About NFC technology
If your wireless service provider supports NFC technology, you can use NFC technology to quickly and wirelessly exchange information between your BlackBerry smartphone and smart accessories, smart payment terminals, and smart access points. You can also use NFC technology to save, view, create, or change smart tags.
Depending on your wireless service provider and the applications you have added to your smartphone, you might be able to use your smartphone as a transit pass, an access pass, or a credit card by tapping the smart tag reader on the back of your smartphone against a smart access point or smart payment terminal, subject to applicable terms and conditions from the particular vendor.
To use NFC technology on your smartphone, your smartphone must be within approximately 1 in. (2.5 cm) of the smart payment terminal, smart accessory, smart access point, or smart tag that you want to exchange information with. For functions such as viewing smart tags or connecting to smart accessories, NFC technology must be turned on and the backlight on your smartphone must be turned on. For payment transactions, you can use NFC technology on your smartphone even if your smartphone is locked, the backlight is turned off, or your smartphone is turned off. When you try to make a payment transaction using NFC technology, you are prompted to enter the password or PIN that is associated with your credit card or payment application.