Open the Camera app
Point the camera at the QR code
Hold the iPhone steady
Wait for the notification banner to appear
Tap the notification banner
Use the link or action that opens
If the QR code does not scan, go to Settings
Tap Camera
Turn on Scan QR Codes
Try scanning again
If needed, open Control Center
Tap the Code Scanner icon
Point it at the QR code
Tap the result when it appears