Warranty & Returns Zosi Customer Service Center April 08, 2019 19:54 Updated Follow Related articles Contact Us You got "Video Loss" on one channel or all channels. How to setup your TVI DVR recorder with security camera system? How to reset NVR’s password? (Works for ZR04JB, ZR08KB and ZR08QB NVR System) Can we have sound in record video? Comments 0 comments Article is closed for comments.