Samsung Galaxy Note5 - Camera and Video; Camera Overview

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Settings NFC and Payment
Tap and Pay
Tap and pay allows you to select the default payment
app you want to use for making purchases on your
phone.
1. From a Home screen, tap Apps > Settings >
NFC and payment.
2. Tap ON/OFF to turn NFC on.
3. Tap Tap and pay.
4. Select the app that you want as your default.