![]() So, continue to implement the fixes below in that case. Note that the QR code changes after 20 seconds. Point the camera properly The iPhone Camera app should have no problem identifying and reading a QR code that’s big, bright, and clear. Align the QR code on the screen with the WhatsApp scanner’s viewfinder and wait for your browser to establish the connection. ![]() However, if the problem is limited to WhatsApp Web, you must investigate the issue further. On Android, open WhatsApp, tap the three-dot menu icon in the top-right corner, select Linked devices, and select Link A Device. Create a new note by clicking the bottom right corner. The problem lies with the cell phone if it cannot scan any QR code. Here’s how to scan a document on your iPhone: Open the notes app. You may have spotted these little black and white squares. QR codes are all over the place at the moment. If youre not too familiar with the technology, well help you get up to speed. Scanning a Quick Response, or QR code, is convenient and easy. To help monitor the spread of coronavirus, the government is now relying partly on QR codes (or Quick Response codes) to track areas at high risk. You can verify that by scanning another QR code. During the COVID-19 pandemic, people have become accustomed to using their smartphone cameras to scan small black-and-white square barcodes, allowing them instantly to do everything from access restaurant menus to pay bills. If you keep your devices neat and clean, you should ensure that there are no other issues with your cell phone camera. Ideally, a QR code should have a size-to-scan ratio of 1/10. The size-to-scan ratio is an effective way to determine the right size for your QR code. T he minimum size should be 2×2 cm (0.8×0.8 in). If your QR code is too small, it may not scan properly. ![]() 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. Possible causes for QR code scan problems Small QR code size. Moreover, make sure that your mouse cursor isn't on the QR code you are trying to scan. 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. 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. QR codes are a bunch of black and white squares. ![]()
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