Basics4 min readMay 2, 2026By Alex Rivera
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How to Test QR Code Reader Problems & Fix Scanning Issues

Is your QR code slow to scan or completely broken? Get the ultimate troubleshooting guide to resolve all scanning errors.

Troubleshoot scanning errors

If your QR fails to scan: check the color contrast, expand the quiet margin border, reduce the size of centered logos, and increase the error correction to H.

AR

Written by Alex Rivera

Technical Director & Product Designer

Alex Rivera is a software engineer and digital designer specializing in mobile identity, QR technology, and contactless workflows. He has spent over a decade building high-performance web applications and native tools.

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