From the Tippy app on the iPad.
Select 3 line menu in upper lefthand corner
Select "Update Needed" “Manage Readers”
***Doesn't allow you to click it? Add a passcode first following these steps. ***
Once you successfully select “Manage Reader” a new window will appear.
If you are still using the White Square reader will select “Manage Old Reader” if you have the Black Adyen reader select "Connect New Reader"
You will then be prompted with the Square "Connect a Reader" page
Follow the prompts to pair your reader.