Troubleshooting

Troubleshooting

This guide covers common issues and their solutions. If you don’t find your issue here, see the FAQ or contact support.

Camera Not Scanning Barcodes

Possible Causes:

• Poor lighting
• Damaged or dirty barcode
• Camera focus issues
• Unsupported barcode format

Solutions:

1. Improve lighting: Scan in bright, even light. Avoid shadows and glare.
2. Clean your camera lens: Wipe the lens with a soft cloth.
3. Hold steady: Keep your device stable and centered on the barcode.
4. Try manual entry: If the barcode is damaged, enter it manually using the keyboard icon.
5. Check barcode format: See Supported Barcode Formats.

Camera Permission Denied

Cause: Camera access was denied during initial setup.

Solution:

1. Open Android Settings → Apps → UPC Scanner
2. Tap Permissions
3. Tap Camera
4. Select Allow
5. Return to UPC Scanner and try scanning again

CSV Export Fails

Cause: Storage permission was not granted.

Solution:

1. Tap Export again
2. When prompted, tap Allow to grant storage access
3. Choose a save location and confirm

If the issue persists:

1. Open Settings → Apps → UPC Scanner → Permissions
2. Ensure Storage is set to Allow
3. Try exporting again

Scan Data Lost After Closing App

Cause: You closed UPC Scanner without exporting your scan session.

Explanation: UPC Scanner does not save scan sessions automatically. Your data is temporary and exists only during the current session.

Solution: Always export your CSV before closing the app. To prevent future data loss:

1. Export after every scan session
2. Set a reminder to export before closing
3. Consider exporting incrementally (e.g., every 50 scans)

App Crashes or Force Closes

Solution:

1. Clear app cache: Settings → Apps → UPC Scanner → Storage → Clear Cache
2. Restart your device
3. Update to the latest version from Google Play
4. If crashes continue, uninstall and reinstall

If the problem persists, email crash logs to support@mmediasoftwarelab.com.

Inventory Mode Not Counting Correctly

Cause: Inventory Mode may be disabled, or you’re scanning different barcode formats.

Solution:

1. Open Settings and confirm Inventory Mode is toggled ON
2. Ensure you’re scanning the same exact barcode (same format, same number)
3. If barcodes differ slightly, they will be counted as separate items

Barcode Format Not Recognized

UPC Scanner supports:

• UPC-A, UPC-E, EAN-13, EAN-8
• Code 39, Code 128
• QR Code, Data Matrix

If your barcode isn’t recognized:

1. Verify it’s one of the supported formats
2. Try scanning in better lighting
3. Use manual entry if the format is unsupported

Battery Drain

UPC Scanner uses battery while the camera is active. This is normal for camera-based apps.

To reduce battery usage:

• Close UPC Scanner when not in use
• Lower screen brightness
• Export and close the app after each session

Still Having Issues?

See the FAQ or contact UPC Scanner support.