NOTE: You can playback the recording on the monitor, on the computer browser, and on the phone app.
Playback on the monitor.
Right-click mouse on the NVR monitor and select Video Playback-->manual search select the channel, type of video and click search and drag the time bar to where it has color and click playback.
Playback on the phone APP
Here is the method to get the phone view.
Go to playback and select channel, period.
Playback on the computer
Here is a method to get a view on a computer.
Go to playback and select channel, period, and type of video. Click search.