I have Delta airline app on my Note 10 plus. When i open my boarding pass & QR code on delta app to get it scanned. It doesnt work. Why QR code on my phone doesnt get recognize/scan by QR scanners at airport??
Do you experience these symptoms with other QR code apps or just the Delta app?
Make sure that you have adequate screen brightness when showing the QR code. Many of those scanners require your phone to have a very bright screen so that the scan can be completed.