![]() So, continue to implement the fixes below in that case. However, if the problem is limited to WhatsApp Web, you must investigate the issue further. Microsoft is also updating Camera to fit in better with Windows 11s look and feel, with a grey border around the camera preview and updated icons. The problem lies with the cell phone if it cannot scan any QR code. The built-in camera apps on most phones can read QR codes, and now you wont need a third-party app for scanning them with your PCs camera either. You can verify that by scanning another QR code. If you keep your devices neat and clean, you should ensure that there are no other issues with your cell phone camera. By design, any QR code reader is designed to ‘read’ the code, but what they will see is not particularly useful, Sami Gallegos, press secretary for the state’s COVID-19 Vaccine Task. Likewise, you should also keep the cell phone camera lens spotless, as a dusty lens would consider dust as part of the QR code, making it impossible to scan the code correctly. You can use link shorteners or dynamic QR codes for cleaner QR code images. Test the code using multiple scanning devices to know which one does not work. For instance, scan the code after changing the color before you move on to add an image or a logo. Invalid QR code or the URL where the QR code links to is deleted or no longer exists 10. Test your QR code after each step and element. Consider the right size of the QR Code 6. Moreover, make sure that your mouse cursor isn't on the QR code you are trying to scan. The QR code doesn’t have enough contrast 3. If the issue persists, launch the Play Store app and download a third-party QR code scanner app. Hence, you can start troubleshooting by cleaning your monitor screen to ensure no large dust particles are blocking the way to scan the code properly. Don’t hold your device too close or too far away from the QR code. Note that the QR code changes after 20 seconds. ![]() Align the QR code on the screen with the WhatsApp scanner’s viewfinder and wait for your browser to establish the connection. If dust particles build up on your screen and disrupt any one of these squares, your cell phone camera won't be able to perform a proper QR code scan. On Android, open WhatsApp, tap the three-dot menu icon in the top-right corner, select Linked devices, and select Link A Device. QR codes are a bunch of black and white squares. ![]()
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