Setting up the scanner on the Xiaomi Redmi phone: from QR-code-to-document

Xiaomi Redmi Smartphone Scanner Is Not Just a Reading Tool QR-It's a full-fledged assistant in everyday tasks, from paying for purchases to digitizing documents, but many users are not even aware of the full capabilities of the built-in functionality. MIUI Or they're having trouble setting it up, like the Redmi Note 11 and the newer ones, and the default scanner is hidden in the quick settings menu, and on budget devices like the Redmi. 9A It has to be activated manually.

In this article, we will discuss all the ways to configure the scanner – from basic start-up through the camera to advanced functions like scanning barcodes of goods or creating a new device. PDF We'll focus on common errors: why the scanner doesn't recognize codes in low light, how to fix the malfunctions after the update. MIUI, What alternative applications should be installed if standard tools fail.

If you use Xiaomi Redmi at work or in business (for example, for inventory), tips on optimizing scanning speed and setting up auto-save results will come in handy. 6/7) We have prepared a separate section with workarounds - because even on outdated hardware you can run a modern scanner!

1. Built-in scanner in MIUI: where to find and how to turn on

On most Xiaomi Redmi smartphones, the scanner is integrated directly into the Camera app. To activate it, just open the camera and point the lens at the camera. QR-code - the system automatically recognizes it and prompts you to click on the link, but this method does not always work: for example, on Redmi. 10C firmware MIUI 13 scanner may not work if Scan option is disabled in the settings QR-code.

To ensure that the function is enabled:

1. Open the Camera app.
2. Touch the badge. ⚙️ Settings (or swipe up the screen on some models).
3. Find the Scan section QR-codes and activate the switch.
4. Return to shooting and point the camera at the code - in 1-2 seconds a notification will appear with a suggestion of action.

On devices with MIUI 14+ (For example, the Redmi Note 12 Pro scanner is also available through the notification panel. Swipe down from the top of the screen, find the scanner tile (if not, click Edit and add manually) and tap it. This is easier for quick access, but only works with the help of a scanner. QR-codes – barcodes or documents cannot be scanned.

It's important! On some models (e.g. Redmi) 9T) built-in scanner can conflict with the applications of banks (Sberbank, Tinkoff). QR-When there is no payment code, check the permissions for the Camera app in the security settings.

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If the scanner in the camera does not recognize codes in low light, turn on Night Shooting Mode - this will increase contrast and read accuracy.

Scanner through the "Scanner" app" (MIUI Scanner)

Starting with MIUI 12.5, Xiaomi has added a separate system app Scanner (MIUI Scanner, which supports not only QR-codes, but:

• 📄 Documents (passports, driver's license, checks) with preservation in PDF.
• 📦 Product barcodes (EAN-13, UPC etc.) with product information.
• 🔗 Wi-Fi QR-codes for fast network connection.
• 💳 Bank cards (number and expiration date, but not CVV!).

To find this app:

1. Open the menu of all applications (swipe up the main screen).
2. Search for Scanner or Scanner.
3. If the application is not available, check its availability in Settings → Annexes → Application management (possibly disabled).

Interface. MIUI Scanner is intuitive:

1. Select the type of scanning (QR, document, barcode).
2. Point the camera at the object – the system will automatically focus and recognize the data.
3. For documents, trimming, turning and quality improvements are available before saving.

On the Redmi Note 11 Pro models+ newer MIUI Scanner has a hidden function of scanning serial numbers of equipment (IMEI, SN) — It's useful for checking the originality of the devices before you buy it, and to activate it, tap the gear icon three times in the upper right corner of the app.

Make sure the document is on a flat surface.|

Turn off the flash if the lighting is sufficient |

Select the "Document" mode in MIUI Scanner|

Point the camera perpendicular to the sheet.-->

3. Setting up the scanner for payment (SberBank, Tinkoff, Mir Pay)

One of the most popular features of the scanner on Xiaomi Redmi is payment by QR-However, users often face problems here: the code is not read, the bank application does not open or an error occurs. QR. The reasons can be different – from incorrect resolutions to shell conflict. MIUI.

To set up a scanner for payment:

1. Check the permissions: Go to Settings → Annexes → Application management → Camera.Make sure that Camera, Warehouse and Overlay permissions are enabled on top of other applications.

Update the Banks Apps

Turn off battery optimization

• Go to Settings → Battery and Performance → Battery Optimization.
• Find the bank app and select No Limits.

For advanced analysis, install the CheckMark app:

• 🔍 Verifies the authenticity of drugs, alcohol and electronics.
• 📊 Compares prices in Ozone, Wildberries, Yandex Market.
• 📅 Expiration date (if the code contains such information).

⚠️ Attention! Some vendors put a fake barcode on top of the original. Always check the integrity of the package and compare the code to what's listed on the manufacturer's website.

Scanning of documents in PDF: Quality and preservation settings

Built-in MIUI Scanner allows you to convert photos of documents into PDF-It's convenient for digitizing passports, contracts or checks, but by default, scanning quality is poor, with documents blurred or with distorted colors.

To improve the outcome:

1. Open up. MIUI Scanner and select Document Mode.
2. Before scanning, touch the icons. ⚙️ Settings and activate: 🔲 Improved text (increases contrast). 🔲 Automatic pruning (removes excess fields). 🔲 Color mode (if you need the original form of the document).

Edit

• Standard (up to 1 MB, suitable for mail).
• High (up to 5 MB, for printing).

For professional scanning (e.g., multi-page contracts), it is better to use Adobe Scan or CamScanner.

• 📑 Package scanning (up to 50 pages at a time).
• 🔒 OCR-Recognition (converting text to an editable format).
• ☁️ Download to the cloud (Google Drive, Yandex Disk).

⚠️ Attention! When scanning sensitive documents (passports, TINs), turn off auto-save to cloud services. MIUI Scanner for this go to Settings → Privacy and deactivate the option Sync with Mi Cloud.

6 Problem Solving: The scanner is not working or is giving out errors

If the scanner on your Xiaomi Redmi has stopped working, first check the obvious reasons:

• 📱 Contaminated camera lens - wipe it with soft cloth.
• 🔋 Weak battery power (less than 15%) – some features are turned off to save energy.
• 🔄 Outdated firmware - update MIUI In Settings → The phone. → Updating the system.

Common mistakes and their solutions:

If the problem is not solved, try resetting the scanner settings:

1. Go to Settings. → Annexes → Application management → Scanner.
2. Press Warehouse. → Clear the data.
3. Reboot the phone.

On Redmi models with MediaTek Helio processor (e.g. Redmi) 10A) The scanner can slow down because of hardware constraints, and in this case, only installing a lightweight third-party application like this will help. QR Code Reader by Scan.

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If the scanner stopped working after the update MIUI, Try to roll back the firmware through Settings → The phone. → Updating the system → Three points. → Select the update package (you need a file with the firmware of the old version).

7. Alternative scanning applications

If Xiaomi Redmi’s built-in tools don’t suit you, consider third-party apps. They offer advanced features like offline scanning, text recognition, and other features (OCR) integration with cloud services.

Top.-5 scanner:

• 📱 Google Lens -- not only recognizes codes, but also texts, plants, landmarks. Integrated with Google Photos.
• 📄 Adobe Scan is the best choice for digitizing documents from OCR export Word/Excel.
• 🛒 CheckMark – specializes in authenticating goods and medicines.
• 🔍 QR & Barcode Scanner (Gamma Play) - supports 50+ code formats, works without the Internet.
• ☁️ CamScanner – convenient for working with cloud storage and teamwork on documents.

When choosing an application, pay attention to:

1. Permissions – Some scanners require access to Contacts or Locations for no apparent reason.
2. Offline mode – if you need to scan without the internet (e.g., on the subway).
3. Export formats – not all applications are saved in PDF/A (archival format for long-term storage).

⚠️ Attention! Free versions of scanners (like CamScanner Free) often add watermarks to documents or limit the number of scans per day. MIUI Scanner.

8. Scanner on older Redmi models (6/7/8 series)

On Xiaomi Redmi devices 6/7/8 and other budgetary models with MIUI 10–11 The built-in scanner is either missing or not working properly:

Method 1: Use Google Lens

1. Install the Google app (if removed) from the Play Market.
2. Open Google Photos, select any photo and tap the Lens icon (or upload a photo) QR-code).
3. The app recognizes the code and suggests an action.

Method 2: Install APK built-in scanner with new versions MIUI

1. Download. APK-file MIUI Scanner for your model from apkmirror.com.
2. Install the file by allowing installation from unknown sources (Settings → Security → Unknown sources).
3. Reboot the phone.

Method 3: Activate the hidden function through ADB

adb shell settings put global qr_scanner_enabled 1

This command includes a hidden scanner mode on old firmware.

1. Connect your phone to your PC and enable debugging. USB (Settings → The phone. → Version. MIUI → 7 times to tap → For developers → Debugging by USB).
2. Install. ADB Tools on the computer and execute the command above.
3. Reset the device.

It's important! 6A And similar models with 1-2 GB of RAM, the scanner may not work stable due to lack of memory. In this case, close all background applications through Settings before scanning. → Annexes → Clean up.

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On older Redmi models, it is better to use Microsoft Lens to scan documents - it is less resource-intensive and supports the use of the software. OCR even on a weak iron.

FAQ: Frequent questions about the scanner on Xiaomi Redmi