Scanning Issues

Resolve scanning problems across devices, apps, and environments to ensure reliable QR code reading for all users.

Device-Specific Issues

iPhone Scanning

Built-in camera - iOS 11+ has native QR scanning
Control Center - Enable QR scanner in Control Center
Camera permissions - Grant camera access to apps
Focus issues - Tap to focus on Qlink
Lighting - Use flashlight feature in low light

Android Scanning

Google Lens - Built into camera app on many devices
Camera app variations - Different manufacturers have different interfaces
Third-party apps - Download dedicated QR scanner apps
Permissions - Allow camera and storage access
Auto-focus - Ensure camera can focus properly

Tablet Scanning

Camera quality - Some tablets have lower quality cameras
Size handling - Hold tablet at appropriate distance
Stability - Use stable grip or tablet stand
App scaling - Scanner apps may not be optimized
Touch interface - Ensure touch controls work properly

Scanner App Problems

App Won’t Open

App updates - Update scanner app to latest version
OS compatibility - Check minimum OS requirements
Storage space - Free up device memory
App permissions - Grant necessary permissions
Restart device - Reboot to clear app conflicts

Camera Not Working

Permission denied - Grant camera access in settings
Camera in use - Close other apps using camera
Hardware issues - Test camera with other apps
App conflicts - Temporarily disable other camera apps
Background apps - Close unnecessary background processes

Poor Recognition

App selection - Try different QR scanner apps
Recognition speed - Some apps scan faster than others
Feature differences - Apps have varying capabilities
Offline capability - Some apps work without internet
Batch scanning - Advanced apps support multiple codes

Environmental Factors

Lighting Conditions

Insufficient light - Move to better lighting or use flash
Too bright - Avoid direct sunlight causing glare
Uneven lighting - Ensure uniform illumination
Shadow interference - Remove shadows from Qlink
Reflective surfaces - Avoid reflections from glossy materials

Physical Positioning

Distance - Hold device 4-8 inches from Qlink
Angle - Keep device perpendicular to Qlink
Stability - Hold steady to avoid motion blur
Centering - Keep Qlink centered in viewfinder
Full visibility - Ensure entire Qlink is visible

Surface Issues

Curved surfaces - QR codes on bottles or cylinders
Damaged prints - Scratched or worn Qlinks
Small size - Qlinks smaller than 2cm x 2cm
Color contrast - Low contrast between code and background
Material issues - Transparent or reflective materials

Technical Solutions

Camera Settings

Auto-focus - Enable automatic focus
Exposure - Adjust exposure for better visibility
Image stabilization - Enable to reduce blur
Macro mode - Use for very close scanning
HDR mode - May help with contrast issues

App Settings

Scan sensitivity - Adjust detection sensitivity
Beep/vibrate - Enable feedback for successful scans
Auto-open links - Configure automatic link opening
History - Review scan history for repeated issues
Error correction - Some apps show error correction info

Common Fixes

Quick Solutions

Clean camera lens - Remove smudges and dust
Restart scanner app - Close and reopen application
Try different app - Use alternative scanner
Adjust distance - Move closer or further away
Improve lighting - Move to better lit area

Advanced Troubleshooting

Clear app cache - Remove temporary app data
Reinstall app - Delete and reinstall scanner
Update OS - Ensure latest operating system
Check QR validity - Test with online QR validator
Network connectivity - Ensure internet connection for links

Performance Optimization

Scanner Performance

App choice - Use high-rated scanner apps
Regular updates - Keep apps updated
Device maintenance - Regular device cleanup
Background processes - Minimize running apps
Storage management - Maintain adequate free space

User Training

Proper technique - Educate users on scanning best practices
App recommendations - Suggest reliable scanner apps
Troubleshooting guide - Provide user-friendly instructions
Alternative methods - Offer manual URL entry option
Support resources - Link to help documentation

Alternative Solutions

Backup Methods

Manual URL entry - Provide typed link option
SMS/email links - Send links via other channels
NFC alternatives - Near Field Communication options
Voice commands - Some devices support voice URL entry
Shortcut codes - Simple text codes for complex URLs

Accessibility Options

Large print QR codes - Bigger codes for better scanning
High contrast - Black and white versions
Audio feedback - Voice confirmation of scans
Zoom features - Apps with digital zoom
Simplified interfaces - Easy-to-use scanner apps

When to Get Help

User Support

Basic training - How to scan QR codes
App recommendations - Best scanner apps for their device
Troubleshooting steps - Simple problem-solving guide
Alternative access - Other ways to access content
Technical support - When to contact IT help

Technical Support

Persistent issues - Problems across multiple devices
QR code quality - Generation and printing problems
Mass deployment - Large-scale scanning issues
Integration problems - App or system compatibility
Analytics discrepancies - Scanning vs. reported data

Most scanning issues stem from environmental factors or app configuration. Following these troubleshooting steps resolves the majority of scanning problems.