code urgently.
Quick access settings are also possible through assigning actions to volume buttons or double tapping on the back (if supported by the model). Go to Settings → Additional Functions → Quick commands and select the "Start Scanner" action, which will allow you to activate the function even when the screen is off.
Third-party applications for complex cases
Despite the wide functionality of the regular funds, there are situations when they are powerless: damaged codes, custom fonts or specific data formats may require the use of third-party software. There are many solutions in the Play Market, but not all of them are safe.
When choosing an alternative scanner, pay attention to the permissions the application requests. A good scanner should not require access to your contacts, microphone or location unless stated as a primary feature.
Among the reliable options are:
- 🛡️ Kaspersky QR Scanner – Checks links to viruses before opening
- 🔍 QR & Gamma Play's Barcode Scanner: Simple Interface and History
- 👁️ Google Lens – Deep Integration with Google’s Ecosystem
Third-party applications are justified if you need to scan large codes (such as from a monitor) or work in batch mode, and they often provide the ability to generate your own code, which can be useful for business or personal use.
☑️ Security check of a third-party scanner
Table of comparison of scanning methods
To make it easier to choose the best way to interact with codes, we have prepared a summary table that will help you understand which method is best for your particular situation, whether it is a quick payment or work with an image archive.
| Method | Launch speed | Gallery work | Security |
|---|---|---|---|
| Appendix Camera | Tall. | No (usually) | Tall. |
| Appendix Scanner | Medium | Yes. | Tall. |
| Gallery (photo) | Medium | Yes. | Tall. |
| Third-party Apps | Different. | Yes. | Depends on the App. |
As you can see from the table, Xiaomi’s regular tools provide the best balance between speed and security. Third-party apps should only be connected if there are specific requirements that are not covered by the system functionality.
Problems with recognition and ways to solve them
Even on modern smartphones, code reading can be disrupted, most often due to optical contamination or software conflict, and even a subtle layer of fat can scatter light and interfere with focusing on the small details of the code.
If the problem is software, try clearing the camera app cache. Go to Settings → Apps → All Apps → Camera → Clean and select Clear Cache. This won’t delete your photos, but will reset temporary files that may have been corrupted.
⚠️ Note: Never follow the links from QR-Phishing sites may be masquerading as legitimate resources of banks or social networks to steal passwords.
In rare cases, the problem may be with screen resolution or interface scale. If you have very large fonts or interface elements, the scan confirmation button may go beyond the visible area. Try to temporarily zoom in on the display settings.
It’s also worth checking for system updates. Xiaomi regularly releases security patches and camera enhancements. Go to Settings → About phone and click on the MIUI/HyperOS version to check for new firmware.
💡
Most scanning problems are solved by simply cleaning the camera lens or updating the system software to the current version.