What is NFC and Payment in Settings?

NFC refers to near field communication, which has applications to mobile payments. NFC allows two close proximity devices to exchange data. Both devices must have an NFC chip.

What version of Android are you running?

Apps -> Settings -> Scroll all the way down to "About Device".

The Android version will be displayed. Example: 5.1.1. At time of writing latest is version 6.0 (Marshmallow).

Getting Music into the Galaxy

How do I transfer music on to the Samsung Galaxy?