← All guidesFixing Common QR Scan Failures
Detailed instructions on how to fix common issues with QR codes such as scan failures, blurry codes, and unrecognized codes.
QR codes may fail to scan for several reasons such as poor contrast, incorrect size, or blur. Here's how to fix it.
Common Causes of QR Scan Failures
- Low contrast between the QR code and background.
- Too small size for the distance from which users are scanning.
- Blurred QR code due to low print quality.
- Wrong file format or using a compressed image that distorts the QR code.
How to Fix QR Scan Failures
- Increase contrast: Ensure the QR code is dark on a light background.
- Print larger: Ensure the QR code is big enough for scanning from the expected distance.
- Check for a clean quiet zone: A margin around the QR code prevents the background from interfering with the scan.
- Use high-quality files: Use SVG for printing, PNG for digital, and avoid compression.
Testing QR Code Scans
Always test your QR codes on both iPhone and Android devices to ensure compatibility.
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