Change vCenter credentials?

[VirtualSven]

I updated vCenter 5.0 to 5.1 and now I get the following error:

Error detail: Cannot login to vCenter Server. Please confirm vCenter Server is running. See catalina.out log for the full stack trace.

I can explain this because during installation I used the local admin account of the vCenter server and that account doesn't have permissions anymore. The SSO service only allows AD credentials now.

Question: how can I change the vCenter credentials from the command line in the configurator VM?

[VirtualSven]

Already figured it out:

hznAdminTool editproperty --set=vim_username:username@domain