How to scan. QR-Xiaomi Redmi Note 9: all ways with photos and nuances

Scanning. QR-The codes on Xiaomi Redmi Note 9 seem to be an easy task, but many users face unexpected difficulties: the built-in scanner does not recognize the code, the application requires additional permissions, the camera simply does not “see” the square pattern. In this article, we will discuss all the current methods of scanning. QR on your device – from standard functions MIUI Little-known life hacks that will save time.

Features of the Redmi Note 9 (model M2003J15SC/M2003J15SS) The manufacturer has integrated the scanner. QR It's directly into the Camera system app, but it depends on the firmware version and regional settings. If you can't scan the code the first time, don't rush to install third-party software. 80% In some cases, the problem is solved by setting 3-4 settings in the smartphone menu.

We tested all methods on the Redmi Note 9 with MIUI 12.5, 13, and 14 firmware (including global and Chinese versions), and also took into account the nuances for devices with root rights or custom shells. At the end of the article you will find a table comparing methods on speed, reliability and Internet requirements.

1.Scanning through a standard MIUI camera

The most obvious and quick way is to use the built-in camera. On the Redmi Note 9, the QR scan function is activated automatically when you hover over the code, but there's a hidden setting that disables this feature in some regional firmware. Here's how to check and turn it on:

1. Open the Camera app (the camera icon).
2. Point the lens at QR-code so that it fits fully in the viewfinder. 10 to 30 cm.
3. If the code is not automatically recognized, tap the QR icon in the upper right corner of the screen (appears when the code is detected).
4. If the scan is successful, a notification will appear with a suggestion to click on the link or save the data.

If the QR icon doesn’t appear or the camera doesn’t see the code:

• 🔧 Go to Settings. → Annexes → Camera. → Permits and make sure camera and storage rights are included.
• 📱 Update the Camera app through the Play Market or MIUI App Store.
• 🔄 Reboot your smartphone – sometimes system scanning services will “hang” after a long work.

⚠️ Note: On Chinese firmware (China) ROM) scanning QR The camera can be blocked without rooting permission, in which case use the methods in Sections 2 or 3.

Insert permissions for the annex "Camera"

Update the application to the latest version

Reboot your smartphone

Check the purity of the camera lens

Turn off energy saving for the camera-->

2. Use of Google Lens (for global firmware)

Google Lens is a universal tool from Google that can recognize not only the QR-It's codes, but also text, objects, plants. On the Redmi Note 9, it's more stable than a standard scanner. MIUI, Especially if you have a global firmware installed (Global). ROM). To take advantage of it:

1. Open the Google app (an icon with the letter “G” on a colored background).
2. In the search bar, click on the icon “Google Lens” (stylized camera).
3. Put the camera on QR-Lens will automatically identify it and suggest actions (clicking on a link, copying text, etc.).

Advantages of the method:

• 🌍 It works on all kinds of firmware, including China. ROM (Installation of Google Play Services).
• 🔍 It recognizes even corrupted or blurred codes (up to 30% of data loss).
• 📱 Integrated in Google Photos – can be scanned QR photo-shoot.

Disadvantages:

• 🚫 Requires an internet connection to handle some types of code (e.g. vCard or Wi-Fi).
• 🛑 Chinese firmware may not be installed without additional manipulation (you need to enable Google Framework).

Standard MIUI camera

Google Lens

Third-party applications (QR Scanner, NeoReader, etc.)

Another way.-->

3. built-in MIUI Scanner (hidden function)

Few people know, but MIUI has a separate system scanning app called the Scanner (com.xiaomi.scanner), which doesn't have a desktop shortcut, but runs through a menu or voice assistant. Here's how to find it:

Method 1: Searching through the system

1. Swipe down the main screen to open the search bar.
2. Enter the request for “Scanner” or “Scanner”.
3. Select an app with an icon QR-code.

Method 2: Google Assistant

1. Activate the voice assistant (click the Home button or say “OK, Google”).
2. Tell the command: "Scan the QR-code».
3. The system will automatically open MIUI Scanner.

Features of MIUI Scanner:

• ⚡ It works without the internet (unlike Google Lens).
• 🔒 Supports Wi-Fi scanning QR, vCard, URL even some PDF417 (for example, on tickets).
• 📌 You can add a shortcut to the desktop: hold the app icon in the menu and drag it to the screen.

⚠️ Attention: On some firmware MIUI 14 The Scanner app may not be available, in which case upgrade your smartphone to the latest version or use alternative methods.

4. Third-party applications: when standard methods do not work

If the Redmi Note 9's built-in tools refuse to scan QR, third-party software will come to the rescue, and we tested 5 popular scanners and selected the best ones in terms of functionality and security:

Selection recommendations:

• 🛡️ For safety: Kaspersky QR Scanner (checks links to malware).
• 📦 For working with barcodes: NeoReader or ZXing.
• 💡 To generate their own QR: QR & Barcode Scanner (there is a built-in editor).

How to install and use:

1. Download the app from Play Market or APKMirror (for Chinese firmware).
2. Open it and give access to the camera.
3. Point the camera at the code - recognition occurs automatically.

⚠️ Warning: Avoid scanners from unknown developers with few downloads. Some applications can steal data from scanned codes (especially dangerous codes for authorization in banks or social networks).

💡

Before installing a third-party scanner, check for reviews on 4PDA or XDA – there are often discussions about hidden app features that are not visible in official descriptions.

5. scanning QR from the screen of another device

Sometimes you need to scan the code that is displayed on another phone, tablet or monitor. A standard Redmi Note 9 camera may not be able to do this due to screen flickering or low resolution.

Method 1: Use the Photo mode

• 📸 Take a photo. QR-code (hold the smartphone evenly, without tilting).
• 🔍 Open a photo in Google Photos and click on the icon “Google Lens».
• 🔗 The app recognizes the code and suggests actions.

Method 2: Settings of the source screen

• 🖥️ On the device where it is displayed QR, Reduce the brightness to 50-70% (to reduce flickering).
• 📏 Increase the code size to the maximum (fill in the entire screen).
• 🔄 If the code is animated (for example, for WhatsApp login), take a screenshot and scan a static image.

Method 3: Special annexes

For complex cases (e.g. scanning with the OLED-screen or projector) use:

• 🔦 QR Code Reader (from TWMobile) – has a Screen Scan mode for codes from screens.
• 🎞️ Screen Mirroring – if the code is Smart TV, Connect to it via Miracast and scan from your phone.

💡

When scanning from the screen, avoid direct sunlight, which creates glare that interferes with recognition, and it is better to do the process in a room with uniform lighting.

6. Problem Solving: Why QR is not scanned

If none of the methods worked, check the following points:

Additional advice:

• 🔋 If the battery is under 15%, the camera may not work stable – plug in charging.
• 📵 In places with a bad signal (metro, basement) turn off mobile Internet – it can interfere with the processing of code.
• 🔄 After updating MIUI Reset the camera settings: Settings → Annexes → Camera. → Warehouse → Drop it.

FAQ: Frequent QR scanning questions on Redmi Note 9