How to Fix ‘No Valid QR Code Detected’ Error in WhatsApp

The greatest & most highly regarded instant messaging app for iPhone & Android is without a doubt WhatsApp. The most effective app for messaging friends and family over the years has been the instant messaging one.

WhatsApp is accessible on PCs as well, including file-sharing, audio and video calling, and text messaging services. When you're working and don't want to constantly move between your computer and phone, WhatsApp's support for linked devices is incredibly helpful.

You may use your WhatsApp account on up to four separate devices with the WhatsApp Linked device functionality, all without having to keep your primary phone connected. The listed devices are compatible with desktop, mobile, and online versions of WhatsApp.

You must scan a QR code shown on the desktop or web client using the mobile app in order to pair WhatsApp on your phone with the desktop or web client. The mobile app may occasionally display an error message stating, "No Valid QR Code Detected," when you are scanning the QR code.

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Why does the error message "No Valid QR Code Detected" show up?

The message "No Valid QR Code Detected" that appears when scanning a WhatsApp QR Code has no particular cause. It's possible that you're scanning the code improperly or that it has expired.

A problem with the browser cache file or corrupted WhatsApp Cache files on mobile devices can also cause the No Valid QR Code Detected error.

Regardless of the cause, generic troubleshooting advice can be used to quickly resolve the "No Valid QR Code Detected" error.

How Can I Fix WhatsApp's "No Valid QR Code Detected" Error?

It's easy to fix the "No Valid QR Code Detected" error on WhatsApp; just follow the steps we've listed below. This is the solution to the WhatsApp problem.

1. Verify that the devices are correctly linked.

The WhatsApp iPhone home screen has a camera icon. No matter how many times you try to scan the QR code by tapping on the camera icon, you will always receive the error message "No Valid QR Code Detected."

Actually, in order to scan the QR codes that are shown on the computer screen, you must use the 'Linked Devices' option found under Settings. This is what you should do.

1. On your iPhone or Android device, launch the WhatsApp app. The Settings icon can then be tapped in the lower right corner.

2. Select the Linked Devices option from the Settings screen.

3. Select the Link a Device button from the Linked Devices screen.

4. Doing so will enable the camera on WhatsApp. To link a device, scan the QR code that is now visible on another device.

That’s it! If you follow these steps, you won’t get the ‘No Valid QR Code Detected’ error while scanning the QR code.

2. Make sure you’re scanning the official WhatsApp QR Code

Users need to understand that WhatsApp is not a QR code reader app. Hence, if you are using it to scan different QR Codes, you will get the ‘No Valid QR Code Detected’ error message.

WhatsApp only allows scanning the QR codes generated on its app or web version. So, make sure you are scanning the correct QR Code.

If you want to Scan other QR Codes, use the QR Code scanner apps for Android or iPhone.

3. Check Your Internet Connection

Another prominent reason the user gets ‘No Valid QR Code Detected’ error while scanning WhatsApp QR code from mobile is an unstable internet connection.

WhatsApp needs an active internet connection to read the QR code and load the chats on the other device. Without the internet, the process will fail and lead to errors.

So, before you try the next methods, ensure you have an active internet connection. You can visit the fast.com website to check your internet speed & stability.

4. Update the WhatsApp App

Bugs & glitches will be on the higher side if you use an outdated WhatsApp app on your Android or iPhone.

If an outdated WhatsApp app is the reason for ‘No Valid QR Code Detected’, you can easily fix it by updating it.

It’s pretty easy to update apps on Android and iPhone. On Android, open the Google Play Store and search for WhatsApp; open WhatsApp from the list and tap the Update button.

If you have an iPhone, open the App Store and tap the profile icon. On the next screen, scroll down and see all available updates. If the update button appears next to WhatsApp, tap it to update the app to the latest version.

5. Clear the WhatsApp Cache File

If you get the ‘No Valid QR Code Detected’ error while scanning the desktop QR code from Android, you must clear the WhatsApp App’s cache file. Here’s how to clear your WhatsApp App’s cache files in easy steps.

1. Long press the WhatsApp App icon on your home screen and select App Info.

2. On the WhatsApp App Info, tap on Storage Usage.

3. On the next screen, tap on the Clear Cache.

That’s it! After clearing the app cache, open it again and scan the QR code.

6. Clear the Desktop Browser’s Cache

Just like the mobile app, you must also clear the desktop browser’s cache files. Here’s how to clear your desktop web browser’s cache (Chrome).

1. Open the Chrome browser and click on the three dots at the top right corner.

2. On the Chrome menu, click on Clear browsing data.

3. Select All Time on the Time Range. Next, check the Cookies and other site data, and Cache images and files. Once selected, click on the Clear Data button.

That’s it! This will clear the browser cache. After clearing the cache, open the web.whatsapp.com and generate a new QR code for linking with Android or iPhone.

7. Try Using a Different Web Browser

Your browser is most likely to blame if you continue to receive the error message "No Valid QR Code Detected" when trying to scan the QR code from the mobile app.

By utilizing a different web browser, you can confirm if your present one is the problem. To scan your code again, just switch to the Edge browser (or Opera if you're using Chrome).

You can try reinstalling the Chrome browser or using the one that is compatible with WhatsApp if all goes according to plan.

Thus, these are a few easy procedures to fix WhatsApp's "No Valid QR Code Detected" bug.