Al1978

Here is a rundown of my situation: - Model Swann DVR8-1580 - Recently purchased it - Already been replaced under warranty for same issue (after 1 week), so I presume its cables/power supply etc - I am intermittently losing camera vision randomly on cameras 4-8, sometimes more than one. - Example: camera 7 goes black (does NOT say no signal) - PROBLEM IS RESOLVED EVERY TIME BY RESTARTING DVR - Cameras 1-4 always working - I have swapped all the power supplies for new ones and interchanged them, no difference - All wiring tested with multi-meter (no shorts that I can detect) Would appreciate any advice, Swann has no idea.

Long story of why I need this, but essentially I am trying to make the system as easy as possible to use for elderly parents. If the DVR restarts after a power outage for example, it boots up with 3x3 (9 camera view). I want to system to default to the 4 camera view instead. Is this possible with a firmware edit or something? System is a Swann - SWDVK-8720T4D2 (DVR8-1580 8 channel) Cheers Al