Hello, because no electric video recorder did not manually set, but I would like to look back a few days before the monitor can be transferred out
2, although the surveillance camera access to the hard disk video recorder, but the video storage of the hard disk failure, can not playback.
3, the operator will not operate the hard disk video recorder, did not correctly follow the normal steps to call the DVR video. 4, hard disk video recorder motherboard problems.
1, if the surveillance camera is only access to the monitor, no access to the hard disk video recorder, video images are not stored, you can only see the real-time picture, can not playback.
