Modern smartphones Xiaomi and Redmi have become universal tools for interaction with the digital world, where QR-Codes have become the standard for payment, authorization, and information, and device owners often face the need to quickly read a matrix barcode, but they don't always understand where the desired function is hidden in the shell. MIUI The standard camera can behave differently depending on the firmware version, which causes confusion among users.
In this article, we will take a look at all the scanning methods available, from built-in system utilities to third-party solutions, learn how to set up automatic recognition so you don’t waste time manually running applications, and we will also touch on important security aspects, since scanning unknown codes can carry risks to your data.
We will focus on troubleshooting, which is a common problem where the camera simply does not see the code or refuses to click on the link, and understanding the principles of the scanner module will help you avoid errors and effectively use the capabilities of your gadget in everyday life.
Built-in MIUI and HyperOS camera features
The first and most obvious way is to use the standard Camera app, which in the latest versions of Xiaomi's shells, image recognition algorithms are built directly into the viewfinder. You don't have to search for individual icons, you just have to point the lens at the code, but this feature can be disabled by default or require activation in the settings.
To make sure your phone is ready to go, open the camera app and find the settings icon (usually three bars or a gear). The settings menu requires Locate to either "code scanner" or "Google Lens." If the switch is active, then getting stuck on the switch. QR-The system will automatically prompt you to click on a link or copy the text.
Importantly, in some regions or on global firmware versions, this feature can be replaced by integration with Google Lens, in which case the viewfinder corner will have a characteristic lens icon, and clicking on it will activate the smart analysis mode, which reads not only codes, but also text and objects.
⚠️ Warning: When using automatic click-through from the camera, always check the address in the pop-up window before confirming the action to avoid going to phishing sites.
If a standard camera doesn't respond to the code, try changing the distance to the object or the angle of the phone. Autofocus should clearly highlight the boundaries of the square. Sometimes it helps to tap the screen lightly in the area of the code to force the focus on the desired area of the image.
Use of the system application "Scanner"
Every Xiaomi, Redmi, and POCO smartphone has a special application called the Scanner installed out of the box, which is more powerful than a regular camera, because it is designed to decode barcodes in different formats, and you can find it in the Tools folder on your desktop or search the system.
When you run the app, you'll see a viewfinder with a mode switch button. The default mode is Code, which is perfect for QR. The advantage of this method is that it works even without Internet access for the read process itself (although you'll need a network to click on the link), and there's a scan history, which allows you to go back to the data you've read.
The app's functionality allows you to not only read, but also generate codes. You can create your own code for the Wi-Fi network so that guests don't have to manually enter a password. To do this, go to the Wi-Fi tab, enter your network data, and the phone will form an image that you can show to friends.
☑️ Checking the scanner
There are some useful settings inside the app, like the sound of vibration when you read it successfully, which is convenient when you scan goods in a store and hold your phone on weight without constantly looking at the screen, and the sense of tactile response confirms that the data is successfully recognized by the system.
Integration of Google Lens and Google Photos
Google’s ecosystem offers an alternative and often more accurate way to recognize patterns. Google Lens technology is deeply integrated into Android and is available through a desktop search widget, through the Google app, or directly from the gallery.
If you have a stored image of the code in the gallery, you don't have to send it anywhere. Just open the image in the Google Photos app, click the Lens button in the bottom panel, and the system will analyze the image and highlight the text areas or codes, suggesting that you do the appropriate actions.
You can use a Google widget on your desktop to work in real time, and you can click on the colored camera icon in the search bar, and the lens interface will start, and it can translate real-time text, recognize dog breeds, and of course, instantly read. QR-codes of any complexity, including damaged or partially closed.
Why does Google Lens sometimes work better?
Google’s services are especially relevant for older phone models, where the camera can focus slowly. Cloud-based data processing helps decode information faster if you have a stable internet connection.
Third-party apps from the Play Market
When embedded tools don’t meet the speed or functionality requirements, third-party development comes to the rescue. There are plenty of free apps on the Google Play store, such as Gamma Play’s QR & Barcode Scanner or Kaspersky’s solutions, which often run faster and have more flexible settings.
One of the main advantages of third-party scanners is that there is no advertising in the viewfinder and a history in the form of a convenient list with dates and times. Some applications allow you to create your own codes with logos and change the color scheme, which is useful for business or personal needs.
When installing this software, pay attention to the permissions you request. The scanner only needs access to the camera and possibly storage to save history. If the application requires access to contacts, microphone or geolocation without an explicit need, this is an occasion to think about the security of your data.
| Annex | Speed of operation | Advertising | Security |
|---|---|---|---|
| MIUI Scanner | Medium | No. | Tall. |
| Google Lens | Tall. | No. | Tall. |
| QR Scanner (Gamma) | Very high. | There is. | Medium |
| Kaspersky QR | Tall. | No. | Maximum |
When choosing a third-party solution, focus on the number of installations and user reviews. Popular applications with millions of downloads tend to undergo more rigorous checks and are regularly updated by developers to support new code formats.
Setup and troubleshooting
There are times when the camera of the Xiaomi phone stops seeing codes or doesn't work properly. Often the problem lies in the banal dirt on the lens. Wipe the camera with a soft cloth, as greasy spots can prevent autofocus from correctly determining the boundaries of the barcode.
If the lens is physically clean, check the software settings. Go to Settings → Apps → All apps, find Camera or Scanner, and select Clear Cache. This won’t delete your photos, but will reset temporary files that may have caused an error in the recognition module.
It’s also worth checking for updates for system components. The GetApps store or Play Market may have updates for Google services or Xiaomi system apps that fix camera bugs, sometimes solved by simply restarting the device.
⚠️ If the camera stopped focusing at all (not only on codes, but also on ordinary objects), it is possible that the autofocus module or camera plume is damaged, which requires contacting the service center.
In rare cases, a conflict can be caused by a third-party application using a camera (such as messengers or video calls). Try closing all background applications and running the scanner again. If the problem persists in only one application, reinstall it.
Safety issues in scanning
Technology QR-The code itself is secure, because it's just a picture, and the danger is the content that's encrypted inside. Attackers can print out their code and paste it over a real one (such as a store price tag or a traffic stop) to redirect you to a fraudulent website.
When scanning the code for payment, always check the recipient's details. If you scan the code for signing in to WhatsApp Web or Telegram on your computer, never confirm the sign-in unless you initiated the process yourself.
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Use antivirus scanners built into some QR reading apps, they can check for a link to see if there are threats before switching.
Modern versions of MIUI and HyperOS have built-in security that warns of potentially dangerous sites. Don't ignore the browser's red warnings. If the system says that a site may be malicious, it's better to close the page and find information in another way.
Remember that good code should not require you to install incomprehensible applications. APK-file from an unknown source, it's almost guaranteed to be a virus.
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The top security rule is: Never scan codes from suspicious sources and always check your browser’s address bar before entering personal data.