QR Scanner app not working? crashes or has problems?

QR Scanner Status

Last Updated on 2024-01-17 by Woo Joo Studio

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Common QR Scanner Problems & Solutions. Troubleshooting Guide

Complete guide to troubleshoot QR Scanner app on iOS and Android devices. Solve all QR Scanner app problems, errors, connection issues, installation problems and crashes.

Table of Contents:

QR Scanner iPhone Issues and Solutions

QR Scanner iOS app crashes, not working, errors
QR Scanner iOS app network issues
QR Scanner on iOS has black/white screen

QR Scanner Android App Issues and Solutions

QR Scanner has errors/crashing/not working
QR Scanner server network connectivity issues
QR Scanner has black screen

QR Scanner iPhone Issues and Solutions

Here are some helpful workarounds that should work whenever QR Scanner app keeps crashing or doesn't work as expected on your iPhone 14, 13,12,10,8,7,6, SE,XS,XR.

How to fix QR Scanner app crashes or not working on Iphone (iOS):

Close and restart the QR Scanner app on iPhone
Update QR Scanner app to the Latest Version for iOS
Uninstall and reinstall QR Scanner iPhone app
Update your iPhone to the latest iOS version

Fix QR Scanner on iPhone unable to connect to server/internet connection issues::

To resolve QR Scanner network issues, Reset phone network settings:
1. On iphone, Goto "Settings" » "General" » "Reset" » "Reset Network Settings".
2. Enter your device passcode. Then confirm "Reset Network Settings".

Turn off your VPN:
1. Goto "Settings" » "General" » "VPN".

Fix QR Scanner black/white screen (blank screen) on iPhone:

Follow the QR Scanner iOS app troubleshooting guide Here →

QR Scanner Android App Issues and Solutions

Fix QR Scanner not working on Android, crashes, errors or is unresponsive:

Follow these steps to resolve intermittent QR Scanner app issues:

Force Stop the QR Scanner App
1. On android, goto "Settings" » click QR Scanner app. » click "Force Stop".

Update QR Scanner to the latest version on PlayStore

Clear QR Scanner App Cache and Data:
1. On your device, goto "Settings" » click "Apps" » select "QR Scanner app" » click "Storage" » click "Clear Data" option. This Clears both data and cache.
2. Relaunch QR Scanner.

Fix QR Scanner unable to contact server/ QR Scanner internet connection errors on Android:

This issue is usually caused by your network. Here is how to fix:

On android, goto "Settings" » "Apps" or "Manage Apps" tab.
Click QR Scanner » "Force Stop".
Next, goto "Storage" » "Clear Data".
Again, got QR Scanner » "Mobile Data" » "Allow Background Data Usage".
Go back to "Settings" » "Connections" » "Mobile Network" » "Network Mode".
Now, put your network on 4G e.g. LTE/3G/2G (auto connect)
Relaunch QR Scanner on android.

Solve QR Scanner black/white screens issue on Android:

Follow the QR Scanner android app crash troubleshooting guide Here →

Contact Support

Some issues cannot be easily resolved through online tutorials or self help. So we made it easy to get in contact with the support team at Woo Joo Studio, developers of QR Scanner.

About this app

Safe, professional and easy to use QR code scanner, QR code reader and barcode scanner. Download now! To scan a QR code or barcode, you just open QRScanner and point your camera at the code you want to scan, and QRScanner will automatically detect, scan, read and decode it.