First of all, please enable the snapshot function. You can check with the following procedure.

  1. Main Menu->setting->schedule, choose the channel that you want to use the snapshot function, enable the snapshot function, and enable MD function in the right period. Please don’t forget to save it.
  2. Main Menu->setting->detect, choose the Event Type and the right channel, please enable this detect function and snapshot function with the right channel.
  3. Main Menu->setting->encoding->snapshot, please change the mode to trigger.

If you have done that, please Enter Main Menu->Backup, then you will see the picture like this:


Choose the USB device, then enter Backup. And you will see: