1. Go to linked devices and clear it all
chek whatsapp settings /linked devices (ios) for Android go to thre-dots/linked devices
2. Install Latest Version of Whatsapp
The first thing you should do is make sure you’re using the latest version of Whatsapp on both your phone and your computer. You may encounter issues when scanning the QR code if you’re not. To check if you’re using the latest version of Whatsapp, go to the app store on your phone and the download page on your computer and check for updates.
3. Check Your Internet Connection
Another common reason you might get the invalid QR code error message is a poor internet connection. Ensure that your phone and computer are connected to a stable internet connection before scanning the QR code again.
4. Clear Your Browser Cache
If you’re still having trouble scanning the QR code, try clearing your browser cache. This can help resolve any issues preventing the QR code from loading properly. To clear your browser cache, follow the instructions for your specific browser.
5. Restart Your Phone and Computer
Sometimes, simply restarting your phone and computer can help to resolve any issues you’re having with scanning the QR code. Make sure to completely shut down both devices and then restart them before attempting to scan the code again.
6. Try Using a Different Browser
If you still have trouble scanning the QR code, try using a different browser. Sometimes, certain browsers may have issues with scanning QR codes, so switching to a different browser can help to resolve the problem.
7. Contact Whatsapp Support
If you’ve tried all of the above steps and are still unable to scan the QR code, you may need to contact Whatsapp support for further assistance. You can do this by going to the help section of the Whatsapp website and submitting a support request.