I'd suggest setting up the device on a table and make sure basic functions before installation.
Part1: Software and phone app
1. For the software/diagram and video, please check from below:
https://beseencontrol.com/controldoor.html
2.
- use phone app to open lock from:
https://beseencontrol.com/phoneapp.html
please check below video:
https://www.youtube.com/watch?v=nxTXr6rT-M4&feature=youtu.be
