5 Easy Steps on How to Scan QR Codes on Huawei Mate 20

Huawei Mate 20 QR Code Scanning

Scanning a QR code using a Huawei Mate 20

QR codes are becoming increasingly common, and they can be found on everything from product packaging to billboards. If you have a Huawei Mate 20, you can easily scan QR codes using the built-in camera. Here’s how to do it:

Open the Camera app on your Huawei Mate 20. Tap the QR code icon in the top-right corner of the screen. Point the camera at the QR code you want to scan. The camera will automatically focus on the QR code and scan it. If the QR code contains a link, the link will open in your browser. If the QR code contains text, the text will be displayed on your screen.

Selecting the QR Code Scanner

The Huawei Mate 20 offers several options for scanning QR codes. You can use the built-in camera app, or download a dedicated QR code scanner app from the Google Play Store.

Option	Advantages	Disadvantages
Built-in camera app	– No need to download an additional app. – Works with most QR codes.	– May not have all the features of a dedicated QR code scanner app.
Dedicated QR code scanner app	– Offers more features, such as the ability to scan multiple QR codes at once or to create your own QR codes. – May be more accurate than the built-in camera app.	– Requires downloading and installing an additional app.

Once you have selected a QR code scanner, open the app and point the camera at the QR code you want to scan. The app will automatically decode the QR code and display the information on your screen.

Here are some tips for scanning QR codes with your Huawei Mate 20:

Make sure that the QR code is in focus.
Hold the phone steady while scanning the QR code.
If the QR code is not recognized, try moving the phone closer or further away from the QR code.

Positioning the Device

To ensure successful QR code scanning, proper device positioning is crucial. Here are detailed guidelines:

Positioning for Stationary QR Codes

When scanning stationary QR codes, hold your device directly above the code, ensuring the camera lens is perpendicular to the code. Center the code within the camera’s viewfinder and maintain a steady hand. Avoid excessive tilting or shaking, as it may result in a blurred image and scanning failure.

Positioning for Moving QR Codes

Scanning moving QR codes requires additional considerations. Hold your device at an angle that ensures the camera lens can capture the code while it moves. As the code moves, follow its trajectory with the device, keeping the code centered within the viewfinder. Maintain a consistent focus and avoid sudden movements that could disrupt the scanning process.

Optimal Distance and Lighting Conditions

The optimal scanning distance may vary depending on the device’s camera quality. Generally, a distance of 10-15 centimeters (4-6 inches) is recommended. Ensure that the QR code is well-lit and has good contrast between the black and white elements. Avoid scanning QR codes in direct sunlight, as glare can interfere with the camera’s ability to capture the code accurately.

Scanning Condition	Recommended Distance
Stationary QR Codes	10-15 centimeters (4-6 inches)
Moving QR Codes	Variable, depending on trajectory

Stabilizing the Camera

For optimal QR code scanning results, it’s crucial to stabilize the camera. Here’s how:

1. Hold the Phone Steady

Keep your Huawei Mate 20 steady in your hand, avoiding any shaking or movement.

2. Use a Tripod

If possible, mount your phone on a tripod to ensure complete stability during scanning.

3. Choose a Steady Surface

Place your Huawei Mate 20 on a flat, stable surface to minimize vibrations and camera movement.

4. Avoid Zooming

Don’t zoom in or out while scanning the QR code, as this can affect the camera’s stability.

5. Adjust the Distance

Position your Huawei Mate 20 at an appropriate distance from the QR code. The optimal distance may vary depending on the size of the code, but generally, aim for a few inches to a foot away.

Factors Affecting Camera Stability	Recommended Measures
Shaking hands	Hold the phone firmly or use a tripod
Uneven surfaces	Place the phone on a stable surface
Excessive zooming	Avoid zooming in or out while scanning

Reading the QR Code

To scan a QR code with the Huawei Mate 20, follow these steps:

Launch the Camera app.
Point the camera at the QR code.
Hold the phone steady until the QR code is scanned.
Tap on the notification that appears in the upper left corner of the screen.
The QR code will be displayed in a pop-up window.
Tap on the “Open” button to open the linked content.

Additional Information

The Huawei Mate 20 has a built-in QR code scanner that can be used to scan QR codes without having to install a third-party app.

The QR code scanner can be accessed through the Camera app or the Huawei Assistant.

The QR code scanner can be used to scan QR codes that are printed on paper, displayed on a screen, or embedded in an image.

When you scan a QR code, the Huawei Mate 20 will automatically open the linked content in the appropriate app.

For example, if you scan a QR code that links to a website, the Huawei Mate 20 will open the website in the browser.

If you scan a QR code that links to a contact, the Huawei Mate 20 will add the contact to your address book.

If you scan a QR code that links to a Wi-Fi network, the Huawei Mate 20 will automatically connect to the network.

Troubleshooting Scanner Errors

1. Camera Malfunction

Ensure that your camera is clean and unobstructed. If the issue persists, it might indicate a hardware problem. Contact Huawei support for further assistance.

2. Poor Lighting Conditions

QR codes rely on contrast to be detected. Use your phone’s flashlight or seek better lighting for optimal scanning.

3. Outdated Software

Make sure your camera app and Android software are up to date. Outdated versions may lack the latest QR code scanning optimizations.

4. Conflicting Apps

Close any other camera or QR code scanner apps that may be running in the background. These apps can interfere with the system’s default scanner.

5. Camera Permissions

Grant the camera app the necessary permissions in your device’s settings. Navigate to “Apps & notifications” and ensure that the camera permissions are enabled for your QR code scanning app.

6. Device Overheating

Overheating can affect hardware performance, including the camera. Allow your device to cool down and try scanning again after a break.

7. Advanced Troubleshooting

If the above steps do not resolve the issue, consider the following advanced troubleshooting methods:

Method	Steps
Reset Camera App	Go to Settings > Apps & notifications > Show all apps > Camera > Storage > Clear storage & cache.
Factory Reset	This option will erase all data from your device. Only perform this step as a last resort.
Contact Huawei Support	If none of the troubleshooting steps have been successful, contact Huawei support for professional assistance.

Customizing Scanner Settings

The Huawei Mate 20 provides extensive customization options for its QR code scanner. To modify the scanner’s settings:

Open the camera app.
Tap the “More” tab.
Select “QR code scanner.”
Scroll down to the “Scanner Settings” section.
Toggle the following options to your preference:

Auto Detect

When enabled, the scanner will automatically detect and focus on QR codes within the camera’s viewfinder. This feature can be useful for quickly scanning codes without having to manually adjust the camera’s focus.

Flash

Use the flash to illuminate QR codes in low-light environments. This can improve the scanner’s accuracy and speed.

Beep

Enable this option to have the scanner emit a sound when a QR code has been successfully scanned. This can be helpful when you want to scan codes in noisy environments or when you need to identify codes without looking at the phone’s screen.

Show Frame

Select this option to have the scanner display a frame around detected QR codes. This can help you align the camera more precisely for scanning.

Laser Scanning

Enable this feature to use a laser to scan QR codes. Laser scanning can improve the scanner’s accuracy and speed, but it may not be available on all Huawei Mate 20 models.

Scan Products

Toggle this option to enable the scanner to recognize product barcodes. This can be useful for scanning products in stores or online to compare prices or find information.

Translate

Enable this feature to have the scanner automatically translate scanned text into the phone’s default language. This can be useful for scanning foreign language QR codes or text.

Scanning Histories

Toggle this option to enable the scanner to save a history of scanned QR codes. This can be useful for quickly accessing previously scanned codes or sharing them with others.

Add Codes to Contacts

Enable this feature to have the scanner automatically add scanned QR codes that contain contact information to the phone’s contact list. This can save time and effort when adding new contacts.

Camera Panel Overview

Locate and tap the “Camera” icon from your Huawei Mate 20 home screen to launch the camera app. The camera panel will appear on your screen, providing access to various capture modes and settings.

Accessing QR Code Scanning

Once the camera app is open, swipe left on the bottom menu until you reach the “More” option. Tap on “More” to reveal a list of additional camera modes, including “QR Code.”

Scanning a QR Code

Point your camera at the QR code you want to scan, ensuring that the code is within the frame. The camera app will automatically recognize and scan the code, displaying the associated information or link on your screen.

Utilizing Advanced Features

Flashlight

In low-light conditions, tap the flashlight icon to illuminate the QR code and enhance its readability for scanning.

Autofocus

If the QR code is not in clear focus, tap the screen to trigger autofocus and ensure the code is sharp for accurate scanning.

Continuous Scanning

For continuous scanning, long-press the QR code scanning icon instead of just tapping it. This allows the camera to continuously scan for QR codes in your environment, making it convenient for scanning multiple codes.

QR Code Library

To view or manage scanned QR codes, tap the “Library” icon in the camera panel. Here, you can access a history of previously scanned codes and manage their associated information or links.

Custom Actions

For frequently used QR codes, such as business cards or Wi-Fi passwords, you can assign custom actions. Simply scan the code and tap the “Create QR shortcut” option. Assign a specific action to the code, such as opening a website or connecting to a Wi-Fi network.

### Specific Settings for QR Code Scanning

How to Scan QR Code on Huawei Mate 20

Scanning QR codes is a quick and convenient way to access information, make payments, and more. Here’s how to scan QR codes using the built-in QR code scanner on your Huawei Mate 20:

Open the “Camera” app.
Point the camera at the QR code you want to scan.
A small, square box will appear around the QR code. The camera will automatically focus and scan the code.
Once the QR code is scanned, a notification will appear at the top of the screen. Tap the notification to open the scanned content.