If you need to open a Cisco CASE hou need to:
1.) Logon here:
https://www.cisco.com/c/en/us/index.html
Support --> Contact Support --> Open New Case
Or using below link
https://mycase.cloudapps.cisco.com/case
2.) Open a new case
3.) Insert Serial Number, click on search button and then Next
4.) Final next page you need to fullfill case required fields (like title, problem description, email contacts etc. etc.)
