![]() ![]() Barcodes are 2D, meaning they can only be read by a special scanner in a horizontal direction. QR Codes were originally developed as more advanced versions of Barcodes to help with product inventory management. We will be there to answer your question.Typical QR Code scanning problems & their solutions However, you may still have questions and need help. We hope this guide helped to fix the QR code scanning issue on your Samsung Galaxy S21. Then try to scan a QR code to see if the app works perfectly. Once downloaded, open the app and allow camera access.
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