What information of the iViewer should I provide to contact technical support for help?

Please provide the following information while contacting technical support for help:

1. Mobile device model and software version. (Ex: iPhone XS, software version:14.3)
2. Problem description.
3. Reproducing steps/ history.
4. Snapshots or video clips to show the problem.
5. Date and time when the problem happened.
6. Devices which be added in the iViewer: model name, firmware version, device pack version for NVR , and VMS.
7. Devices which be added in the iViewer: IP addresses, port number, account and password.
   How to know the IP addresses of the devices in the iViewer?
8. The version of the iViewer you used.
   How to know the version of the iViewer?