Xiaomi’s modern smartphones have long since ceased to be just call devices, becoming powerful pocket offices. Owners often wonder how to scan various documents or codes on Xiaomi without installing unnecessary programs. The answer lies in the deep integration of text recognition and image functions into the standard shell of MIUI and HyperOS.
Built-in algorithms allow you to instantly translate text, copy business card data, or save checks digitally, and understanding how to properly activate these tools will save you a lot of time in your day-to-day tasks.
Next, we’ll take a look at all the scanning methods available, from standard system tools to specialized utilities that turn your gadget’s camera into a professional scanner.
Use of built-in scanner in the Camera application
The fastest way to access the scan feature is to use the standard Camera app. Xiaomi engineers have implemented a special mode that automatically recognizes QR-You don't have to look for individual icons if you know where to activate them.
To get started, open the app and find the Scanner icon (often looks like a square with dots inside) in the top menu or mode list. After switching to this mode, point the camera at the object. The system will determine the type of content: if it is a link, it will suggest a transition; if the text recognizes it for copying.
It's important to note that scanning quality is directly dependent on lighting and focusing. Xiaomi's camera has great autofocus, but in poor light, the algorithms can go wrong. Try to keep the device parallel to the plane of the document to avoid distortion.
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Keep your phone still for 1-2 seconds after getting stuck on the code so that the system can analyze the image and suggest actions.
The scanner mode in the camera supports batch processing, which means you can scan multiple codes in a row and they will be stored in history, a feature that is particularly useful when working with product labeling or collecting contact information.
Scanning documents through the Gallery app
Many users do not know that the built-in gallery MIUI/HyperOS It has a powerful built-in editor with a function OCR (optical character recognition, which allows you to turn ordinary photos into editable text or PDF-file-free.
To take advantage of this, take a photo of a document first. Then open the image in the gallery and click on the "More" or three-dot icon. In the drop-down menu, select "Text Recognition" or "Documents." The system will analyze the image and highlight the text blocks.
Once you've analyzed it, you can copy it, send it to a messenger, or save it as a note. Algorithms do a good job of keeping paragraphs structured, and this is ideal when you need to quickly transfer information from paper to digital.
Why is the text recognized with errors?
To improve scanning, the gallery has a feature called "Improving Document," which automatically aligns perspective, removes shadows, and makes the background white, mimicking the work of a real office scanner.
Appendix Scanner in the Tools folder
In a standard firmware build, there is always a separate Scanner app, which is usually in the Tools folder, which is more advanced than the camera mode, since it is designed specifically for code and translation.
When you run the app, you'll see a viewfinder with a few tabs at the bottom, and you can switch between modes here: QR-Code, barcode, translation, document and business card. Document mode allows you to take pictures with automatic definition of the boundaries of the sheet.
One of the key features is that you can translate text in real time, so if you point a camera at a restaurant menu or you point a foreign language instruction, you can see translated text right on top of the image, and this works with Google Translate or Xiaomi's own algorithms.
The scan history is stored inside the app, allowing you to go back to the data you previously read, which is convenient if you accidentally close the link or forget to copy the phone number.
Use of Google Lens (Google Lens)
If the built-in tools aren’t enough, Google Lens comes to the rescue, and this technology is built into most Android smartphones and is often available directly through the Google search widget or the button in the Camera app (the square icon).
Google Lens offers deeper image analysis, not just reading text, but also understanding context: finding products from photos, solving mathematical equations, recognizing dog breeds or plants, and scanning documents is one of the most effective tools.
To scan text, click on the camera icon in Google's search bar or select "Lens" in the camera interface. Hover the lens over the text, select "Text" and click "Select All." Then the text can be copied or sent to your computer if the devices are connected via Chrome.
☑️ Checking settings for high-quality scanning
The advantage of Google Lens is that it's cloud-based, and even if a smartphone's own image processor can't handle complex fonts, Google's servers can recognize them with high accuracy, but it requires an active Internet connection to work.
Third-party applications for professional scanning
For users who need to work with large volumes of documentation, built-in tools may not be enough, in which case it makes sense to install a specialized application from the Google Play Market.
Popular solutions like Adobe Scan, Microsoft Lens or CamScanner offer features not available in a stock camera. They can automatically create multi-pages. PDF-files, recognize text and then format and send documents directly to cloud storage.
Such applications often have their own quality improvement algorithms that are more aggressive than MIUI. They can completely remove the background, even if it is not uniform, and align the color reproduction for black (printing).
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Third-party applications are indispensable for creating multi-page PDF-documents and batch processing, while embedded tools are ideal for one-time operations.
When choosing third-party software, pay attention to permissions. Some free versions may add watermarks to scanned documents or require a subscription to export to Word/Excel.
Customization of quality and problem solving
The quality of the scan depends not only on the software, but also on the correct hardware settings. Make sure that the camera settings set the maximum resolution for photography. Artificial intelligence (AI Camera) modes can sometimes overdo the processing, making the text unreadable.
A common problem is blurring the edges of a document, and to avoid this, use the Perspective Correction feature that most scanners have, which cuts the extra and straightens the angled image.
If the scanner doesn’t focus on small barcodes, try using the Macro mode (the flower icon) or simply push the phone a little further and use zoom, although digital zoom lowers the quality.
What if the scanner doesn’t see the code?
A comparison of the main scanning methods on Xiaomi devices is presented in the table below.
| Method | Speed of operation | OCR accuracy | We need the Internet. | Best for you. |
|---|---|---|---|---|
| Camera (Scanner mode) | Tall. | Medium | Partially. | QR-codes |
| MIUI Gallery | Medium | Tall. | No. | Quick copying of text |
| Appendix Scanner | Tall. | Tall. | Yes (for translation) | Business cards and translations |
| Google lens | Medium | Very high. | Yes. | Complex texts and objects |
| Third-party Apps | Low. | Professional | No. | Documentation (PDF) |