Solving WhatsApp Web Scanner Not Working

Encountering issues with the WhatsApp Web scanner can be frustrating, especially when you need quick access to your messages. This comprehensive guide provides easy-to-follow solutions for resolving QR code scanning problems, ensuring a seamless chatting experience on WhatsApp Web.

Why Is WhatsApp Web Scanner Not Working?

Several factors can cause the WhatsApp Web scanner to malfunction. It could be due to a dirty camera lens, network issues, browser problems, or even outdated app versions. Identifying the root cause is the first step towards a solution.

Step-by-Step Troubleshooting Guide

  1. Use WhatsApp’s Built-In Scanner: Make sure to use the QR code scanner located in WhatsApp’s settings menu. This can be found under Settings > Linked Devices > Link a Device on iOS, and by tapping the three-dot menu icon, selecting Linked Devices, and then Link A Device on Android. For detailed instructions, click here.
  2. Clear Phone Cache (Android Only): On Android devices, clearing the WhatsApp cache can help resolve issues. Navigate to Settings > Apps > WhatsApp > Storage and tap ‘Clear cache’. After doing this, restart your phone. Learn how to clear your cache here.
  3. Reset Phone’s Network Settings: Network issues can often be the cause of scanning problems. Resetting your network settings might help, but the steps to do this will vary depending on whether you’re using an Android or an iPhone. Find detailed steps for Android and iPhone here.
  4. Disable Wi-Fi and Scan with Mobile Data: If Wi-Fi connectivity issues are preventing the scanner from working, try disabling Wi-Fi and using mobile data instead. Discover more about this solution here.
  5. Disable Hardware Acceleration in Chrome: For users experiencing issues while using Chrome, disabling the ‘Hardware Acceleration’ feature in the browser’s settings (found under the System section) might provide a solution. Instructions on how to do this can be found here.
  6. Clean Your Phone’s Camera Lens: A dirty or obstructed camera lens can prevent successful scanning of the QR code. Cleaning the lens with a dry earbud or a fiber cloth can be an easy fix.
  7. Clear Computer Browser Cookies: If the issue is on the computer’s end, clearing cookies in the web browser might help. The steps for doing this will differ based on the browser you are using.
  8. Turn off Dark Mode on Your Desktop: Dark mode, in some cases, can affect the visibility of the QR code. Try turning it off and then scanning the QR code.
  9. Remove Excess Linked Devices: WhatsApp allows up to four linked devices. If you’ve reached this limit, consider removing a device that you rarely use.
  10. Download WhatsApp for Desktop: If the web version of WhatsApp is problematic, downloading and using the WhatsApp application for your desktop could be a better option.
  11. Restart Your Devices: Sometimes, simply restarting both your computer and mobile device can resolve temporary glitches causing the scanner to malfunction.
  12. Check for WhatsApp Updates: Ensuring that both your WhatsApp mobile app and desktop version are updated to the latest version can also fix some issues.
  13. Check WhatsApp’s Service Status: Tools like DownDetector can inform you if WhatsApp is experiencing any widespread issues that might be affecting its functionality.
  14. Contact WhatsApp Support: If all else fails, reaching out to WhatsApp support directly through the app can provide further assistance.

Other Useful Tips

  • Clean Your Camera Lens: A simple cleaning of your phone’s camera lens can sometimes fix scanning issues.
  • Update WhatsApp: Ensure both the mobile and desktop versions of WhatsApp are up-to-date.
  • Check WhatsApp Service Status: Use tools like DownDetector to check for widespread issues.


With these tips, you should be able to resolve most issues related to the WhatsApp Web scanner. Remember, keeping your apps updated and ensuring a clear camera lens can prevent many of these problems. For more detailed instructions and tips, please refer to the linked resources.

By Dora

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