To Activate your Cash Card without using the QR code
If you no longer have the QR code: Tap the Cash Card tab on the cash app home screen. Touch the picture of your cash card. Tap Activate cash card. Tap Use CVV instead. Enter the CVV code and the expiration date of your new cash card. These are some the steps followed up for Activate your Cash Card without using the QR code.
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