I’ve got some resolution for you, David.
To connect your card reader, you’ll want to ensure it’s up to date. This way, you can continue using it without any interruptions.
On the other hand, if your card reader device is already updated, you’ll need to disconnect and then reconnect it to start on a clean slate.
You can use this guide to learn more about QuickBooks card readers and the programs or applications they work best with: QuickBooks Payments card reader features and compatibility.
Please let me know if you have any other questions or concerns besides your card reader. I’ll be right here to help further. Have a good one and take care always!