Hey guys. I'm a technician for an alarm company, we install these DVRs and NVRs, I've experienced a few of this same issues mentioned, as well as the DAHUA I have at home. What I was told was that DAHUA did a firmware update that was executed incorrectly. They are aware of the issue.
This is the fix I was given, keep in mind when formatting the hard drive you will loose all your previous recordings.
Step 1
- HD manage
- Format
- Execute
- Ok
- Ok (restart)
Step 2
- Settings
- Default
- Ok
So basically your factory defaulting he settings. I did notice that the recording schedule and motion recording stayed there after settings were defaulted.