Using my iPhone 7 camera for qr scanning
Camera qr scan states no usable data?
iPhone 7, iOS 14
Try scanning a different QR code.
If the issue persists, contact Apple Support directly, using this link:--> Get Support , or make an appointment and have your device inspected at an Apple Store or AASP (Apple Authorized Service Provider) among this list:--> Apple – Location Selector
After checking it out, they'll give you all the available options.
Regards
Giulio