found this which is really helpful for adding the "hidden " smart lock feature on touchwiz / lollipop 5.0.1

Silly samsung hiding features ... tut

http://howto.highonandroid.com/samsung-tutorials/guide-how-to-set-up-smart-lock-feature-on-galaxy-note-4-galaxy-s6-s6-edge/#comment-1700

Hi there guys and gals,

I have started a thread over on XDA Developers, hoping that we can get an actual forum.

http://forum.xda-developers.com/general/accessories/nfcring-official-t3063237

so if you could show it some love that would be great.

Cheers
Alex

bought one , installed it on my Front Door and registered my NFC|Ring and it only bloody works. quite easy with the english instructions. under an hour total time, quicker if you have a buddy to hold the screws/ help lining up.(

@johnyma22 http://www.ebay.co.uk/itm/NEW-SAMSUNG-EZON-SHS-1321-Digtial-Door-Lock-4-Keytags-English-Manual-/221080048983?_trksid=p2054897.l5658