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comment scanner un qr code

Pour scanner un QR code sur un smartphone Android, there are several methods you can use, depending on your device and its Android version.

Using the Camera App

On many modern Android devices, you can scan QR codes directly using the camera app:

Open the camera app on your device.
Point the camera at the QR code. The camera will automatically detect and scan the QR code, often displaying a notification or a pop-up with the scanned information2 3 4.

Using Google Lens

Google Lens is another convenient method to scan QR codes without needing a separate app:

Hold down the "Home" button to bring up the Google Assistant.
Look for the Google Lens icon (a square icon resembling a camera) and tap on it.
If you haven’t used Lens before, you may need to enable it to use your camera.
Point the camera at the QR code, and Google Lens will scan it and display the information1 2 4.

Device-Specific Methods

Samsung

Open the camera app and point it at the QR code. A pop-up will appear with the scanned information2.

Xiaomi (MIUI)

Ensure the "Scan QR codes" option is enabled in the camera settings. Then, open the camera app and point it at the QR code2.

Huawei or Honor

From the lock screen, swipe up to reveal the quick settings and tap on the Huawei Vision symbol (or an eye icon in some versions) to scan the QR code.
Alternatively, you can access the QR code scanner from the gallery app by selecting an image with a QR code and using the "Scan QR code in image" option1 2.

OnePlus, Oppo, Realme

Open the camera app and point it at the QR code. The camera will detect and scan the QR code automatically2.

Additional Tips

Ensure the QR code is well-lit and the camera lens is clean.
Maintain the right distance from the QR code; typically around 30 cm.
If the camera app does not detect the QR code, check if the QR code scanning option is enabled in the camera settings3 4.

Using Third-Party Apps

If your device does not support native QR code scanning, you can download third-party apps such as Barcode Scanner by ZXing Team or Kaspersky QR Reader2 3.