Scanning Guides
A scanning problem can occur at several stages: a device may not recognize the image, may not know how to handle the decoded content, or may reach an unavailable destination. The guide in this category helps separate those stages so you can investigate the actual failure rather than immediately installing another app.
Device support depends on the hardware, software, and scanning route. Begin with the appropriate built-in options and current manufacturer guidance. Record a specific result instead of making a universal compatibility claim. When a destination looks unexpected, inspect it and verify the request through an established route before continuing.
Publishers can make the experience easier by providing an ordinary link alongside a digital QR image and a suitable fallback in print. The same-device situation deserves particular attention: people should not need another camera to reach content already shown on their phone. Use the device topic pages for iPhone, iOS, Android, and Windows planning questions.
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