Office 365 application endpoint upgrade fails with the following error:
Trying to detect SQL Server connection string from existing configuration... Failed to detect the SQL Server connection. Please, specify database connection parameters explicitly
This Upgrade instructions step was skipped:
Unblock the content of the O365-Web.zip file. To do this, right-click the file in Windows Explorer, click Properties, click Unblock, click OK.
Unblock folder content, check directory permissions and navigate to the deployment folder, right-click the Deployment.dll file, select
Properties context menu item and click