Modern smartphones have become universal tools for interacting with the digital world, and Xiaomi Redmi Note 9 is no exception. One of the most popular features that users are looking for is the ability to quickly read two-dimensional barcodes. This is necessary for payment in stores, connecting to Wi-Fi, clicking links or authorization in instant messengers. Owners of MIUI devices often face the question of where exactly this option is hidden, since a single button on the desktop “Scanner” may not be available by default.
In this article, we will discuss in detail all available scanning methods. QR-You will learn how to activate the built-in feature in the standard Camera app, how to use the powerful Google Lens tool, and where to find the specialized Mi Scanner app, which often goes unnoticed. Understanding these nuances will allow you to maximize the potential of your Android operating system and shell. MIUI.
We will not only look at software, but also address security issues, as scanning codes from unverified sources can carry risks, and focus and distance settings so that the camera clearly recognizes the image even in poor light. It is important to know that on global versions of MIUI firmware, the built-in scanner can be integrated directly into the Scanner widget or Camera app, while in Chinese versions it is a separate system application.
Use of built-in camera functionality
The most obvious and quick way to read code is to use a standard photo application. Xiaomi engineers built pattern recognition algorithms right into the viewfinder interface. However, this feature is not always active by default, and you need to enable it in the settings, which will save you from having to install additional software for simple tasks.
To activate the mode, open the Camera app and find the menu icon, usually located in the upper right corner (three horizontal bars). In the list that opens, select Settings. Scroll down to Code Scanner or QR Recognition. Slide the slider to the active position. Now, when you hover the lens on the code, the system will automatically suggest an action.
It is worth noting that the algorithms of operation may differ depending on the version of MIUI. On some updates, the camera reacts instantly, on others, it requires a light touch of the screen or the appearance of a pop-up. If automatic recognition does not work, try changing the distance to the object or erase the camera lens, as greasy spots can interfere with focusing on the small details of the barcode.
⚠️ Note: When using the camera for scanning, make sure that the settings do not include Quiet Shooting mode or specific filters that can reduce image contrast, making it difficult to read data.
For users who appreciate speed, this is the preferred method, because it doesn't require switching to other menus, just start the camera. However, if you need to scan codes en masse or save their history, a standard camera may not be enough and you have to turn to more specialized tools.
Google Lens app: The power of artificial intelligence
If the standard camera isn’t working properly or you want to get more information about the object that the lens is pointing at, the ideal solution is Google Lens, which is built into most Android devices and is deeply integrated into the system. On the Redmi Note 9, it can be called in several ways, making the scanning process extremely convenient.
Most often, the Lens icon is located right in the Google search bar widget on the desktop, and it is also available through the Google widget or by long pressing the home button (if you have the right gesture or navigation buttons set up). Unlike a simple camera, Google Lens not only reads the link, but also analyzes the content: it can translate text in real time, recognize goods, plants or animal breeds.
To scan the code, click on the square camera icon in the search bar. The viewfinder interface will open with additional tabs at the bottom (Translation, Text, Home, Shopping). Make sure you select the tab with the normal mode or Search. Point the camera at the code. The system instantly recognizes the data and offers a card with the action: open a link, add a contact or show the product in the store.
- 🔍 High accuracy of recognition of even damaged or poorly printed codes thanks to machine learning algorithms.
- 🌐 Ability to scan codes directly from the gallery by selecting the saved image and running Lens through it.
- 📝 Copy text from the image without the need to click on the link, which is convenient for Wi-Fi passwords.
Another unique feature is the ability to scan in real time with translation. If you are in a foreign country and see a menu or index with a sign from the Internet. QR-Lens can not only count it, but also immediately translate the result into Russian if the code contains textual information.
System application Mi Scanner
In the Xiaomi ecosystem, there is a separate, specially designed application called Mi Scanner (or simply "Scanner"), which is part of the system utilities package and is often hidden in the Tools folder on the desktop, the most functional tool for working with two-dimensional codes, sharpened for the needs of Redmi and POCO users.
When you run Mi Scanner, you'll see an interface that's optimized for readability. There's no extra functionality like shutter speed settings or ISO, which speeds up the work. The app automatically focuses on the code and emits an audible signal when you read it successfully. One of the key features is to keep your scan history, which allows you to go back to previously opened links if you accidentally closed your browser.
☑️ Checking the scanner settings
In some regions, the app may be called differently or combined with security services. If you don't find it, try searching the system: swipe down the center of the screen (opening a global search) and type in the word "Scanner." The system will tell you where the executable is.
| Function | Camera. | Google Lens | Mi Scanner |
|---|---|---|---|
| Launch speed | Tall. | Medium | Tall. |
| History of scans | No. | Got it (in the account) | Got it (locally) |
| Recognition of goods | Basic | Advanced. | Basic |
| Working without the Internet | Yes. | Partially. | Yes. |
Mi Scanner is especially useful for those who often use delivery services, e-tickets or coupons. the application can automatically determine the type of code (Wi-Fi, URL, text, business card) and offer the appropriate action, minimizing the number of unnecessary clicks.
Scanning through widget and control panel
For maximum convenience, the MIUI operating system allows you to put the scanning function in the most prominent place - on the lock screen or in the notification curtain. This saves time, since it does not require unlocking the phone and finding an icon in the application menu.
To add a scanner to the control panel, swipe down from the top edge of the screen to open the "Stork." Click on the edit icon (usually a square with a pencil or three dots). In the list of available toggles, find the "Scanner" or "Mi Scan" and drag it to the active zone. Now, when swiping down, you will always have a button at hand for a quick start.
Alternatively, you can use a widget on your desktop. Click on the blank space on the screen, select "Widgets" and find "Scanner" in the list. Choose your favorite design and place it on the home screen. Some widgets allow you to scan the code with a single click, bypassing the opening of the main interface of the application.
⚠️ Warning: Do not place the scanner widget too close to the edge of the screen, where accidental palm presses often occur when carrying the phone in your pocket to avoid inadvertently triggering the camera.
Also worth mentioning is the Quick Actions feature when the screen is off. In some firmware versions, double-pressing the volume button or a specific gesture can trigger the camera or scanner. Check Settings → Additional Features → Gestures to customize this feature for yourself.
What if the scanner doesn’t see the code?
Third-party apps from Google Play
In cases where the built-in Xiaomi tools for some reason do not suit the user (for example, a specific format for displaying data or integration with the corporate system), you can turn to third-party developers. Google Play store offers hundreds of solutions, from simple readers to powerful harvesters.
One of the most popular and reliable solutions is QR & Gamma Play’s Barcode Scanner or similar high-rated apps feature minimalist design, no advertising (in paid versions), and advanced reporting capabilities. QR-codes that are useful for business.
When installing third-party software, pay attention to the permissions requested. The scanner only needs access to the camera. If the application requires access to contacts, microphone or geolocation for no obvious reason, this is a reason to think about the security of your data. Android has a flexible rights management system that can be configured in the Settings menu → Apps → Permissions.
- 🚀 Ability to batch scan several codes in a row with saving to a file.
- 🎨 Create your own codes with logos and colored elements for marketing purposes.
- 📊 Scan statistics and data export in formats CSV or TXT for further analysis.
However, for 95 percent of ordinary users, a standard Mi Scanner or Google Lens is more than enough, and installing additional software only makes sense for highly specialized tasks, such as inventorying products or working with data scrapes.
Safety and troubleshooting
Use of the QR-Because code is not visually readable to humans, you can't know where it leads until you click on a link. Attackers can place their stickers on top of the original codes in public places, redirecting victims to phishing sites.
Always pay attention to the address of the site that appears in the pop-up window before you click. If the domain looks suspicious or different from what you expect (for example, instead of a bank - a set of letters), click on the link. Mi Protect antivirus, built into Redmi Note 9, can warn about the danger, but human vigilance is more important.
💡
Before clicking on the link from QR-copy the address and paste it into the search engine to check the reputation of the site on forums or in the databases of scammers.
If the camera is focused but the code is not being read, try changing the angle of the phone. glare from glass or glossy surface can interfere with recognition. Also make sure that the date and time settings are set to the correct time zone, as site security certificates depend on the current time.
💡
Security First: Never enter personal data and passwords on websites when you click through the site. QR-code from an unverified source, even if it appears to be official.
In conclusion, Xiaomi Redmi Note 9 provides all the necessary tools to work with the new model. QR-Proper camera setup and knowledge of capabilities MIUI Lets you forget about reading problems and enjoy the speed of interacting with the digital world.