I bought the phone new and used Samsung smart switch to set the phone up from my S10+ so not sure if something has happened during this process as I also noticed my default tones fro Snapchat,WhatsApp etc were all missing and using the basic notification tones installed in the phone. Its as if something is set wrong within the phone but I've no idea what. I have tried all of the options you mentioned above and all divert me to my notes and display text. If you're able to scan a QR code in Safe Mode without issue, then this suggests that a third party app is limiting you in some way, in which case I recommend removing any recently installed apps to address this. Safe Mode temporarily disables third party apps, and helps to determine if any issues are stemming from an external source. Similarly, in the Edge app for Android, just tap the camera icon in the search box and choose Barcode.Which app are you using to access the QR scanner? Please can you check the link below, and follow the steps provided for scanning QR codes via Bixby Vision, Samsung Internet, Camera app and Gallery, and let me know if you have any success via one of these options? I have already tried downgrading to other versions as 0.14.0.1 and the other instructions from similar StackOverflow questions. Known devices whose QR Scanner and Compass apps are not working following the MIUI 12. Complainants have stated that it too doesn’t work, likely because it is bound to the Mi Scanner app. But it is not working for camera photos of the qr code like the following one. The QR code scanner within the MIUI Camera app hasn’t been either. In Firefox for Android, you can scan a QR code simply by tapping the address bar and pressing Scan. This is working well for the following downloaded qr code. Tap the three-line button in the bottom-right corner of the screen, choose Settings and select "Useful features." Switch on "QR code scanner," then tap your address bar and select "QR code icon" to add a scanning shortcut to the browser. On Samsung phones, you can activate this option in the Samsung Internet browser. Rather than scan a QR code with your camera app and then open its link separately in your browser, some Android browsers let you scan and open codes directly. How to scan a QR code with your Android browser Also, unlike many free QR code scanners, it’s completely free of ads. We recommend QR Code & Barcode Scanner, which works quickly even when you’re some distance from a code and doesn’t require an internet connection. Scan the QR code to test its functionality atand nearthe 10:1 distance ratio. QR codes are good at accommodating scanning distances near the optimal ratio, though. For example, if the QR code is 2 wide, the optimal scanning distance is 20 away. On older phones that run Android 7 (Nougat) or earlier, you’ll need to install a third-party app to scan QR codes. The optimal scanning distance from a QR code is a 10:1 ratio of distance to width. Alternatively, install the Google Lens app to add a shortcut to your home screen. Either long-press the Home button or say “Hey Google” to open Assistant, then tap the Google Lens icon. If your phone is running Android 8 (Oreo), you can scan QR codes with Google Lens via Google Assistant. How to scan a QR code on older Android phones You can also access the "Scan QR code" option by swiping down from the top of your screen to open the Quick Settings tray. On Samsung phones, which use their own technology for scanning QR codes, ensure that "Scan QR codes" is turned on in the Camera app’s settings. Go into your camera app’s settings and switch on Google Lens there. If nothing happens when you scan a QR code with your camera, you may need to activate Google Lens manually.
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