Have changed your Samsung Galaxy Note 7 to Samsung Galaxy S7 Edge due to the security? If so, MobileTrans is what you need. It helps you transfer all the contacts, videos, photos, Apps and more at one time with a single click.
http://www.youtube.com/watch?v=cf-aXwL0IaU
Moreover, works with other smartphones:
Galaxy S6/S6 Edge+, S5, S4, Note5, Note4;
LG G5, G4, G3, V10;
Moto G, Moto X,
HTC 10, etc.