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Barcode Problems

Fix barcode scanning issues

Last updated: January 19, 2026

Barcode Problems

Having trouble with barcode scanning? Find solutions to common issues here.

Camera Not Working

Check Camera Permission

Your browser needs permission to use the camera.

Chrome:

  1. Click the lock icon in the address bar
  2. Find Camera
  3. Select “Allow”
  4. Refresh the page

Firefox:

  1. Click the lock icon in the address bar
  2. Click “More Information”
  3. Go to Permissions tab
  4. Find Camera and select “Allow”

Safari:

  1. Go to Safari > Settings for This Website
  2. Find Camera
  3. Select “Allow”

Camera Used by Another App

If you see “Camera is in use”:

  1. Close other apps that use the camera (Zoom, Teams, etc.)
  2. Close other browser tabs that might use the camera
  3. Restart your browser
  4. Restart your device if needed

No Camera Found

If OKPaid cannot find a camera:

  1. External webcam - Make sure it is plugged in
  2. Built-in camera - Check if it works in other apps
  3. Permissions - Some work devices block camera access
  4. Drivers - Update camera drivers (Windows)

Barcode Not Detected

Improve Lighting

Barcodes need good lighting to scan:

  • Turn on room lights
  • Move closer to a window
  • Avoid shadows on the barcode
  • Avoid direct light reflecting off the barcode

Adjust Distance

Hold the barcode at the right distance:

  • Too close - Camera cannot focus
  • Too far - Barcode too small to read
  • Best distance - About 15-20 cm (6-8 inches)

Barcode framed at the ideal scanning distance

Check the Barcode

The barcode itself might have problems:

  • Damaged - Scratched or torn barcodes may not scan
  • Dirty - Clean the barcode surface
  • Wrinkled - Flatten packaging if possible
  • Faded - Very old barcodes may be too faded

Hold Steady

Movement makes scanning difficult:

  • Rest your elbow on a surface
  • Hold the device with both hands
  • Wait for the scanner to focus

Clean Camera Lens

A dirty lens causes blurry images:

  1. Use a soft, clean cloth
  2. Gently wipe the camera lens
  3. Avoid touching the lens with fingers

Wrong Product Information

Product Not in Database

The our database does not have every product.

When this happens:

  • The barcode number is still captured
  • Enter product details manually
  • The barcode is saved for future use

Incorrect Product Data

Our data may have errors:

  1. Review the auto-filled information
  2. Edit any incorrect details
  3. Save the corrected product

Wrong Product Found

If a completely wrong product appears:

  1. The barcode may be shared across regions
  2. Clear the auto-filled data
  3. Enter the correct information manually
  4. Your entry will be used next time

Scanning Performance Issues

Scanner is Slow

If scanning takes a long time:

  1. Improve lighting - More light helps
  2. Clean lens - Dirty lens causes focus issues
  3. Restart browser - Free up memory
  4. Close other apps - Free up device resources
  5. Try a different browser - Some perform better

Scanner Crashes

If the scanner stops working:

  1. Refresh the page
  2. Close and reopen the browser
  3. Clear browser cache
  4. Update your browser
  5. Restart your device

Battery Drains Quickly

Camera use drains battery fast:

  • Close scanner when not using it
  • Plug in your device while scanning many items
  • Use continuous mode to scan faster

Specific Barcode Types

QR Codes Not Scanning

QR code support is coming soon. Currently only product barcodes are supported:

  • EAN-13
  • EAN-8
  • UPC-A
  • UPC-E
  • Code 128
  • Code 39

Barcode Format Not Supported

If you see “Unsupported format”:

  • The barcode type may not be supported yet
  • Enter the barcode number manually
  • Check if the barcode is printed correctly

Mobile-Specific Issues

iOS Safari Problems

  1. Make sure Safari has camera permission in iOS Settings
  2. Close Safari completely and reopen
  3. Try using Chrome for iOS instead

Android Problems

  1. Check camera permission in Android Settings > Apps
  2. Clear browser app cache
  3. Update the browser app
  4. Try a different browser

Desktop Webcam Issues

Webcam Quality

Built-in laptop webcams may struggle with barcodes:

  • Use better lighting
  • Print larger barcodes if possible
  • Consider an external webcam with auto-focus

Multiple Cameras

If you have multiple cameras:

  1. Go to Organization > Barcode Scanning
  2. Choose the preferred camera
  3. Back camera (on tablets) usually works best

Still Having Problems?

If barcode scanning still does not work:

  1. Add products manually - Use the regular product form
  2. Enter barcode number - Type the numbers below the barcode
  3. Contact support - Message us on Telegram or email contact@okpaid.io with:
    • Device type (phone, tablet, laptop)
    • Browser name and version
    • Description of the problem
    • Screenshot if possible

Tips

Tip: Test the scanner with a known product before scanning new items.

Tip: Keep your browser and device updated for best performance.

Tip: Practice scanning technique - it gets easier with experience.