To activate your Cash Card using the QR code: Tap the Cash Card tab on your Cash App home screen Tap the image of your Cash Card Tap Activate Cash Card Tap OK when your Cash App asks for permission to use your camera Scan the QR code If you no longer have the QR Code: Tap the Cash Card tab on your Cash App home screen Tap the image of your Cash Card Tap Activate Cash Card Tap Use CVV...